Is there any way to force a UI element such as RadListBox to have the red border and red tooltip with error message?. In my particular case I'm not using binding to a data source, but am changing and reacting to the selected items programmatically. This means that UpdateSource won't work.
Thanks!
Mike Maddux
P.S. Using Rad Tools for Silverlight 4 beta.
Thanks!
Mike Maddux
P.S. Using Rad Tools for Silverlight 4 beta.