public MainWindow() { InitializeComponent(); CreatePropertyGrid(); DataContext = new MockViewModel(); //var dockableContent = new DockableContent() { Title = "Test", Content = new TextBox() }; //dockableContent.Show(DockManager, AnchorStyle.Bottom); //var dockableContent2 = new DockableContent() { Title = "Test2", Content = new TextBox() }; //dockableContent.ContainerPane.Items.Add(dockableContent2); //for (int i = 0; i < 20; i++) // OnCreateNewDocumentContent(null, null); }