public string AddPayment(PaymentDetail detail)
{
var result = "Success";
detail.AddedAt = DateTime.Now;
var userid = Context.GetUser();
var emp = (from empl in EmployeeLoginMapping where empl.employeeid == userid select empl).FirstOrDefault();
detail.AddedBy = emp == null ?"": emp.loginname;
var r = PaymentDetail.Add(detail);
this.SaveChanges();
return(result);
}