protected void grd_PayReport_NeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e) { DataTable dt = new DataTable(); dt = GBusiness.GetPayment(3); if (dt.Rows.Count > 0) { grd_PayReport.DataSource = dt; img_ExportToExcel.Visible = true; } else { grd_PayReport.Visible = false; img_ExportToExcel.Visible = false; } }