public static List <IdentifiedUser> GetIdentifiedUsers(string siteIDs, string programIDs, string coPIDs, string tagIDs) { var identifiedUserList = new List <IdentifiedUser>(); identifiedUserList = UserCustom.GetIdentifiedUsers(siteIDs, programIDs, coPIDs, tagIDs); identifiedUserList.Insert(0, new IdentifiedUser { UserID = -1, FullName = "All" }); return(identifiedUserList); }