DataGrid实现自动编号

 protected void dgApplyInfo_ItemDataBound(object sender, DataGridItemEventArgs e)
    {                 
        int startIndex;
        if (e.Item.ItemIndex != -1)//分页的情况

        {
            startIndex = dgApplyInfo.PageSize * dgApplyInfo.CurrentPageIndex;
            e.Item.Cells[1].Text = Convert.ToString(startIndex + e.Item.ItemIndex + 1);
          
        } 

}