I have an aspx page in which I am loading 2 Radpageviews in form of tabs using RadTabstrip and RadMultiPageView. I want to add Input validation on a control present on one of the pageviews. When I do so using traditional methods, My tabstrip stops working and it does not switch on clicking on different tabs. It works fine if I don't add the inputmanager. Please Help me out to identify where I am going wrong.