Please note that hiding the SplitBar would remove the user's interface for opening the pane again, so you would have to do it programmatically or remove the "display: none" property.
All the best,
Marin
the Telerik team
Registration for Q1 2011 What’s New Webinar Week is now open. Mark your calendar for the week starting March 21st and book your seat for a walk through all the exciting stuff we ship with the new release!