Updatepanel with gridview error in AsyncPostBackTrigger with EventName

Hi

I have gridview in which i have taken a linkbutton ,my requirement is to ,when user clicks on the linkbutton that name should display on a label ,
i'm getting a error like the following

Could not find an event named 'lnkEmailId_OnClick' on associated control 'gridviewUsers' for the trigger in UpdatePanel 'UpdatePanel1'.















CommandName="Clicked" CommandArgument='<%#Bind("EmailID") %>'>









if i use
it is working fine but a postback is happening
Pleas help me out ,how can i do with