public override void UpdateOperations()
{
base.Operations = new Collection <MenuItemViewModel>();
if (this.SelectedItems.Count == 1)
{
TreeNodeViewModel node = this.SelectedItems[0] as TreeNodeViewModel;
if (node != null)
{
// bring tree here
MenuItemViewModel mvBTH = new MenuItemViewModel(this.ViewModelStore, "Bring tree here");
mvBTH.Command = BringTreeHereCommand;
mvBTH.IsEnabled = ModelTreeOperations.CanBringTreeHere(node.TreeNode);
base.Operations.Add(mvBTH);
// split tree
MenuItemViewModel mvSplit = new MenuItemViewModel(this.ViewModelStore, "Split tree");
mvSplit.Command = SplitTreeCommand;
mvSplit.IsEnabled = ModelTreeOperations.CanSplitTree(node.TreeNode);
base.Operations.Add(mvSplit);
}
}
this.OnPropertyChanged("Operations");
}
