void initContextMenu() { ContextMenu = new ContextMenu(); ContextMenu.BeginInit(); ContextMenu.ItemsSource = new MenuItem[] { new MenuItem() { Header = "Copy", Command = new RelayCommand(this_Copy, this_CanCopy) }, new MenuItem() { Header = "Paste", Command = new RelayCommand(this_Paste, this_CanPaste) }, }; ContextMenu.EndInit(); }