"tribbles" wrote:

> I have a designer surface that allows several custom user controls to
> be used on it. I have created a new user control which is a container
> that needs to only allow a few of the possible controls choices to be
> placed in it.
>
> I've experimented with a ParentControlDesigner and found that the
> various 'Can...' methods works with paste commands and moving of objects
> already on the design surface, but not with an item being dropped from
> the Toolbox. I've tried an OnDragEnter to disallow a drop, but again,
> it has no effect on toolbox items that are dropped.
>
> How do you get the toolbox drag to recognize that a drop is disallowed?
>