public TPayload GetAncestorPayload <TPayload>()
{
TreeNodeViewModel ancestor = this.Parent;
while (ancestor != null)
{
if (ancestor.NodePayload is TPayload payload)
{
return(payload);
}
ancestor = ancestor.Parent;
}
return(default);
private void TreeView_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (e.ClickCount > 1) // check if it is double click
{
e.Handled = true;
TreeNodeViewModel viewModel = this.DataContext as TreeNodeViewModel;
if (viewModel == null)
{
return;
}
TreeView item = sender as TreeView;
if (item == null)
{
return;
}
if (item.SelectedItem == null)
{
return;
}
//viewModel.TreeViewDoubleClickCommand.Execute(item.SelectedItem);
}
}
