I have two repeater webparts. Webpart B has Updatepanel. Webpart A in its transformation contains some buttons as trigger of webpart B's Updatepanel which update repeater of Web part B on category. I have changed code behide of webpart A to do that.
Now my problem is when I update webpart B and it has content, it works fine but when it has no content, repeater shows previous content not empty content.