I have a RadPaneGroup and RadTreeview, I compare a RadTreeViewItem Header Header with the RadPane Header and close the RadPane when RadTreeViewItem is selected. How do I? TreeViewPanels<telerik:RadTreeView x:Name="tvConfiguracao"IsOptionElementsEnabled="True"Checked="tvConfiguracao_Checked"<telerik:RadTreeViewItem x:Name="tviVenda"Header="VENDA"/><telerik:RadTreeViewItem x:Name="tviCompra"Header="COMPRA /></telerik:RadTreeView>Event<telerik:RadDocking x:Name="rdPrincipal"<telerik:RadSplitContainer InitialPosition="DockedBottom"><telerik:RadPaneGroup x:Name="rpgFiltros"<telerik:RadPane x:Name="RadPaneCompra"Header="COMPRA"> </telerik:RadPane><telerik:RadPane x:Name="RadPaneVenda"Header="Venda"> </telerik:RadPane></telerik:RadPaneGroup></telerik:RadSplitContainer></telerik:RadDocking>Finds no Pane Even with Header, what is wrong?privatevoidtvConfiguracao_Checked(objectsender, Telerik.Windows.RadRoutedEventArgs e){var item = rdPrincipal.Panes.FirstOrDefault(i => i.Header == e.Source.Cast<RadTreeViewItem>().Header);if(item !=null)item.Cast<RadPane>().IsHidden =true;}