Date Time culture

  System.Threading.Thread.CurrentThread.CurrentCulture = Fmt
        System.Threading.Thread.CurrentThread.CurrentCulture.DateTimeFormat.ShortDatePattern = "dd/MM/yyyy"
        DTF.ShortDatePattern = "dd/MM/yyyy"

Auto Serial generate in Grid view

type this line in Item Teplate
                           <%# Container.DataItemIndex + 1 %>