Overriding TreeViewDragCue class

[Paul Brun]

For our project, we described to create a custom DragCue class that extends from TreeViewDragCue. Only purpose at this point was because of the name and for it to make sense from a development perspective. As an example, I created a class like this:

public class MyDragCue : TreeViewDragCue
{
    public MyDragCue ()
        : base()
    {

    }
}

I used it in my OnDragQuery event for my RadTreeView (using the RadDragAndDropManager) in the following fashion:

void OnDragQuery(object sender, DragDropQueryEventArgs e)
{
    if (e.Options.Status == DragStatus.DragQuery)
    {
        e.Options.Payload = ctlSystemTreeView.SelectedItem;

        //Set up a drag cue
        MyDragCue cue = new MyDragCue();
        cue.ItemTemplate = ctlSystemTreeView.ItemTemplate;
        e.Options.DragCue = cue;
    }
    e.QueryResult = true;
    e.Handled = true;
}

however, when I do the following in my OnDropQuery event based on the TreeView, I end up getting a NULL value for the DragCue when I do the following:

MyDragCue cue = e.Options.DragCue as MyDragCue;

Yet, I have no problem, if I do the following: TreeViewDragCue cue = e.Options.DragCue as TreeViewDragCue;

Thoughts?

Paul

[Paul Brun]

it appears I have yet again resolved my own issue.

Paul