How to: Display the Customization Window
This example shows how to invoke the customization window. To do this, call the ASPxClientTreeList.ShowCustomizationWindow method. To hide this window, use the ASPxClientTreeList.HideCustomizationWindow method. Note that the TreeListSettingsCustomizationWindow.Enabled options should be turned on.
<ClientSideEvents Click="function(s, e) {
if(!treeList.IsCustomizationWindowVisible()) {
treeList.ShowCustomizationWindow();
e.proceessOnServer = false;
}
}"></ClientSideEvents>