This is the first time i'm using RadScheduler and i'm uising ObjectDataSource to populate the scheduler. I've created two class files in App_Code folder ("AppointmentList.cs" and "AppointmentInfo.cs") and connected to scheduler successfully. my problem is i need to filter the data coming to scheduler using few combo box values already in the page. not sure how to pass these values through to the "AllData()" method in "AppointmentList" class.