public static string GetFollowupDetails() { DataTable dtProductDetails = new DataTable(); decimal client_alias = Convert.ToDecimal(HttpContext.Current.Session["UserID"].ToString().Trim().Substring(0, 4)); dtProductDetails = VPCRMSBAL.GetFollowupDetails(Convert.ToDecimal(HttpContext.Current.Session["UserID"])); String json = DataTableToJSONWithJavaScriptSerializer(dtProductDetails); return(json); }