I am using a TreeView control in a form that is called by another form. After some experimenting I have discovered that if the calling form has WindowType = modal, the TreeView control in the called form is unresponsive. I can populate it, but it doesn't respond to mouse or keyboard actions. If I change the WindowType of the calling form to modeless, the TreeView control behaves properly.

Does anyone know if it is possible to get the TreeView control to work properly when placed on a form that is called by another form whose WindowType is modal?

Thanks,
Jim