[FIX] made mainwindow MVVM

Client/ViewModels/ViewModel.cs

@@ -7,6 +7,8 @@ using System.Windows.Input;
 using SharedClientServer;
 using System.Diagnostics;
 using System.Windows;
+using System.Collections.ObjectModel;
+using Client.Views;
 
 namespace Client
 {
@@ -17,16 +19,12 @@ namespace Client
         public ICommand OnHostButtonClick { get; set; }
         public ICommand JoinSelectedLobby { get; set; }
 
+        public Lobby SelectedLobby { get; set; }
+
         public ViewModel()
         {
             _model = new Model();
-
-            ButtonCommand = new RelayCommand(() =>
-            {
-                
-            }, true);
-
-            _lobbies = new List<Lobby>();
+            _lobbies = new ObservableCollection<Lobby>();
 
             _lobbies.Add(new Lobby(50, 3, 8));
             _lobbies.Add(new Lobby(69, 1, 9));
@@ -39,9 +37,13 @@ namespace Client
 
             JoinSelectedLobby = new RelayCommand(() =>
             {
+                if (SelectedLobby != null)
+                {
+                    GameWindow window = new GameWindow();
+                    window.Show();
+                }
                 
-                Debug.WriteLine("Joining selected lobby");
-            });
+            }, true);
         }
 
         private void ClickCheck()
@@ -52,7 +54,6 @@ namespace Client
             _model.Numbers = _model.Numbers + 5;
         }
 
-        public ICommand ButtonCommand { get; set; }
 
 
         private Model _model;
@@ -69,8 +70,8 @@ namespace Client
             }
         }
 
-        private List<Lobby> _lobbies;
-        public List<Lobby> Lobbies
+        private ObservableCollection<Lobby> _lobbies;
+        public ObservableCollection<Lobby> Lobbies
         {
             get { return _lobbies; }
             set { _lobbies = value; }