Hi all

                 i am using two gridviews  in my ascx controls.Question GrdView and Response Gridview.

Question gridview consist of three label columns(item template and edititemtemplate) , two dropdownlist and three link buttons(Response ,edit and delete)

Response gridview consist  of few columns.

When i click on response link button in question gridview ,that question related responses should be displayed in second gridview(Response gridview)

when i click on response link button i am able to bind second grdiview ,when i click  on response link for the second(immediately)  time  response grd is binding

but question's gridview dropdownlist values are not binding(for the first time it is ok).i am getting empty dropdownlist