Private Sub myGridView_RowDataBound(sender As Object, e As GridViewRowEventArgs)
'*** Used ***'
Dim lblUsed As Label = CType(e.Row.FindControl("lblUsed"),Label)
IF Not IsNothing(lblUsed) Then
Sum = Sum + e.Row.DataItem("Used")
lblUsed.Text = FormatNumber(e.Row.DataItem("Used"),2)
End IF
End Sub