Rename solution directory to Elwig

Elwig/Windows/ContractListWindow.xaml.cs

@@ -0,0 +1,30 @@
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+using Elwig.Helpers;
+using Elwig.Models;
+
+namespace Elwig.Windows {
+    public partial class ContractListWindow : Window {
+        private readonly AppDbContext Context = new();
+
+        public ContractListWindow(Member member) {
+            InitializeComponent();
+        }
+
+        private void RefreshContractList() {
+            Context.Members.Load();
+            List<Contract> contracts = Context.Contracts.OrderBy(c => c.MgNr).ToList();
+
+            ContractList.ItemsSource = contracts;
+            if (contracts.Count == 1)
+                ContractList.SelectedIndex = 0;
+        }
+
+        private void ContractList_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
+            RefreshContractList();
+        }
+    }
+}