I have a page with a splitter (Horizontal) Top & Bottom. The bottom page contains a RadPane with an ID="Main" and the ContentUrl defaulted to a specific page. from the Top Pane I have the Rad Toolbar with a Button that I have set the NavigateUrl to another page and the Target="Main", but when you click the button it redirects the entire window to that page not the RadPane (ID="Main"). I know I could catch this in the Post back event and set the ContentUrl via Code but I would rather not have the PostBack.