I want to save the state of a control from the client. My use case can be seen in one of your demos. http://demos.telerik.com/aspnet-ajax/tabstrip/examples/application-scenarios/persisting-tabstrip-settings/defaultcs.aspx?product=persistenceframework

I want to save the selected tab when its been clicked, this way the user does not have to click on some other button or remember to do that.  

I also don't want an OnTabClick event to happen on the server to slow things down.