I'm trying to fill a textbox or a lable (server side components) in any event e.g (Edit or delete) but it seems I can have lable1.text = "aaaaaaa"; does not do anything. Calander and textbox are in the same updatepanle, I have a feeling if I try to do this inside the daypilotcalander event it doesnt work. Am I miss anything? can anybody help???