[#9] MemberAdminWindow: Add "Bio-Knopf"

Elwig/Windows/MemberAdminWindow.xaml.cs

@@ -11,6 +11,7 @@ using System.Threading.Tasks;
 using Microsoft.EntityFrameworkCore.ChangeTracking;
 using System.Collections.ObjectModel;
 using Elwig.Documents;
+using System.Diagnostics;
 
 namespace Elwig.Windows {
     public partial class MemberAdminWindow : AdministrationWindow {
@@ -187,12 +188,14 @@ namespace Elwig.Windows {
                 DeleteMemberButton.IsEnabled = true;
                 AreaCommitmentButton.IsEnabled = true;
                 DeliveryButton.IsEnabled = true;
+                OrganicButton.IsEnabled = true;
                 FillInputs(m);
             } else {
                 EditMemberButton.IsEnabled = false;
                 DeleteMemberButton.IsEnabled = false;
                 AreaCommitmentButton.IsEnabled = false;
                 DeliveryButton.IsEnabled = false;
+                OrganicButton.IsEnabled = false;
                 ClearOriginalValues();
                 ClearDefaultValues();
                 ClearInputs(validate);
@@ -791,5 +794,17 @@ namespace Elwig.Windows {
                 App.FocusOriginHierarchy();
             }
         }
+
+        private void OrganicButton_Click(object sender, RoutedEventArgs evt) {
+            if (MemberList.SelectedItem is not Member m)
+                return;
+            var url = "https://www.easy-cert.com/htm/suchergebnis.htm?" +
+                //$"CustomerNumber={m.LfbisNr}&" +
+                $"Name={(m.BillingAddress?.Name ?? m.Name).Replace(' ', '+')}&" +
+                $"PostalCode={(m.BillingAddress?.PostalDest ?? m.PostalDest).AtPlz?.Plz}";
+            Process.Start(new ProcessStartInfo(url) {
+                UseShellExecute = true,
+            });
+        }
     }
 }