I m using silverlight 3.0 beta version.When I m float the Radpane and click the CLOSE(X) Button of the Radpane folowing error occurs.
"Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))"
<RadDock:RadSplitContainer InitialPosition="DockedTop" x:Name="st" MinHeight="255">
<RadDock:RadPaneGroup HorizontalAlignment="Left">
<RadDock:RadPane CanDockInDocumentHost="False" CanUserClose="False" x:Name="paneDates" CanFloat = “True”>
</RadDock:RadPane>
</RadDock:RadPaneGroup>
</RadDock:RadSplitContainer>