my bad....I misread your post.
<input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" />
<input type="hidden" name="__EVENTARGUMENT" id="__EVENTARGUMENT" value="" />
Private Function __doPostBack(ByValeventTarget, ByValeventArgument) As
function
If Not theForm.onsubmit ||(theForm.onsubmit() <> False) Then
theForm.__EVENTTARGET.value = eventTarget
theForm.__EVENTARGUMENT.value = eventArgument
theForm.submit()
End If
End Function
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Dim controlName As String = Request.Params.Get("__EVENTTARGET")
End Sub