[#10] MemberAdminWindow: Implement MVVM

Elwig/Elwig.csproj

@@ -25,6 +25,7 @@
   </Target>
 
   <ItemGroup>
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />
     <PackageReference Include="LinqKit" Version="1.3.0" />
     <PackageReference Include="MailKit" Version="4.7.1.1" />
     <PackageReference Include="Microsoft.AspNetCore.Razor.Language" Version="6.0.32" />

Elwig/Helpers/ControlUtils.cs

@@ -171,15 +171,19 @@ namespace Elwig.Helpers {
             return item;
         }
 
-        public static object? GetItemFromSource(IEnumerable source, object? item) {
+        public static T? GetItemFromSource<T>(IEnumerable source, T? item) {
-            return GetItemFromSource(source, Utils.GetEntityIdentifier(item));
+            return (T?)GetItemFromSource(source, Utils.GetEntityIdentifier(item));
+        }
+
+        public static object? GetItemFromSourceWithPk(IEnumerable source, params object?[] primaryKey) {
+            return GetItemFromSource(source, (int?)Utils.GetEntityIdetifierForPk(primaryKey));
         }
 
         public static void SelectItemWithHash(Selector input, int? hash) {
             if (hash == null) {
                 input.SelectedItem = null;
             } else {
-                input.SelectedItem = GetItemFromSource(input.ItemsSource, (int)hash);
+                input.SelectedItem = GetItemFromSource(input.ItemsSource, hash);
             }
             if (input is ListBox lb && lb.SelectedItem is object lbItem) {
                 lb.ScrollIntoView(lbItem);

Elwig/Helpers/Utils.cs

@@ -537,6 +537,11 @@ namespace Elwig.Helpers {
             }
         }
 
+        public static int GetEntityIdetifierForPk(params object?[] primaryKey) {
+            var pk = primaryKey.Select(k => k?.GetHashCode() ?? 0).ToArray();
+            return ((IStructuralEquatable)pk).GetHashCode(EqualityComparer<int>.Default);
+        }
+
         public static int? GetEntityIdentifier(object? obj) {
             if (obj == null) {
                 return null;

Elwig/Services/MemberService.cs

@@ -0,0 +1,503 @@
+using Elwig.Helpers;
+using Elwig.Models.Entities;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System;
+using Microsoft.EntityFrameworkCore;
+using Elwig.Documents;
+using System.Windows.Input;
+using System.Windows;
+using Elwig.Helpers.Billing;
+using Elwig.Models.Dtos;
+using Elwig.Helpers.Export;
+using Microsoft.Win32;
+using Elwig.ViewModels;
+
+namespace Elwig.Services {
+    public static class MemberService {
+
+        public static async Task InitInputs(this MemberAdminViewModel vm) {
+            using var ctx = new AppDbContext();
+            vm.MgNrString = $"{await ctx.NextMgNr()}";
+            vm.EntryDate = DateTime.Now.ToString("dd.MM.yyyy");
+            if (vm.BranchSource.Count() == 1)
+                vm.Branch = vm.BranchSource.First();
+            vm.IsActive = true;
+            vm.ContactViaPost = true;
+            vm.EnableMemberReferenceButton = false;
+        }
+
+        public static void ClearInputs(this MemberAdminViewModel vm) {
+            vm.IsMemberSelected = false;
+            vm.MemberHasEmail = false;
+            vm.MemberCanSendEmail = false;
+            vm.EnableMemberReferenceButton = false;
+            vm.StatusDeliveriesLastSeason = "-";
+            vm.StatusDeliveriesLastSeasonInfo = $"{Utils.CurrentLastSeason - 1}";
+            vm.StatusDeliveriesLastSeasonToolTip = null;
+            vm.StatusDeliveriesThisSeason = "-";
+            vm.StatusDeliveriesThisSeasonInfo = $"{Utils.CurrentLastSeason}";
+            vm.StatusDeliveriesThisSeasonToolTip = null;
+            vm.StatusAreaCommitment = "-";
+            vm.Age = "-";
+        }
+
+        public static void FillInputs(this MemberAdminViewModel vm, Member m) {
+            vm.IsMemberSelected = true;
+            vm.MgNrString = $"{m.MgNr}";
+            vm.PredecessorMgNrString = $"{m.PredecessorMgNr}";
+            vm.EnableMemberReferenceButton = m.PredecessorMgNr != null;
+            vm.Prefix = m.Prefix;
+            vm.GivenName = m.GivenName;
+            vm.FamilyName = m.FamilyName;
+            vm.Suffix = m.Suffix;
+            vm.Birthday = (m.Birthday != null) ? string.Join(".", m.Birthday.Split("-").Reverse()) : null;
+            if (m.Birthday?.Length == 10) {
+                vm.Age = Utils.GetAge(DateOnly.ParseExact(m.Birthday, "yyyy-MM-dd")).ToString();
+            } else if (m.Birthday != null) {
+                vm.Age = "ca. " + (DateTime.Now.Year - int.Parse(m.Birthday[^4..])).ToString();
+            } else {
+                vm.Age = "-";
+            }
+            vm.IsDeceased = m.IsDeceased;
+            vm.Address = m.Address;
+            if (m.PostalDest.AtPlz is AT_PlzDest p) {
+                vm.PlzString = $"{p.Plz}";
+                vm.Ort = ControlUtils.GetItemFromSource(vm.OrtSource, p);
+            } else {
+                vm.PlzString = null;
+                vm.Ort = null;
+            }
+
+            var emailAddrs = m.EmailAddresses.OrderBy(a => a.Nr).ToList();
+            for (int i = 0; i < vm.EmailAddresses.Count; i++) {
+                if (i < emailAddrs.Count) {
+                    var emailAddr = emailAddrs[i];
+                    vm.EmailAddresses[i] = emailAddr.Address;
+                } else {
+                    vm.EmailAddresses[i] = null;
+                }
+            }
+
+            var phoneNrs = m.TelephoneNumbers.OrderBy(p => p.Nr).ToList();
+            for (int i = 0; i < vm.PhoneNrs.Count; i++) {
+                if (i < phoneNrs.Count) {
+                    var phoneNr = phoneNrs[i];
+                    var idx = vm.PhoneNrTypes.Select((e, i) => (e, i)).FirstOrDefault(kv => kv.e.Key == phoneNr.Type).i;
+                    vm.PhoneNrs[i] = new(idx, phoneNr.Number, phoneNr.Comment);
+                } else {
+                    vm.PhoneNrs[i] = new();
+                }
+            }
+
+            vm.Iban = m.Iban;
+            vm.Bic = m.Bic;
+
+            vm.UstIdNr = m.UstIdNr;
+            vm.LfbisNr = m.LfbisNr;
+            vm.IsBuchführend = m.IsBuchführend;
+            vm.IsOrganic = m.IsOrganic;
+
+            var billingAddr = m.BillingAddress;
+            if (billingAddr != null) {
+                vm.BillingName = billingAddr.Name;
+                vm.BillingAddress = billingAddr.Address;
+                if (billingAddr.PostalDest.AtPlz is AT_PlzDest b) {
+                    vm.BillingPlzString = $"{b.Plz}";
+                    vm.BillingOrt = ControlUtils.GetItemFromSource(vm.BillingOrtSource, b);
+                }
+            } else {
+                vm.BillingName = null;
+                vm.BillingAddress = null;
+                vm.BillingPlzString = null;
+                vm.BillingOrt = null;
+            }
+
+            vm.EntryDate = (m.EntryDateString != null) ? string.Join(".", m.EntryDateString.Split("-").Reverse()) : null;
+            vm.ExitDate = (m.ExitDateString != null) ? string.Join(".", m.ExitDateString.Split("-").Reverse()) : null;
+            vm.BusinessSharesString = $"{m.BusinessShares}";
+            vm.AccountingNr = m.AccountingNr;
+            vm.Branch = (Branch?)ControlUtils.GetItemFromSourceWithPk(vm.BranchSource, m.ZwstId);
+            vm.DefaultKg = (AT_Kg?)ControlUtils.GetItemFromSourceWithPk(vm.DefaultKgSource, m.DefaultKgNr);
+            vm.Comment = m.Comment;
+            vm.IsActive = m.IsActive;
+            vm.IsVollLieferant = m.IsVollLieferant;
+            vm.IsFunktionär = m.IsFunktionär;
+            vm.ContactViaPost = m.ContactViaPost;
+            vm.ContactViaEmail = m.ContactViaEmail;
+
+            Dictionary<int, int> deliveries;
+            using (var ctx = new AppDbContext()) {
+                var d1 = ctx.Deliveries.Where(d => d.Year == Utils.CurrentLastSeason && d.MgNr == m.MgNr);
+                var d2 = ctx.Deliveries.Where(d => d.Year == Utils.CurrentLastSeason - 1 && d.MgNr == m.MgNr);
+                vm.StatusDeliveriesLastSeason = $"Lieferungen ({Utils.CurrentLastSeason - 1}): {d2.Count():N0} ({d2.Sum(d => d.Parts.Count):N0}), {d2.SelectMany(d => d.Parts).Sum(p => p.Weight):N0} kg";
+                vm.StatusDeliveriesThisSeason = $"Lieferungen ({Utils.CurrentLastSeason}): {d1.Count():N0} ({d1.Sum(d => d.Parts.Count):N0}), {d1.SelectMany(d => d.Parts).Sum(p => p.Weight):N0} kg";
+                vm.StatusAreaCommitment = $"Gebundene Fläche: {m.ActiveAreaCommitments(ctx).Select(c => c.Area).Sum():N0} m²";
+                deliveries = ctx.Deliveries
+                  .Where(d => d.MgNr == m.MgNr)
+                  .SelectMany(d => d.Parts)
+                  .GroupBy(d => d.Year)
+                  .ToDictionary(g => g.Key, g => g.Sum(d => d.Weight));
+            }
+
+            vm.MemberHasEmail = m.EmailAddresses.Count > 0;
+            vm.MemberCanSendEmail = App.Config.Smtp != null && m.EmailAddresses.Count > 0;
+            vm.MemberHasDeliveries = Enumerable.Range(0, 9999).Select(i => deliveries.GetValueOrDefault(i, 0) > 0).ToList();
+        }
+
+        public static async Task<(List<string>, IQueryable<Member>, List<string>)> GetFilters(this MemberAdminViewModel vm, AppDbContext ctx) {
+            List<string> filterNames = [];
+            IQueryable<Member> memberQuery = ctx.Members;
+            if (vm.ShowOnlyActiveMembers) {
+                memberQuery = memberQuery.Where(m => m.IsActive);
+                filterNames.Add("aktive Mitglieder");
+            }
+
+            var filterMgNr = new List<int>();
+            var filterZwst = new List<string>();
+            var filterKgNr = new List<int>();
+            var filterLfbisNr = new List<string>();
+            var filterUstIdNr = new List<string>();
+            var filterAreaCom = new List<string>();
+
+            var filter = vm.TextFilter;
+            if (filter.Count > 0) {
+                var branches = await ctx.Branches.ToListAsync();
+                var mgnr = await ctx.Members.ToDictionaryAsync(m => m.MgNr.ToString(), m => m);
+                var kgs = await ctx.WbKgs.ToDictionaryAsync(k => k.AtKg.Name.ToLower(), k => k.AtKg);
+                var areaComs = await ctx.AreaCommitmentTypes.ToDictionaryAsync(t => $"{t.SortId}{t.AttrId}", t => t);
+
+                for (int i = 0; i < filter.Count; i++) {
+                    var e = filter[i];
+
+                    if (e.Length >= 5 && e.Length <= 10 && "funktionär".StartsWith(e, StringComparison.CurrentCultureIgnoreCase)) {
+                        memberQuery = memberQuery.Where(m => m.IsFunktionär);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("Funktionäre");
+                    } else if (e.Length >= 6 && e.Length <= 11 && e[0] == '!' && "funktionär".StartsWith(e[1..], StringComparison.CurrentCultureIgnoreCase)) {
+                        memberQuery = memberQuery.Where(m => !m.IsFunktionär);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("Nicht-Funktionäre");
+                    } else if (e.Equals("bio", StringComparison.CurrentCultureIgnoreCase)) {
+                        memberQuery = memberQuery.Where(m => m.IsOrganic);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("Bio-Betriebe");
+                    } else if (e.Equals("!bio", StringComparison.CurrentCultureIgnoreCase)) {
+                        memberQuery = memberQuery.Where(m => !m.IsOrganic);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("Nicht-Bio-Betriebe");
+                    } else if (e.Length >= 4 && e.Length <= 13 && "volllieferant".StartsWith(e, StringComparison.CurrentCultureIgnoreCase)) {
+                        memberQuery = memberQuery.Where(m => m.IsVollLieferant);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("Volllieferanten");
+                    } else if (e.Length >= 5 && e.Length <= 14 && e[0] == '!' && "volllieferant".StartsWith(e[1..], StringComparison.CurrentCultureIgnoreCase)) {
+                        memberQuery = memberQuery.Where(m => !m.IsVollLieferant);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("Nicht-Vollieferanten");
+                    } else if (e.Length >= 5 && e.Length <= 11 && "buchführend".StartsWith(e, StringComparison.CurrentCultureIgnoreCase)) {
+                        memberQuery = memberQuery.Where(m => m.IsBuchführend);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("buchführend");
+                    } else if (e.Length >= 6 && e.Length <= 12 && e[0] == '!' && "buchführend".StartsWith(e[1..], StringComparison.CurrentCultureIgnoreCase)) {
+                        memberQuery = memberQuery.Where(m => !m.IsBuchführend);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("pauschaliert");
+                    } else if (e.Length >= 8 && e.Length <= 12 && "pauschaliert".StartsWith(e, StringComparison.CurrentCultureIgnoreCase)) {
+                        memberQuery = memberQuery.Where(m => !m.IsBuchführend);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("pauschaliert");
+                    } else if (e.Length >= 9 && e.Length <= 13 && e[0] == '!' && "pauschaliert".StartsWith(e[1..], StringComparison.CurrentCultureIgnoreCase)) {
+                        memberQuery = memberQuery.Where(m => m.IsBuchführend);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("buchführend");
+                    } else if (e.All(char.IsAsciiDigit) && mgnr.ContainsKey(e)) {
+                        filterMgNr.Add(int.Parse(e));
+                        filter.RemoveAt(i--);
+                        filterNames.Add($"MgNr. {e}");
+                    } else if (kgs.TryGetValue(e, out var kg)) {
+                        filterKgNr.Add(kg.KgNr);
+                        filter.RemoveAt(i--);
+                        filterNames.Add($"Stammgemeinde {kg.Name}");
+                    } else if (e.StartsWith("zwst:")) {
+                        try {
+                            var branch = branches.Where(b => b.Name.StartsWith(e[5..], StringComparison.CurrentCultureIgnoreCase)).Single();
+                            filterZwst.Add(branch.ZwstId);
+                            filter.RemoveAt(i--);
+                            filterNames.Add($"Zweigstelle {branch.Name}");
+                        } catch (InvalidOperationException) { }
+                    } else if (e.StartsWith('+') && e[1..].All(char.IsAsciiDigit)) {
+                        memberQuery = memberQuery.Where(m => m.TelephoneNumbers.Any(t => t.Number.Replace(" ", "").StartsWith(e)));
+                        filter.RemoveAt(i--);
+                        filterNames.Add($"Tel.-Nr. {e}");
+                    } else if (areaComs.ContainsKey(e.ToUpper())) {
+                        filterAreaCom.Add(e.ToUpper());
+                        filter.RemoveAt(i--);
+                        filterNames.Add($"Flächenbindung {e.ToUpper()}");
+                    } else if (Validator.CheckLfbisNr(e)) {
+                        filterLfbisNr.Add(e);
+                        filter.RemoveAt(i--);
+                        filterNames.Add($"Betriebsnummer {e}");
+                    } else if (Validator.CheckUstIdNr(e.ToUpper())) {
+                        filterUstIdNr.Add(e.ToUpper());
+                        filter.RemoveAt(i--);
+                        filterNames.Add($"UID {e.ToUpper()}");
+                    } else if (e.Length > 2 && e.StartsWith('"') && e.EndsWith('"')) {
+                        filter[i] = e[1..^1];
+                    } else if (e.Length < 2) {
+                        filter.RemoveAt(i--);
+                    }
+                }
+
+                if (filterMgNr.Count > 0) memberQuery = memberQuery.Where(m => filterMgNr.Contains(m.MgNr));
+                if (filterKgNr.Count > 0) memberQuery = memberQuery.Where(m => m.DefaultKgNr != null && filterKgNr.Contains((int)m.DefaultKgNr));
+                if (filterZwst.Count > 0) memberQuery = memberQuery.Where(m => m.ZwstId != null && filterZwst.Contains(m.ZwstId));
+                if (filterAreaCom.Count > 0) memberQuery = memberQuery.Where(m => m.AreaCommitments.AsQueryable().Where(Utils.ActiveAreaCommitments()).Any(c => filterAreaCom.Contains(c.VtrgId)));
+                if (filterLfbisNr.Count > 0) memberQuery = memberQuery.Where(m => m.LfbisNr != null && filterLfbisNr.Contains(m.LfbisNr));
+                if (filterUstIdNr.Count > 0) memberQuery = memberQuery.Where(m => m.UstIdNr != null && filterUstIdNr.Contains(m.UstIdNr));
+            }
+
+            return (filterNames, memberQuery, filter);
+        }
+
+        public static async Task GenerateMemberDataSheet(Member m, ExportMode mode) {
+            Mouse.OverrideCursor = Cursors.AppStarting;
+            try {
+                using var ctx = new AppDbContext();
+                using var doc = new MemberDataSheet(m, ctx);
+                await Utils.ExportDocument(doc, mode, emailData: (m, MemberDataSheet.Name, "Im Anhang finden Sie das aktuelle Stammdatenblatt"));
+            } catch (Exception exc) {
+                MessageBox.Show(exc.Message, "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+            Mouse.OverrideCursor = null;
+        }
+
+        public static async Task GenerateDeliveryConfirmation(Member m, int year, ExportMode mode) {
+            Mouse.OverrideCursor = Cursors.AppStarting;
+            try {
+                var b = new Billing(year);
+                await b.FinishSeason();
+                await b.CalculateBuckets();
+                await App.HintContextChange();
+
+                using var ctx = new AppDbContext();
+                var data = await DeliveryConfirmationDeliveryData.ForMember(ctx.DeliveryParts, year, m);
+                using var doc = new DeliveryConfirmation(ctx, year, m, data);
+                await Utils.ExportDocument(doc, mode, emailData: (m, $"{DeliveryConfirmation.Name} {year}", $"Im Anhang finden Sie die Anlieferungsbestätigung {year}"));
+            } catch (Exception exc) {
+                MessageBox.Show(exc.Message, "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+            Mouse.OverrideCursor = null;
+        }
+
+        public static async Task GenerateCreditNote(Member m, int year, int avnr, ExportMode mode) {
+            Mouse.OverrideCursor = Cursors.AppStarting;
+            try {
+                using var ctx = new AppDbContext();
+                var v = (await ctx.PaymentVariants.FindAsync(year, avnr))!;
+                var data = await CreditNoteDeliveryData.ForPaymentVariant(ctx.CreditNoteDeliveryRows, ctx.Seasons, year, avnr);
+                var p = (await ctx.MemberPayments.FindAsync(year, avnr, m.MgNr))!;
+                var b = BillingData.FromJson((await ctx.PaymentVariants.FindAsync(year, avnr))!.Data);
+
+                using var doc = new CreditNote(ctx, p, data[m.MgNr],
+                    b.ConsiderContractPenalties, b.ConsiderTotalPenalty, b.ConsiderAutoBusinessShares, b.ConsiderCustomModifiers,
+                    await ctx.GetMemberUnderDelivery(year, m.MgNr));
+                await Utils.ExportDocument(doc, mode, emailData: (m, $"{CreditNote.Name} {v.Name}", $"Im Anhang finden Sie die Traubengutschrift {v.Name}"));
+            } catch (Exception exc) {
+                MessageBox.Show(exc.Message, "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+            Mouse.OverrideCursor = null;
+        }
+
+        public static async Task GenerateMemberList(this MemberAdminViewModel vm, int modeWho, ExportMode exportMode) {
+            using var ctx = new AppDbContext();
+            IQueryable<Member> query;
+            List<string> filterNames = [];
+            if (modeWho == 0) {
+                query = ctx.Members.Where(m => m.IsActive);
+                filterNames.Add("aktive Mitglieder");
+            } else if (modeWho == 1) {
+                var (f, q, _) = await vm.GetFilters(ctx);
+                query = q;
+                filterNames.AddRange(f);
+            } else {
+                query = ctx.Members;
+            }
+
+            if (vm.MemberListOrderByMgNr) {
+                query = query
+                    .OrderBy(m => m.Branch!.Name)
+                    .ThenBy(m => m.MgNr);
+            } else if (vm.MemberListOrderByName) {
+                query = query
+                    .OrderBy(m => m.Branch!.Name)
+                    .ThenBy(m => m.FamilyName)
+                    .ThenBy(m => m.GivenName)
+                    .ThenBy(m => m.MgNr);
+            } else if (vm.MemberListOrderByOrt) {
+                query = query
+                    .OrderBy(m => m.Branch!.Name)
+                    .ThenBy(m => m.DefaultWbKg!.AtKg.Name)
+                    .ThenBy(m => m.FamilyName)
+                    .ThenBy(m => m.GivenName)
+                    .ThenBy(m => m.MgNr);
+            }
+
+            if (exportMode == ExportMode.SaveList) {
+                var d = new SaveFileDialog() {
+                    FileName = $"{MemberList.Name}.ods",
+                    DefaultExt = "ods",
+                    Filter = "OpenDocument Format Spreadsheet (*.ods)|*.ods",
+                    Title = $"{MemberList.Name} speichern unter - Elwig"
+                };
+                if (d.ShowDialog() == true) {
+                    Mouse.OverrideCursor = Cursors.AppStarting;
+                    try {
+                        var data = await MemberListData.FromQuery(query, filterNames);
+                        using var ods = new OdsFile(d.FileName);
+                        await ods.AddTable(data);
+                    } catch (Exception exc) {
+                        MessageBox.Show(exc.Message, "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+                    }
+                    Mouse.OverrideCursor = null;
+                }
+            } else {
+                Mouse.OverrideCursor = Cursors.AppStarting;
+                try {
+                    var data = await MemberListData.FromQuery(query, filterNames);
+                    using var doc = new MemberList(string.Join(" / ", filterNames), data);
+                    await Utils.ExportDocument(doc, exportMode);
+                } catch (Exception exc) {
+                    MessageBox.Show(exc.Message, "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+                }
+                Mouse.OverrideCursor = null;
+            }
+        }
+
+        public static async Task<int> UpdateMember(this MemberAdminViewModel vm, int? oldMgNr) {
+            using var ctx = new AppDbContext();
+            var newMgNr = (int)vm.MgNr!;
+            var m = new Member {
+                MgNr = oldMgNr ?? newMgNr,
+                PredecessorMgNr = vm.PredecessorMgNr,
+                Prefix = string.IsNullOrEmpty(vm.Prefix) ? null : vm.Prefix,
+                GivenName = vm.GivenName!,
+                FamilyName = vm.FamilyName!,
+                Suffix = string.IsNullOrEmpty(vm.Suffix) ? null : vm.Suffix,
+                Birthday = string.IsNullOrEmpty(vm.Birthday) ? null : string.Join("-", vm.Birthday!.Split(".").Reverse()),
+                IsDeceased = vm.IsDeceased,
+                CountryNum = 40,  // Austria AT AUT
+                PostalDestId = vm.Ort!.Id,
+                Address = vm.Address!,
+
+                Iban = string.IsNullOrEmpty(vm.Iban) ? null : vm.Iban?.Replace(" ", ""),
+                Bic = string.IsNullOrEmpty(vm.Bic) ? null : vm.Bic,
+
+                UstIdNr = string.IsNullOrEmpty(vm.UstIdNr) ? null : vm.UstIdNr,
+                LfbisNr = string.IsNullOrEmpty(vm.LfbisNr) ? null : vm.LfbisNr,
+                IsBuchführend = vm.IsBuchführend,
+                IsOrganic = vm.IsOrganic,
+
+                EntryDateString = string.IsNullOrEmpty(vm.EntryDate) ? null : string.Join("-", vm.EntryDate.Split(".").Reverse()),
+                ExitDateString = string.IsNullOrEmpty(vm.ExitDate) ? null : string.Join("-", vm.ExitDate.Split(".").Reverse()),
+                BusinessShares = (int)vm.BusinessShares!,
+                AccountingNr = string.IsNullOrEmpty(vm.AccountingNr) ? null : vm.AccountingNr,
+                IsActive = vm.IsActive,
+                IsVollLieferant = vm.IsVollLieferant,
+                IsFunktionär = vm.IsFunktionär,
+                ZwstId = vm.Branch?.ZwstId,
+                DefaultKgNr = vm.DefaultKg?.KgNr,
+                Comment = string.IsNullOrEmpty(vm.Comment) ? null : vm.Comment,
+                ContactViaPost = vm.ContactViaPost,
+                ContactViaEmail = vm.ContactViaEmail,
+            };
+
+            if (oldMgNr != null) {
+                ctx.Update(m);
+            } else {
+                ctx.Add(m);
+            }
+
+            ctx.RemoveRange(ctx.BillingAddresses.Where(a => a.MgNr == oldMgNr));
+            if (vm.BillingOrt != null && vm.BillingName != null) {
+                var p = vm.BillingOrt;
+                ctx.Add(new BillingAddr {
+                    MgNr = m.MgNr,
+                    Name = vm.BillingName,
+                    Address = vm.BillingAddress ?? "",
+                    CountryNum = p.CountryNum,
+                    PostalDestId = p.Id,
+                });
+            }
+
+            ctx.RemoveRange(ctx.MemberTelephoneNrs.Where(t => t.MgNr == oldMgNr));
+            ctx.AddRange(vm.PhoneNrs
+                .Where(input => input.Number != null)
+                .Select((input, i) => new MemberTelNr {
+                    MgNr = m.MgNr,
+                    Nr = i + 1,
+                    Type = input.Type == -1 ? (input.Number!.StartsWith("+43 ") && input.Number![4] == '6' ? "mobile" : "landline") : vm.PhoneNrTypes[input.Type].Key,
+                    Number = input.Number!,
+                    Comment = input.Comment,
+                }));
+
+            ctx.RemoveRange(ctx.MemberEmailAddrs.Where(e => e.MgNr == oldMgNr));
+            ctx.AddRange(vm.EmailAddresses
+                .Where(input => input != null && input != "")
+                .Select((input, i) => new MemberEmailAddr {
+                    MgNr = m.MgNr,
+                    Nr = i + 1,
+                    Address = input!,
+                    Comment = null,
+                }));
+
+            await ctx.SaveChangesAsync();
+
+            if (vm.TransferPredecessorAreaComs is int year && m.PredecessorMgNr is int predecessor) {
+                var areaComs = await ctx.AreaCommitments
+                    .Where(c => c.MgNr == predecessor && (c.YearTo == null || c.YearTo >= year))
+                    .ToListAsync();
+
+                var fbNr = await ctx.NextFbNr();
+                ctx.AddRange(areaComs.Select((c, i) => new AreaCom {
+                    FbNr = fbNr + i,
+                    MgNr = m.MgNr,
+                    VtrgId = c.VtrgId,
+                    CultId = c.CultId,
+                    Area = c.Area,
+                    KgNr = c.KgNr,
+                    GstNr = c.GstNr,
+                    RdNr = c.RdNr,
+                    YearFrom = year,
+                    YearTo = c.YearTo,
+                }));
+
+                foreach (var ac in areaComs)
+                    ac.YearTo = year - 1;
+                ctx.UpdateRange(areaComs);
+                await ctx.SaveChangesAsync();
+            }
+            vm.TransferPredecessorAreaComs = null;
+
+            if (vm.CancelAreaComs is int yearTo) {
+                var areaComs = await ctx.AreaCommitments
+                    .Where(c => c.MgNr == m.MgNr && (c.YearTo == null || c.YearTo > yearTo))
+                    .ToListAsync();
+
+                foreach (var ac in areaComs)
+                    ac.YearTo = yearTo;
+                ctx.UpdateRange(areaComs);
+                await ctx.SaveChangesAsync();
+            }
+            vm.CancelAreaComs = null;
+
+            if (newMgNr != m.MgNr) {
+                await ctx.Database.ExecuteSqlAsync($"UPDATE member SET mgnr = {newMgNr} WHERE mgnr = {oldMgNr}");
+            }
+
+            await App.HintContextChange();
+
+            return newMgNr;
+        }
+    }
+}

Elwig/ViewModels/MemberAdminViewModel.cs

@@ -0,0 +1,163 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using Elwig.Helpers;
+using Elwig.Models.Entities;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Windows;
+
+namespace Elwig.ViewModels {
+    public partial class MemberAdminViewModel : ObservableObject {
+
+        public int? TransferPredecessorAreaComs = null;
+        public int? CancelAreaComs = null;
+
+        public ObservableCollection<KeyValuePair<string, string>> PhoneNrTypes { get; set; } = new(Utils.PhoneNrTypes);
+
+        [ObservableProperty]
+        private string? _searchQuery = "";
+        public List<string> TextFilter => [.. SearchQuery?.ToLower().Split(' ').ToList().FindAll(e => e.Length > 0)];
+
+        [ObservableProperty]
+        private bool _showOnlyActiveMembers;
+
+        [ObservableProperty]
+        private Member? _selectedMember;
+        [ObservableProperty]
+        private IEnumerable<Member> _members = [];
+
+        [ObservableProperty]
+        private bool _isMemberSelected;
+        [ObservableProperty]
+        private bool _memberHasEmail;
+        [ObservableProperty]
+        private bool _memberCanSendEmail;
+        [ObservableProperty]
+        private bool _enableMemberReferenceButton;
+        [ObservableProperty]
+        private bool _enableSearchInputs = true;
+        [ObservableProperty]
+        public IEnumerable<bool> _memberHasDeliveries = [ .. Enumerable.Range(0, 9999).Select(i => false) ];
+
+        [ObservableProperty]
+        private bool _memberListOrderByMgNr;
+        [ObservableProperty]
+        private bool _memberListOrderByName;
+        [ObservableProperty]
+        private bool _memberListOrderByOrt;
+
+        [ObservableProperty]
+        private string? _mgNrString;
+        public int? MgNr => int.TryParse(MgNrString, out var mgnr) ? mgnr : null;
+        [ObservableProperty]
+        private string? _predecessorMgNrString;
+        public int? PredecessorMgNr => int.TryParse(PredecessorMgNrString, out var mgnr) ? mgnr : null;
+        [ObservableProperty]
+        private string? _prefix;
+        [ObservableProperty]
+        private string? _givenName;
+        [ObservableProperty]
+        private string? _familyName;
+        [ObservableProperty]
+        private string? _suffix;
+        [ObservableProperty]
+        private string? _birthday;
+        [ObservableProperty]
+        private string? _age;
+        [ObservableProperty]
+        private bool _isDeceased;
+        [ObservableProperty]
+        private string? _address;
+        [ObservableProperty]
+        private string? _plzString;
+        public int? Plz => int.TryParse(PlzString, out var plz) ? plz : null;
+        [ObservableProperty]
+        private AT_PlzDest? _ort;
+        [ObservableProperty]
+        private IEnumerable<AT_PlzDest> _ortSource = [];
+
+        [ObservableProperty]
+        private string? _billingName;
+        [ObservableProperty]
+        private string? _billingAddress;
+        [ObservableProperty]
+        private string? _billingPlzString;
+        public int? BillingPlz => int.TryParse(BillingPlzString, out var plz) ? plz : null;
+        [ObservableProperty]
+        private AT_PlzDest? _billingOrt;
+        [ObservableProperty]
+        private IEnumerable<AT_PlzDest> _billingOrtSource = [];
+
+        [ObservableProperty]
+        private string? _iban;
+        [ObservableProperty]
+        private string? _bic;
+
+        [ObservableProperty]
+        private string? _ustIdNr;
+        [ObservableProperty]
+        private string? _lfbisNr;
+        [ObservableProperty]
+        private bool _isBuchführend;
+        [ObservableProperty]
+        private bool _isOrganic;
+
+        [ObservableProperty]
+        private string? _entryDate;
+        [ObservableProperty]
+        private string? _exitDate;
+        [ObservableProperty]
+        private string? _businessSharesString;
+        public int? BusinessShares => int.TryParse(BusinessSharesString, out var bs) ? bs : null;
+        [ObservableProperty]
+        private string? _accountingNr;
+        [ObservableProperty]
+        private bool _isActive;
+        [ObservableProperty]
+        private bool _isVollLieferant;
+        [ObservableProperty]
+        private bool _isFunktionär;
+        [ObservableProperty]
+        private Branch? _branch;
+        [ObservableProperty]
+        private IEnumerable<Branch> _branchSource = [];
+        [ObservableProperty]
+        private AT_Kg? _defaultKg;
+        [ObservableProperty]
+        private IEnumerable<AT_Kg> _defaultKgSource = [];
+        [ObservableProperty]
+        private string? _comment;
+        [ObservableProperty]
+        private bool _contactViaPost;
+        [ObservableProperty]
+        private bool _contactViaEmail;
+
+        public ObservableCollection<string?> EmailAddresses { get; private set; } = [null, null, null, null, null, null, null, null, null];
+
+        public partial class PhoneNr(int? type = null, string? number = null, string? comment = null) : ObservableObject {
+            [ObservableProperty]
+            public int _type = type ?? -1;
+            [ObservableProperty]
+            public string? _number = number;
+            [ObservableProperty]
+            public string? _comment = comment;
+        }
+        public ObservableCollection<PhoneNr> PhoneNrs { get; private set; } = [new(), new(), new(), new(), new(), new(), new(), new(), new()];
+
+        [ObservableProperty]
+        private string _statusMembers = "Mitglieder: -";
+        [ObservableProperty]
+        private string _statusBusinessShares = "Geschäftsanteile: -";
+        [ObservableProperty]
+        private string _statusDeliveriesLastSeason = "Lieferungen (letzte Saison): -";
+        [ObservableProperty]
+        private string _statusDeliveriesThisSeason = "Lieferungen (aktuelle Saison): -";
+        [ObservableProperty]
+        private string _statusAreaCommitment = "Gebundene Fläche: -";
+
+        [ObservableProperty]
+        private Visibility _controlButtonsVisibility = Visibility.Visible;
+        [ObservableProperty]
+        private Visibility _editingButtonsVisibility = Visibility.Hidden;
+    }
+}

Elwig/Windows/AdministrationWindow.cs

@@ -162,9 +162,9 @@ namespace Elwig.Windows {
                 if (input is TextBox tb && tb.Text.Length == 0) {
                     ControlUtils.SetInputInvalid(input);
                     Valid[input] = false;
-                } else if (input is ComboBox cb && cb.SelectedItem == null && cb.ItemsSource != null) {
+                } else if (input is ComboBox cb && cb.SelectedItem == null && cb.ItemsSource != null && cb.ItemsSource.Cast<object>().Any()) {
                     ControlUtils.SetInputInvalid(input);
-                } else if (input is ListBox lb && lb.SelectedItem == null && lb.ItemsSource != null) {
+                } else if (input is ListBox lb && lb.SelectedItem == null && lb.ItemsSource != null && lb.ItemsSource.Cast<object>().Any()) {
                     ControlUtils.SetInputInvalid(input);
                 } else if (input is CheckBox ckb && ckb.IsChecked != true) {
                     ControlUtils.SetInputInvalid(input);
@@ -271,16 +271,28 @@ namespace Elwig.Windows {
         }
 
         protected void ClearInputs(bool validate = true) {
-            foreach (var tb in TextBoxInputs)
+            foreach (var tb in TextBoxInputs) {
                 tb.Text = "";
-            foreach (var cb in ComboBoxInputs)
+                var binding = tb.GetBindingExpression(TextBox.TextProperty);
+                binding?.UpdateSource();
+            }
+            foreach (var cb in ComboBoxInputs) {
                 cb.SelectedItem = null;
+                var binding = cb.GetBindingExpression(ComboBox.SelectedItemProperty);
+                binding?.UpdateSource();
+            }
             foreach (var lb in ListBoxInputs)
                 lb.SelectedItems.Clear();
-            foreach (var cb in CheckBoxInputs)
+            foreach (var cb in CheckBoxInputs) {
                 cb.IsChecked = cb.IsThreeState ? null : false;
-            foreach (var rb in RadioButtonInputs)
+                var binding = cb.GetBindingExpression(CheckBox.IsCheckedProperty);
+                binding?.UpdateSource();
+            }
+            foreach (var rb in RadioButtonInputs) {
                 rb.IsChecked = rb.IsThreeState ? null : false;
+                var binding = rb.GetBindingExpression(RadioButton.IsCheckedProperty);
+                binding?.UpdateSource();
+            }
             if (validate) ValidateRequiredInputs();
         }
 
@@ -327,7 +339,7 @@ namespace Elwig.Windows {
         protected async Task UpdatePlz(TextBox plzInput, ComboBox ortInput) {
             var plzInputValid = Validator.CheckPlz(plzInput, RequiredInputs.Contains(plzInput)).IsValid;
 
-            List<AT_PlzDest>? list = null;
+            List<AT_PlzDest> list = [];
             if (plzInputValid && plzInput.Text.Length == 4) {
                 var plz = int.Parse(plzInput.Text);
                 using var ctx = new AppDbContext();
@@ -338,7 +350,7 @@ namespace Elwig.Windows {
             }
 
             ControlUtils.RenewItemsSource(ortInput, list);
-            if (list != null && ortInput.SelectedItem == null && list.Count == 1)
+            if (ortInput.SelectedItem == null && list.Count == 1)
                 ortInput.SelectedItem = list[0];
             UpdateComboBox(ortInput);
         }
@@ -444,9 +456,9 @@ namespace Elwig.Windows {
         private void UpdateComboBox(Control input) {
             bool valid = false;
             if (input is ComboBox cb) {
-                valid = cb.ItemsSource == null || cb.SelectedItem != null || !RequiredInputs.Contains(input);
+                valid = cb.ItemsSource == null || cb.SelectedItem != null || !RequiredInputs.Contains(input) || !cb.ItemsSource.Cast<object>().Any();
             } else if (input is ListBox lb) {
-                valid = lb.ItemsSource == null || lb.SelectedItem != null || !RequiredInputs.Contains(input);
+                valid = lb.ItemsSource == null || lb.SelectedItem != null || !RequiredInputs.Contains(input) || !lb.ItemsSource.Cast<object>().Any();
             }
             if (valid) {
                 ValidateInput(input, true);

Elwig/Windows/MemberAdminWindow.xaml

@@ -4,8 +4,12 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:local="clr-namespace:Elwig.Windows"
+        xmlns:vm="clr-namespace:Elwig.ViewModels"
         Title="Mitglieder - Elwig" Height="700" Width="1250" MinHeight="650" MinWidth="1150"
         Loaded="Window_Loaded">
+    <Window.DataContext>
+        <vm:MemberAdminViewModel/>
+    </Window.DataContext>
     <Window.Resources>
         <Style TargetType="Label">
             <Setter Property="HorizontalAlignment" Value="Left"/>
@@ -47,19 +51,19 @@
 
         <Menu Grid.ColumnSpan="3" BorderThickness="0,0,0,1" BorderBrush="LightGray" Background="White">
             <MenuItem Header="Kontaktieren">
-                <MenuItem x:Name="Menu_Contact_Email" Header="E-Mail senden..." IsEnabled="False"
+                <MenuItem x:Name="Menu_Contact_Email" Header="E-Mail senden..." IsEnabled="{Binding MemberHasEmail}"
                           Click="Menu_Contact_Email_Click"/>
-                <MenuItem x:Name="Menu_Contact_Letterhead" Header="Briefkopf drucken" IsEnabled="False"
+                <MenuItem x:Name="Menu_Contact_Letterhead" Header="Briefkopf drucken" IsEnabled="{Binding IsMemberSelected}"
                           Click="Menu_Contact_Letterhead_Click"/>
             </MenuItem>
             <MenuItem Header="Stammdatenblatt">
-                <MenuItem x:Name="Menu_MemberDataSheet_Show" Header="...anzeigen (PDF)" IsEnabled="False"
+                <MenuItem x:Name="Menu_MemberDataSheet_Show" Header="...anzeigen (PDF)" IsEnabled="{Binding IsMemberSelected}"
                           Click="Menu_MemberDataSheet_Show_Click" InputGestureText="Strg+P"/>
-                <MenuItem x:Name="Menu_MemberDataSheet_SavePdf" Header="...speichern... (PDF)" IsEnabled="False"
+                <MenuItem x:Name="Menu_MemberDataSheet_SavePdf" Header="...speichern... (PDF)" IsEnabled="{Binding IsMemberSelected}"
                           Click="Menu_MemberDataSheet_SavePdf_Click"/>
-                <MenuItem x:Name="Menu_MemberDataSheet_Print" Header="...drucken" IsEnabled="False"
+                <MenuItem x:Name="Menu_MemberDataSheet_Print" Header="...drucken" IsEnabled="{Binding IsMemberSelected}"
                           Click="Menu_MemberDataSheet_Print_Click" InputGestureText="Strg+Shift+P"/>
-                <MenuItem x:Name="Menu_MemberDataSheet_Email" Header="...per E-Mail schicken" IsEnabled="False"
+                <MenuItem x:Name="Menu_MemberDataSheet_Email" Header="...per E-Mail schicken" IsEnabled="{Binding MemberCanSendEmail}"
                           Click="Menu_MemberDataSheet_Email_Click"/>
             </MenuItem>
             <MenuItem Header="Anlieferungsbestätigung" x:Name="Menu_DeliveryConfirmation">
@@ -110,18 +114,21 @@
                 <MenuItem x:Name="Menu_List_PrintAll" Header="...mit allen drucken"
                           Click="Menu_List_PrintAll_Click"/>
                 <Separator/>
-                <MenuItem x:Name="Menu_List_OrderMgNr" Header="...nach MgNr. sortieren" IsCheckable="True" IsChecked="True"
+                <MenuItem x:Name="Menu_List_OrderMgNr" Header="...nach MgNr. sortieren"
+                          IsCheckable="True" IsChecked="{Binding MemberListOrderByMgNr, Mode=TwoWay}"
                           Click="Menu_List_Order_Click"/>
-                <MenuItem x:Name="Menu_List_OrderName" Header="...nach Nachname, Vorname sortieren" IsCheckable="True"
+                <MenuItem x:Name="Menu_List_OrderName" Header="...nach Nachname, Vorname sortieren"
+                          IsCheckable="True" IsChecked="{Binding MemberListOrderByName, Mode=TwoWay}"
                           Click="Menu_List_Order_Click"/>
-                <MenuItem x:Name="Menu_List_OrderOrt" Header="...nach Stamm-KG, Name sortieren" IsCheckable="True"
+                <MenuItem x:Name="Menu_List_OrderOrt" Header="...nach Stamm-KG, Name sortieren"
+                          IsCheckable="True" IsChecked="{Binding MemberListOrderByOrt, Mode=TwoWay}"
                           Click="Menu_List_Order_Click"/>
             </MenuItem>
         </Menu>
 
         <Grid Grid.Row="1" Margin="5,0,0,0">
             <Grid.RowDefinitions>
-                <RowDefinition Height="39"/>
+                <RowDefinition Height="35"/>
                 <RowDefinition Height="*"/>
                 <RowDefinition Height="42"/>
             </Grid.RowDefinitions>
@@ -131,7 +138,8 @@
                 <ColumnDefinition Width="*"/>
             </Grid.ColumnDefinitions>
 
-            <TextBox x:Name="SearchInput" Grid.ColumnSpan="3" Margin="5,7,145,0" IsReadOnly="False"
+            <TextBox x:Name="SearchInput" Text="{Binding SearchQuery, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" IsEnabled="{Binding EnableSearchInputs}"
+                     Grid.ColumnSpan="3" Margin="5,5,140,0"
                      TextChanged="SearchInput_TextChanged">
                 <TextBox.ToolTip>
                     <TextBlock>
@@ -157,9 +165,11 @@
                 </TextBox.ToolTip>
             </TextBox>
             <CheckBox x:Name="ActiveMemberInput" Content="Nur aktive anzeigen"
+                      IsChecked="{Binding ShowOnlyActiveMembers, Mode=TwoWay}" IsEnabled="{Binding EnableSearchInputs}"
                       Checked="ActiveMemberInput_Changed" Unchecked="ActiveMemberInput_Changed"
-                      HorizontalAlignment="Right" Margin="0,12,10,0" VerticalAlignment="Top" Grid.Column="1" Grid.ColumnSpan="2"/>
+                      HorizontalAlignment="Right" Margin="0,10,10,0" VerticalAlignment="Top" Grid.Column="1" Grid.ColumnSpan="2"/>
             <DataGrid x:Name="MemberList" AutoGenerateColumns="False" HeadersVisibility="Column" IsReadOnly="True" GridLinesVisibility="None" SelectionMode="Single"
+                      ItemsSource="{Binding Members, Mode=TwoWay}" SelectedItem="{Binding SelectedMember, Mode=TwoWay}"
                       CanUserDeleteRows="False" CanUserResizeRows="False" CanUserAddRows="False"
                       SelectionChanged="MemberList_SelectionChanged"
                       Margin="5,0,5,0" Grid.Row="1" FontSize="14" Grid.ColumnSpan="3">
@@ -184,21 +194,21 @@
                 </DataGrid.Columns>
             </DataGrid>
 
-            <Button x:Name="NewMemberButton" Content="Neu"
+            <Button x:Name="NewMemberButton" Content="Neu" Visibility="{Binding ControlButtonsVisibility}"
                     HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0" Grid.Row="2"
                     Click="NewMemberButton_Click">
                 <Button.ToolTip>
                     <TextBlock FontWeight="Bold">Alt+Einfg</TextBlock>
                 </Button.ToolTip>
             </Button>
-            <Button x:Name="EditMemberButton" Content="Bearbeiten" IsEnabled="False"
+            <Button x:Name="EditMemberButton" Content="Bearbeiten" IsEnabled="False" Visibility="{Binding ControlButtonsVisibility}"
                     HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,2.5,10" Grid.Column="1" Grid.Row="2"
                     Click="EditMemberButton_Click">
                 <Button.ToolTip>
                     <TextBlock FontWeight="Bold">Strg+B</TextBlock>
                 </Button.ToolTip>
             </Button>
-            <Button x:Name="DeleteMemberButton" Content="Löschen" IsEnabled="False"
+            <Button x:Name="DeleteMemberButton" Content="Löschen" IsEnabled="False" Visibility="{Binding ControlButtonsVisibility}"
                     HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,5,10" Grid.Column="2" Grid.Row="2"
                     Click="DeleteMemberButton_Click">
                 <Button.ToolTip>
@@ -206,21 +216,21 @@
                 </Button.ToolTip>
             </Button>
 
-            <Button x:Name="SaveButton" Content="Speichern" IsEnabled="False" Visibility="Hidden"
+            <Button x:Name="SaveButton" Content="Speichern" IsEnabled="False" Visibility="{Binding EditingButtonsVisibility}"
                     HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0" Grid.Row="2"
                     Click="SaveButton_Click">
                 <Button.ToolTip>
                     <TextBlock FontWeight="Bold">Strg+S</TextBlock>
                 </Button.ToolTip>
             </Button>
-            <Button x:Name="ResetButton" Content="Zurücksetzen" IsEnabled="False" Visibility="Hidden"
+            <Button x:Name="ResetButton" Content="Zurücksetzen" IsEnabled="False" Visibility="{Binding EditingButtonsVisibility}"
                     HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,2.5,10" Grid.Column="1" Grid.Row="2"
                     Click="ResetButton_Click">
                 <Button.ToolTip>
                     <TextBlock FontWeight="Bold">Strg+Z</TextBlock>
                 </Button.ToolTip>
             </Button>
-            <Button x:Name="CancelButton" Content="Abbrechen" IsEnabled="False" Visibility="Hidden" IsCancel="True"
+            <Button x:Name="CancelButton" Content="Abbrechen" IsEnabled="False" Visibility="{Binding EditingButtonsVisibility}" IsCancel="True"
                     HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,5,10" Grid.Column="2" Grid.Row="2"
                     Click="CancelButton_Click">
                 <Button.ToolTip>
@@ -254,51 +264,62 @@
                     </Grid.ColumnDefinitions>
 
                     <Label Content="MgNr.:" Margin="10,10,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="MgNrInput" Margin="0,10,0,0" Width="48" Grid.Column="1" TextAlignment="Right" HorizontalAlignment="Left"
+                    <TextBox x:Name="MgNrInput" Text="{Binding MgNrString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,10,0,0" Width="48" Grid.Column="1" TextAlignment="Right" HorizontalAlignment="Left"
                              TextChanged="MgNrInput_TextChanged" LostFocus="MgNrInput_LostFocus"/>
 
                     <Label Content="Vorg.:" Margin="10,10,0,0" Grid.Column="2"/>
-                    <TextBox x:Name="PredecessorMgNrInput" Margin="0,10,10,0" Width="48" Grid.Column="3" TextAlignment="Right" HorizontalAlignment="Left"
+                    <TextBox x:Name="PredecessorMgNrInput" Text="{Binding PredecessorMgNrString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,10,10,0" Width="48" Grid.Column="3" TextAlignment="Right" HorizontalAlignment="Left"
                              TextChanged="PredecessorMgNrInput_TextChanged" LostFocus="PredecessorMgNrInput_LostFocus"/>
                     <Button x:Name="MemberReferenceButton" Grid.Column="3" Height="25" Width="25" FontFamily="Segoe MDL2 Assets" Content="&#xEE35;" Padding="0,0,0,0"
-                            Margin="53,10,10,10" VerticalAlignment="Top" HorizontalAlignment="Left" IsEnabled="False" ToolTip="Zu Vorgänger springen"
+                            Margin="53,10,10,10" VerticalAlignment="Top" HorizontalAlignment="Left" IsEnabled="{Binding EnableMemberReferenceButton}" ToolTip="Zu Vorgänger springen"
                             Click="MemberReferenceButton_Click"/>
 
                     <Label Content="Präfix:" Margin="10,40,0,0" Grid.Column="2"/>
-                    <TextBox x:Name="PrefixInput" Margin="0,40,10,0" Grid.Column="3"
+                    <TextBox x:Name="PrefixInput" Text="{Binding Prefix, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,40,10,0" Grid.Column="3"
                              TextChanged="TextBox_TextChanged"/>
 
                     <Label Content="Vorname:" Margin="10,40,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="GivenNameInput" Margin="0,40,0,0" Grid.Column="1"
+                    <TextBox x:Name="GivenNameInput" Text="{Binding GivenName, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,40,0,0" Grid.Column="1"
                              TextChanged="TextBox_TextChanged"/>
 
                     <Label Content="Nachname:" Margin="10,70,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="FamilyNameInput" Margin="0,70,0,0" Grid.Column="1"
+                    <TextBox x:Name="FamilyNameInput" Text="{Binding FamilyName, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,70,0,0" Grid.Column="1"
                              TextChanged="TextBox_TextChanged"/>
 
                     <Label Content="Suffix:" Margin="10,70,0,0" Grid.Column="2"/>
-                    <TextBox x:Name="SuffixInput" Margin="0,70,10,0" Grid.Column="3"
+                    <TextBox x:Name="SuffixInput" Text="{Binding Suffix, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,70,10,0" Grid.Column="3"
                              TextChanged="TextBox_TextChanged"/>
 
                     <Label Content="Geburtstag:" Margin="10,100,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="BirthdayInput" Margin="0,100,0,0" Grid.Column="1" Width="78" TextAlignment="Right" HorizontalAlignment="Left"
+                    <TextBox x:Name="BirthdayInput" Text="{Binding Birthday, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,100,0,0" Grid.Column="1" Width="78" TextAlignment="Right" HorizontalAlignment="Left"
                              TextChanged="PartialDateInput_TextChanged" LostFocus="PartialDateInput_LostFocus"/>
 
                     <Label Content="Alter:" Margin="85,100,0,0" Grid.Column="1" Grid.ColumnSpan="3"/>
-                    <TextBlock x:Name="Age" Text="-" Margin="119,104,0,0" Grid.Column="1" Grid.ColumnSpan="3" TextWrapping="NoWrap" VerticalAlignment="Top"/>
+                    <TextBlock x:Name="Age" Text="{Binding Age, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                               Margin="119,104,0,0" Grid.Column="1" Grid.ColumnSpan="3" TextWrapping="NoWrap" VerticalAlignment="Top"/>
 
-                    <CheckBox x:Name="DeceasedInput" Content="Verstorben" IsEnabled="False"
+                    <CheckBox x:Name="DeceasedInput" Content="Verstorben" IsChecked="{Binding IsDeceased, Mode=TwoWay}"
                               Checked="CheckBox_Changed" Unchecked="CheckBox_Changed"
-                              Grid.Column="3" HorizontalAlignment="Left" Margin="0,105,0,0" VerticalAlignment="Top" IsChecked="False"/>
+                              Grid.Column="3" HorizontalAlignment="Left" Margin="0,105,0,0" VerticalAlignment="Top"/>
 
                     <Label Content="Adresse:" Margin="10,130,0,0"/>
-                    <TextBox x:Name="AddressInput" Margin="0,130,10,0" Grid.Column="1" Grid.ColumnSpan="3"
+                    <TextBox x:Name="AddressInput" Text="{Binding Address, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,130,10,0" Grid.Column="1" Grid.ColumnSpan="3"
                              TextChanged="TextBox_TextChanged"/>
 
                     <Label Content="PLZ/Ort:" Margin="10,160,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="PlzInput" Margin="0,160,0,0" Width="42" Grid.Column="1" HorizontalAlignment="Left"
+                    <TextBox x:Name="PlzInput" Margin="0,160,0,0" Text="{Binding PlzString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Width="42" Grid.Column="1" HorizontalAlignment="Left"
                              TextChanged="PlzInput_TextChanged" LostFocus="PlzInput_LostFocus" Tag="PLZ"/>
-                    <ComboBox x:Name="OrtInput" ItemTemplate="{StaticResource PostalDestTemplate}" TextSearch.TextPath="Ort.Name"
+                    <ComboBox x:Name="OrtInput" SelectedItem="{Binding Ort, Mode=TwoWay}" ItemsSource="{Binding OrtSource, Mode=TwoWay}"
+                              ItemTemplate="{StaticResource PostalDestTemplate}" TextSearch.TextPath="Ort.Name"
                               Margin="47,160,10,0" Grid.Column="1" Grid.ColumnSpan="3"/>
                 </Grid>
             </GroupBox>
@@ -311,93 +332,138 @@
                     </Grid.ColumnDefinitions>
 
                     <Label x:Name="EmailAddress1Label" Content="E-Mail-Adresse:" Margin="10,10,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="EmailAddress1Input" Margin="0,10,10,0" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="EmailAddress1Input" Text="{Binding EmailAddresses[0], Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,10,10,0" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="EmailAddressInput_TextChanged" LostFocus="EmailAddressInput_LostFocus"/>
 
                     <Label x:Name="EmailAddress2Label" Content="E-Mail-Adresse:" Margin="10,40,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="EmailAddress2Input" Margin="0,40,10,0" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="EmailAddress2Input" Text="{Binding EmailAddresses[1], Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,40,10,0" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="EmailAddressInput_TextChanged" LostFocus="EmailAddressInput_LostFocus"/>
 
                     <Label x:Name="EmailAddress3Label" Content="E-Mail-Adresse:" Margin="10,70,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="EmailAddress3Input" Margin="0,70,10,0" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="EmailAddress3Input" Text="{Binding EmailAddresses[2], Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,70,10,0" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="EmailAddressInput_TextChanged" LostFocus="EmailAddressInput_LostFocus"/>
 
                     <Label x:Name="EmailAddress4Label" Content="E-Mail-Adresse:" Margin="10,100,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="EmailAddress4Input" Margin="0,100,10,0" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="EmailAddress4Input" Text="{Binding EmailAddresses[3], Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,100,10,0" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="EmailAddressInput_TextChanged" LostFocus="EmailAddressInput_LostFocus"/>
 
                     <Label x:Name="EmailAddress5Label" Content="E-Mail-Adresse:" Margin="10,130,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="EmailAddress5Input" Margin="0,130,10,0" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="EmailAddress5Input" Text="{Binding EmailAddresses[4], Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,130,10,0" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="EmailAddressInput_TextChanged" LostFocus="EmailAddressInput_LostFocus"/>
 
                     <Label x:Name="EmailAddress6Label" Content="E-Mail-Adresse:" Margin="10,160,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="EmailAddress6Input" Margin="0,160,10,0" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="EmailAddress6Input" Text="{Binding EmailAddresses[5], Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,160,10,0" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="EmailAddressInput_TextChanged" LostFocus="EmailAddressInput_LostFocus"/>
 
                     <Label x:Name="EmailAddress7Label" Content="E-Mail-Adresse:" Margin="10,190,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="EmailAddress7Input" Margin="0,190,10,0" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="EmailAddress7Input" Text="{Binding EmailAddresses[6], Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,190,10,0" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="EmailAddressInput_TextChanged" LostFocus="EmailAddressInput_LostFocus"/>
 
                     <Label x:Name="EmailAddress8Label" Content="E-Mail-Adresse:" Margin="10,220,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="EmailAddress8Input" Margin="0,220,10,0" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="EmailAddress8Input" Text="{Binding EmailAddresses[7], Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,220,10,0" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="EmailAddressInput_TextChanged" LostFocus="EmailAddressInput_LostFocus"/>
 
                     <Label x:Name="EmailAddress9Label" Content="E-Mail-Adresse:" Margin="10,250,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="EmailAddress9Input" Margin="0,250,10,0" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="EmailAddress9Input" Text="{Binding EmailAddresses[8], Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,250,10,0" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="EmailAddressInput_TextChanged" LostFocus="EmailAddressInput_LostFocus"/>
 
-                    <ComboBox x:Name="PhoneNr1TypeInput" DisplayMemberPath="Value" Margin="6,70,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <ComboBox x:Name="PhoneNr1TypeInput" DisplayMemberPath="Value"
-                    <TextBox x:Name="PhoneNr1Input" Margin="0,70,5,0" Grid.Column="1"
+                              SelectedIndex="{Binding PhoneNrs[0].Type, Mode=TwoWay}" ItemsSource="{Binding PhoneNrTypes}"
+                              Margin="6,70,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <TextBox x:Name="PhoneNr1Input" Text="{Binding PhoneNrs[0].Number, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,70,5,0" Grid.Column="1"
                              TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
-                    <TextBox x:Name="PhoneNr1CommentInput" Margin="0,70,10,0" Grid.Column="2"
+                    <TextBox x:Name="PhoneNr1CommentInput" Text="{Binding PhoneNrs[0].Comment, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,70,10,0" Grid.Column="2"
                              TextChanged="TextBox_TextChanged"/>
 
-                    <ComboBox x:Name="PhoneNr2TypeInput" DisplayMemberPath="Value" Margin="6,100,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <ComboBox x:Name="PhoneNr2TypeInput" DisplayMemberPath="Value"
-                    <TextBox x:Name="PhoneNr2Input" Margin="0,100,5,0" Grid.Column="1"
+                              SelectedIndex="{Binding PhoneNrs[1].Type, Mode=TwoWay}" ItemsSource="{Binding PhoneNrTypes}"
+                              Margin="6,100,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <TextBox x:Name="PhoneNr2Input" Text="{Binding PhoneNrs[1].Number, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,100,5,0" Grid.Column="1"
                              TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
-                    <TextBox x:Name="PhoneNr2CommentInput" Margin="0,100,10,0" Grid.Column="2"
+                    <TextBox x:Name="PhoneNr2CommentInput" Text="{Binding PhoneNrs[1].Comment, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,100,10,0" Grid.Column="2"
                              TextChanged="TextBox_TextChanged"/>
 
-                    <ComboBox x:Name="PhoneNr3TypeInput" DisplayMemberPath="Value" Margin="6,130,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <ComboBox x:Name="PhoneNr3TypeInput" DisplayMemberPath="Value"
-                    <TextBox x:Name="PhoneNr3Input" Margin="0,130,5,0" Grid.Column="1"
+                              SelectedIndex="{Binding PhoneNrs[2].Type, Mode=TwoWay}" ItemsSource="{Binding PhoneNrTypes}"
+                              Margin="6,130,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <TextBox x:Name="PhoneNr3Input" Text="{Binding PhoneNrs[2].Number, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,130,5,0" Grid.Column="1"
                              TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
-                    <TextBox x:Name="PhoneNr3CommentInput" Margin="0,130,10,0" Grid.Column="2"
+                    <TextBox x:Name="PhoneNr3CommentInput" Text="{Binding PhoneNrs[2].Comment, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,130,10,0" Grid.Column="2"
                              TextChanged="TextBox_TextChanged"/>
 
-                    <ComboBox x:Name="PhoneNr4TypeInput" DisplayMemberPath="Value" Margin="6,160,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <ComboBox x:Name="PhoneNr4TypeInput" DisplayMemberPath="Value"
-                    <TextBox x:Name="PhoneNr4Input" Margin="0,160,5,0" Grid.Column="1"
+                              SelectedIndex="{Binding PhoneNrs[3].Type, Mode=TwoWay}" ItemsSource="{Binding PhoneNrTypes}"
+                              Margin="6,160,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <TextBox x:Name="PhoneNr4Input" Text="{Binding PhoneNrs[3].Number, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,160,5,0" Grid.Column="1"
                              TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
-                    <TextBox x:Name="PhoneNr4CommentInput" Margin="0,160,10,0" Grid.Column="2"
+                    <TextBox x:Name="PhoneNr4CommentInput" Text="{Binding PhoneNrs[3].Comment, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,160,10,0" Grid.Column="2"
                              TextChanged="TextBox_TextChanged"/>
 
-                    <ComboBox x:Name="PhoneNr5TypeInput" DisplayMemberPath="Value" Margin="6,190,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <ComboBox x:Name="PhoneNr5TypeInput" DisplayMemberPath="Value"
-                    <TextBox x:Name="PhoneNr5Input" Margin="0,190,5,0" Grid.Column="1"
+                              SelectedIndex="{Binding PhoneNrs[4].Type, Mode=TwoWay}" ItemsSource="{Binding PhoneNrTypes}"
+                              Margin="6,190,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <TextBox x:Name="PhoneNr5Input" Text="{Binding PhoneNrs[4].Number, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,190,5,0" Grid.Column="1"
                              TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
-                    <TextBox x:Name="PhoneNr5CommentInput" Margin="0,190,10,0" Grid.Column="2"
+                    <TextBox x:Name="PhoneNr5CommentInput" Text="{Binding PhoneNrs[4].Comment, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,190,10,0" Grid.Column="2"
                              TextChanged="TextBox_TextChanged"/>
 
-                    <ComboBox x:Name="PhoneNr6TypeInput" DisplayMemberPath="Value" Margin="6,220,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <ComboBox x:Name="PhoneNr6TypeInput" DisplayMemberPath="Value"
-                    <TextBox x:Name="PhoneNr6Input" Margin="0,220,5,0" Grid.Column="1"
+                              SelectedIndex="{Binding PhoneNrs[5].Type, Mode=TwoWay}" ItemsSource="{Binding PhoneNrTypes}"
+                              Margin="6,220,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <TextBox x:Name="PhoneNr6Input" Text="{Binding PhoneNrs[5].Number, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,220,5,0" Grid.Column="1"
                              TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
-                    <TextBox x:Name="PhoneNr6CommentInput" Margin="0,220,10,0" Grid.Column="2"
+                    <TextBox x:Name="PhoneNr6CommentInput" Text="{Binding PhoneNrs[5].Comment, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,220,10,0" Grid.Column="2"
                              TextChanged="TextBox_TextChanged"/>
 
-                    <ComboBox x:Name="PhoneNr7TypeInput" DisplayMemberPath="Value" Margin="6,250,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <ComboBox x:Name="PhoneNr7TypeInput" DisplayMemberPath="Value"
-                    <TextBox x:Name="PhoneNr7Input" Margin="0,250,5,0" Grid.Column="1"
+                              SelectedIndex="{Binding PhoneNrs[6].Type, Mode=TwoWay}" ItemsSource="{Binding PhoneNrTypes}"
+                              Margin="6,250,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <TextBox x:Name="PhoneNr7Input" Text="{Binding PhoneNrs[6].Number, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,250,5,0" Grid.Column="1"
                              TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
-                    <TextBox x:Name="PhoneNr7CommentInput" Margin="0,250,10,0" Grid.Column="2"
+                    <TextBox x:Name="PhoneNr7CommentInput" Text="{Binding PhoneNrs[6].Comment, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,250,10,0" Grid.Column="2"
                              TextChanged="TextBox_TextChanged"/>
 
-                    <ComboBox x:Name="PhoneNr8TypeInput" DisplayMemberPath="Value" Margin="6,280,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <ComboBox x:Name="PhoneNr8TypeInput" DisplayMemberPath="Value"
-                    <TextBox x:Name="PhoneNr8Input" Margin="0,280,5,0" Grid.Column="1"
+                              SelectedIndex="{Binding PhoneNrs[7].Type, Mode=TwoWay}" ItemsSource="{Binding PhoneNrTypes}"
+                              Margin="6,280,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <TextBox x:Name="PhoneNr8Input" Text="{Binding PhoneNrs[7].Number, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,280,5,0" Grid.Column="1"
                              TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
-                    <TextBox x:Name="PhoneNr8CommentInput" Margin="0,280,10,0" Grid.Column="2"
+                    <TextBox x:Name="PhoneNr8CommentInput" Text="{Binding PhoneNrs[7].Comment, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,280,10,0" Grid.Column="2"
                              TextChanged="TextBox_TextChanged"/>
 
-                    <ComboBox x:Name="PhoneNr9TypeInput" DisplayMemberPath="Value" Margin="6,310,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <ComboBox x:Name="PhoneNr9TypeInput" DisplayMemberPath="Value"
-                    <TextBox x:Name="PhoneNr9Input" Margin="0,310,5,0" Grid.Column="1"
+                              SelectedIndex="{Binding PhoneNrs[8].Type, Mode=TwoWay}" ItemsSource="{Binding PhoneNrTypes}"
+                              Margin="6,310,5,0" FontSize="12" Padding="6,4,4,4"/>
+                    <TextBox x:Name="PhoneNr9Input" Text="{Binding PhoneNrs[8].Number, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,310,5,0" Grid.Column="1"
                              TextChanged="PhoneNrInput_TextChanged" LostFocus="PhoneNrInput_LostFocus"/>
-                    <TextBox x:Name="PhoneNr9CommentInput" Margin="0,280,10,0" Grid.Column="2"
+                    <TextBox x:Name="PhoneNr9CommentInput" Text="{Binding PhoneNrs[8].Comment, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,280,10,0" Grid.Column="2"
                              TextChanged="TextBox_TextChanged"/>
                 </Grid>
             </GroupBox>
@@ -409,11 +475,13 @@
                     </Grid.ColumnDefinitions>
 
                     <Label Content="IBAN:" Margin="10,10,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="IbanInput" Margin="0,10,10,0" Grid.Column="1" Width="290" HorizontalAlignment="Left"
+                    <TextBox x:Name="IbanInput" Text="{Binding Iban, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,10,10,0" Grid.Column="1" Width="290" HorizontalAlignment="Left"
                              TextChanged="IbanInput_TextChanged" LostFocus="IbanInput_LostFocus"/>
 
                     <Label Content="BIC:" Margin="10,40,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="BicInput" Margin="0,40,10,0" Grid.Column="1" Width="150" HorizontalAlignment="Left"
+                    <TextBox x:Name="BicInput" Text="{Binding Bic, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,40,10,0" Grid.Column="1" Width="150" HorizontalAlignment="Left"
                              TextChanged="BicInput_TextChanged" LostFocus="BicInput_LostFocus"/>
                 </Grid>
             </GroupBox>
@@ -426,21 +494,24 @@
                     </Grid.ColumnDefinitions>
 
                     <Label Content="UID:" Margin="10,10,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="UstIdNrInput" Margin="0,10,10,0" Grid.Column="1" Width="96" HorizontalAlignment="Left"
+                    <TextBox x:Name="UstIdNrInput" Text="{Binding UstIdNr, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,10,10,0" Grid.Column="1" Width="96" HorizontalAlignment="Left"
                              TextChanged="UstIdNrInput_TextChanged" LostFocus="UstIdNrInput_LostFocus"/>
 
                     <Label Content="Betriebs-Nr.:" Margin="10,40,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="LfbisNrInput" Margin="0,40,10,0" Grid.Column="1" Width="64" HorizontalAlignment="Left" TextAlignment="Right"
+                    <TextBox x:Name="LfbisNrInput" Text="{Binding LfbisNr, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,40,10,0" Grid.Column="1" Width="64" HorizontalAlignment="Left" TextAlignment="Right"
                              TextChanged="LfbisNrInput_TextChanged" LostFocus="LfbisNrInput_LostFocus"/>
 
-                    <CheckBox x:Name="BuchführendInput" Content="Buchführend" IsEnabled="False"
+                    <CheckBox x:Name="BuchführendInput" Content="Buchführend" IsChecked="{Binding IsBuchführend, Mode=TwoWay}" IsEnabled="False"
                               Checked="CheckBox_Changed" Unchecked="CheckBox_Changed"
-                              Grid.Column="2" HorizontalAlignment="Left" Margin="10,15,0,0" VerticalAlignment="Top" IsChecked="False"/>
+                              Grid.Column="2" HorizontalAlignment="Left" Margin="10,15,0,0" VerticalAlignment="Top"/>
 
-                    <CheckBox x:Name="OrganicInput" Content="Bio" IsEnabled="False"
+                    <CheckBox x:Name="OrganicInput" Content="Bio" IsChecked="{Binding IsOrganic, Mode=TwoWay}" IsEnabled="False"
                               Checked="CheckBox_Changed" Unchecked="CheckBox_Changed"
-                              Grid.Column="2" HorizontalAlignment="Left" Margin="10,45,0,0" VerticalAlignment="Top" IsChecked="False"/>
+                              Grid.Column="2" HorizontalAlignment="Left" Margin="10,45,0,0" VerticalAlignment="Top"/>
-                    <Button x:Name="OrganicButton" Content="easy-cert.com" Height="25" FontSize="12" IsEnabled="False"
+                    <Button x:Name="OrganicButton" Content="easy-cert.com" IsEnabled="{Binding IsMemberSelected}"
+                            Height="25" FontSize="12"
                             Click="OrganicButton_Click"
                             Grid.Column="2" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="60,40,0,0"/>
                 </Grid>
@@ -453,17 +524,21 @@
                     </Grid.ColumnDefinitions>
 
                     <Label Content="Name:" Margin="10,10,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="BillingNameInput" Margin="0,10,10,10" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="BillingNameInput" Text="{Binding BillingName, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,10,10,10" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="TextBox_TextChanged"/>
 
                     <Label Content="Adresse:" Margin="10,40,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="BillingAddressInput" Margin="0,40,10,0" Grid.Column="1"
+                    <TextBox x:Name="BillingAddressInput" Text="{Binding BillingAddress, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,40,10,0" Grid.Column="1"
                              TextChanged="TextBox_TextChanged"/>
 
                     <Label Content="PLZ/Ort:" Margin="10,70,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="BillingPlzInput" Margin="0,70,0,0" Width="42" Grid.Column="1" HorizontalAlignment="Left"
+                    <TextBox x:Name="BillingPlzInput" Text="{Binding BillingPlzString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,70,0,0" Width="42" Grid.Column="1" HorizontalAlignment="Left"
                              TextChanged="PlzInput_TextChanged" LostFocus="PlzInput_LostFocus" Tag="PLZ"/>
-                    <ComboBox x:Name="BillingOrtInput" ItemTemplate="{StaticResource PostalDestTemplate}" TextSearch.TextPath="Ort.Name"
+                    <ComboBox x:Name="BillingOrtInput" SelectedItem="{Binding BillingOrt, Mode=TwoWay}" ItemsSource="{Binding BillingOrtSource, Mode=TwoWay}"
+                              ItemTemplate="{StaticResource PostalDestTemplate}" TextSearch.TextPath="Ort.Name"
                               Margin="47,70,10,0" Grid.Column="1"/>
                 </Grid>
             </GroupBox>
@@ -476,60 +551,69 @@
                     </Grid.ColumnDefinitions>
 
                     <Label Content="Eintritt:" Margin="10,10,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="EntryDateInput" Margin="0,10,10,0" Width="78" Grid.Column="1" HorizontalAlignment="Left" TextAlignment="Right"
+                    <TextBox x:Name="EntryDateInput" Text="{Binding EntryDate, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,10,10,0" Width="78" Grid.Column="1" HorizontalAlignment="Left" TextAlignment="Right"
                              TextChanged="DateInput_TextChanged" LostFocus="DateInput_LostFocus"/>
 
                     <Label Content="Austritt:" Margin="10,40,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="ExitDateInput" Margin="0,40,10,0" Width="78" Grid.Column="1" HorizontalAlignment="Left" TextAlignment="Right"
+                    <TextBox x:Name="ExitDateInput" Text="{Binding ExitDate, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,40,10,0" Width="78" Grid.Column="1" HorizontalAlignment="Left" TextAlignment="Right"
                              TextChanged="DateInput_TextChanged" LostFocus="DateInput_LostFocus"/>
 
                     <Label Content="Geschäftsanteile:" Margin="10,70,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="BusinessSharesInput" Margin="0,70,10,0" Width="48" Grid.Column="1" HorizontalAlignment="Left" TextAlignment="Right"
+                    <TextBox x:Name="BusinessSharesInput" Text="{Binding BusinessSharesString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,70,10,0" Width="48" Grid.Column="1" HorizontalAlignment="Left" TextAlignment="Right"
                              TextChanged="IntegerInput_TextChanged"/>
 
                     <Label Content="BH-Konto:" Margin="10,100,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="AccountingNrInput" Margin="0,100,10,0" Grid.Column="1"
+                    <TextBox x:Name="AccountingNrInput" Text="{Binding AccountingNr, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,100,10,0" Grid.Column="1"
                              TextChanged="TextBox_TextChanged"/>
 
-                    <CheckBox x:Name="ActiveInput" Content="Aktiv" IsEnabled="False"
+                    <CheckBox x:Name="ActiveInput" Content="Aktiv" IsChecked="{Binding IsActive, Mode=TwoWay}" IsEnabled="False"
                               Checked="ActiveInput_Changed" Unchecked="ActiveInput_Changed"
-                              Grid.Column="2" HorizontalAlignment="Left" Margin="10,15,0,0" VerticalAlignment="Top" IsChecked="False"/>
+                              Grid.Column="2" HorizontalAlignment="Left" Margin="10,15,0,0" VerticalAlignment="Top"/>
 
-                    <CheckBox x:Name="VollLieferantInput" Content="Volllieferant" IsEnabled="False"
+                    <CheckBox x:Name="VollLieferantInput" Content="Volllieferant" IsChecked="{Binding IsVollLieferant, Mode=TwoWay}" IsEnabled="False"
                               Checked="CheckBox_Changed" Unchecked="CheckBox_Changed"
-                              Grid.Column="2" HorizontalAlignment="Left" Margin="10,45,0,0" VerticalAlignment="Top" IsChecked="False"/>
+                              Grid.Column="2" HorizontalAlignment="Left" Margin="10,45,0,0" VerticalAlignment="Top"/>
 
-                    <CheckBox x:Name="FunkionärInput" Content="Funktionär" IsEnabled="False"
+                    <CheckBox x:Name="FunkionärInput" Content="Funktionär" IsChecked="{Binding IsFunktionär, Mode=TwoWay}" IsEnabled="False"
                               Checked="CheckBox_Changed" Unchecked="CheckBox_Changed"
-                              Grid.Column="2" HorizontalAlignment="Left" Margin="10,75,0,0" VerticalAlignment="Top" IsChecked="False"/>
+                              Grid.Column="2" HorizontalAlignment="Left" Margin="10,75,0,0" VerticalAlignment="Top"/>
 
                     <Label Content="Stamm-Zwst.:" Margin="10,130,0,0" Grid.Column="0"/>
-                    <ComboBox x:Name="BranchInput" DisplayMemberPath="Name" TextSearch.TextPath="Name"
+                    <ComboBox x:Name="BranchInput" SelectedItem="{Binding Branch, Mode=TwoWay}" ItemsSource="{Binding BranchSource, Mode=TwoWay}"
+                              DisplayMemberPath="Name" TextSearch.TextPath="Name"
                               Margin="0,130,10,0" Grid.Column="1" Grid.ColumnSpan="2"/>
 
                     <Label Content="Stammgemeinde:" Margin="10,160,0,0" Grid.Column="0"/>
-                    <ComboBox x:Name="DefaultKgInput" DisplayMemberPath="Name" TextSearch.TextPath="Name"
+                    <ComboBox x:Name="DefaultKgInput" SelectedItem="{Binding DefaultKg, Mode=TwoWay}" ItemsSource="{Binding DefaultKgSource, Mode=TwoWay}"
+                              DisplayMemberPath="Name" TextSearch.TextPath="Name"
                               Margin="0,160,40,10" Grid.Column="1" Grid.ColumnSpan="2"/>
                     <Button x:Name="KgDetailsButton" Content="&#xE712;" FontFamily="Segoe MDL2 Assets" FontSize="14" Padding="0,1,0,0"
                             Click="KgDetailsButton_Click"
                             Grid.Column="2" VerticalAlignment="Top" HorizontalAlignment="Right" Width="25" Height="25" Margin="10,160,10,10"/>
 
                     <Label Content="Anmerkung:" Margin="10,190,0,0" Grid.Column="0"/>
-                    <TextBox x:Name="CommentInput" Margin="0,190,10,70" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBox x:Name="CommentInput" Text="{Binding Comment, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                             Margin="0,190,10,70" Grid.Column="1" Grid.ColumnSpan="2"
                              TextChanged="TextBox_TextChanged"
                              VerticalAlignment="Stretch" Height="auto" AcceptsReturn="True" TextWrapping="Wrap" VerticalScrollBarVisibility="Visible"/>
 
                     <Label Content="Kontaktart:" Margin="10,10,0,10" Grid.Column="0" VerticalAlignment="Bottom"/>
-                    <CheckBox x:Name="ContactPostalInput" Content="Post" IsEnabled="False"
+                    <CheckBox x:Name="ContactPostalInput" Content="Post" IsChecked="{Binding ContactViaPost, Mode=TwoWay}" IsEnabled="False"
                               Checked="CheckBox_Changed" Unchecked="CheckBox_Changed"
                               HorizontalAlignment="Left" Margin="0,0,0,15" VerticalAlignment="Bottom" Grid.Column="1" Grid.ColumnSpan="2"/>
-                    <CheckBox x:Name="ContactEmailInput" Content="E-Mail" IsEnabled="False"
+                    <CheckBox x:Name="ContactEmailInput" Content="E-Mail" IsChecked="{Binding ContactViaEmail, Mode=TwoWay}" IsEnabled="False"
                               Checked="ContactEmailInput_Changed" Unchecked="ContactEmailInput_Changed"
                               HorizontalAlignment="Left" Margin="60,0,0,15" VerticalAlignment="Bottom" Grid.Column="1" Grid.ColumnSpan="2"/>
 
-                    <Button x:Name="DeliveryButton" Content="Lieferungen" Click="DeliveryButton_Click" IsEnabled="False"
+                    <Button x:Name="DeliveryButton" Content="Lieferungen" IsEnabled="{Binding IsMemberSelected}"
+                            Click="DeliveryButton_Click"
                             HorizontalAlignment="Right" Margin="10,00,10,37" Width="150" VerticalAlignment="Bottom" Grid.ColumnSpan="3"/>
-                    <Button x:Name="AreaCommitmentButton" Content="Flächenbindungen" Click="AreaCommitmentButton_Click" IsEnabled="False"
+                    <Button x:Name="AreaCommitmentButton" Content="Flächenbindungen" IsEnabled="{Binding IsMemberSelected}"
+                            Click="AreaCommitmentButton_Click"
                             HorizontalAlignment="Right" Margin="10,10,10,5" Width="150" VerticalAlignment="Bottom" Grid.ColumnSpan="3"/>
                 </Grid>
             </GroupBox>
@@ -554,23 +638,23 @@
                 </ItemsPanelTemplate>
             </StatusBar.ItemsPanel>
             <StatusBarItem>
-                <TextBlock Name="StatusMembers" Text="Mitglieder: -"/>
+                <TextBlock Name="StatusMembers" Text="{Binding StatusMembers}"/>
             </StatusBarItem>
             <Separator Grid.Column="1"/>
             <StatusBarItem Grid.Column="2">
-                <TextBlock Name="StatusBusinessShares" Text="Geschäftsanteile: -"/>
+                <TextBlock Name="StatusBusinessShares" Text="{Binding StatusBusinessShares}"/>
             </StatusBarItem>
             <Separator Grid.Column="3"/>
             <StatusBarItem Grid.Column="4">
-                <TextBlock Name="StatusAreaCommitment" Text="Gebundene Fläche: -"/>
+                <TextBlock Name="StatusAreaCommitment" Text="{Binding StatusAreaCommitment}"/>
             </StatusBarItem>
             <Separator Grid.Column="5"/>
             <StatusBarItem Grid.Column="6">
-                <TextBlock Name="StatusDeliveriesLastSeason" Text="Lieferungen (letzte Saison): -"/>
+                <TextBlock Name="StatusDeliveriesLastSeason" Text="{Binding StatusDeliveriesLastSeason}"/>
             </StatusBarItem>
             <Separator Grid.Column="7"/>
             <StatusBarItem Grid.Column="8">
-                <TextBlock Name="StatusDeliveriesThisSeason" Text="Lieferungen (aktuelle Saison): -"/>
+                <TextBlock Name="StatusDeliveriesThisSeason" Text="{Binding StatusDeliveriesThisSeason}"/>
             </StatusBarItem>
         </StatusBar>
     </Grid>