GridView Master Detail behind code หน่อยครับ !!!!

	Private Sub myGridView_RowDataBound(sender As Object, e As GridViewRowEventArgs) 
		'*** GridView ***'
		Dim GvMaster As GridView = CType(e.Row.FindControl("GvMaster"),GridView)
		IF Not IsNothing(GvMaster) Then
			GvMaster.DataSource = dt
			GvMaster.DataBind()
		End IF
	End IF