Add files via upload

src/TestFriendModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Input;
+using Kalakoi.Xbox.OpenXBL;
+
+namespace Kalakoi.Xbox.App
+{
+    public abstract class TestFriendModel : ModelBase
+    {
+        private List<Friend> _friendsList;
+        private int _selectedFriendIndex;
+
+        public List<Friend> FriendsList
+        {
+            get { return _friendsList; }
+            set { SetProperty(ref _friendsList, value, nameof(FriendsList)); SelectedFriendIndex = -1; }
+        }
+        public int SelectedFriendIndex
+        {
+            get { return _selectedFriendIndex; }
+            set { SetProperty(ref _selectedFriendIndex, value, nameof(SelectedFriendIndex)); }
+        }
+    }
+}