In general you can use this approach in order to hide the title bar row (oWindow
is the client-side RadWindow object):
titleBar = oWindow.GetTitlebar();
The full solution, however, depends on how do you use the RadWindow control. Do you use its NavigateUrl property (which causes the content to be loaded in an IFRAME) or its ContentTemplate inner property (in this case a DIV is rendered that wraps the content)?
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