Controls Displaying 2 Times when using Ajax UpdatePanel...

Question

Hi I Have 2 DropdownLists on my Form Second One Should Update Based on First One and i Used AsyncPostBackTrigger For Partial Updation of these 2 controls....when im trying to selet the value from first dropdownlist the two dropdownlists displaying 2 times(2 times on design which are in update panel ) on my form ....... What is the Solution or Cause of My Problem???????? Otherwise How to update How to update 2 Dropdownlists without refeshing the page without ajax or in any other way..... Thanks In Advance.....

Pankaj Pandey · Answer

please bind add dropdown list withine if(!Page.Ispostback) { bind ddl1 bind ddl2 } It prevent to bind a item from two times. I got your pb in given manner.. if u are facing another pb then please explain a little deep with code...i'll suggest you where is pb.