public string ValidateUserName(string userName, string password) { try { if (Membership.ValidateUser(userName, password)) { //kiem tra tiep userName co quyen tren app if (!UserPermission.HasAppPermision(userName)) { return("-2"); // Your account can not login on IOS. Please contact Admin."; } else { int?companyID = UserPermission.GetCompanyId(userName, true); if (companyID.HasValue) { return(companyID.Value.ToString()); } else { return("-2"); } } } else { return("-1"); // "Login Failed. Please remember that passwords are case sensitive"; } } catch (Exception ex) { return(ex.Message); } }