// POST api/EmployeesExpensesPayment
 public HttpResponseMessage PostEmployeesExpensesPayment(EmployeesExpensesPayment employeesexpensespayment)
 {
     if (ModelState.IsValid)
     {
         employeesexpensespayment.InsertBy = loginUser.UserID;
         db.EmployeesExpensesPayments.Add(employeesexpensespayment);
         db.SaveChanges();
         var TotalPayment = (db.EmployeesExpensesPayments.Where(r => (r.EmployeesExpensesID == employeesexpensespayment.EmployeesExpensesID) && (r.EmployeeID == employeesexpensespayment.EmployeeID)).Select(r => r.PaymentAmount)).ToList().Sum();
         EmployeesExpenses employeesexpenses = db.EmployeesExpenses.Find(employeesexpensespayment.EmployeesExpensesID);
         employeesexpenses.PaymentAmount = (decimal)TotalPayment;
         employeesexpenses.DueAmount =employeesexpenses.ApproveAmount- (decimal)TotalPayment;
         db.Entry(employeesexpenses).State = EntityState.Modified;
         db.SaveChanges();
         HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Created, employeesexpensespayment);
         response.Headers.Location = new Uri(Url.Link("DefaultApi", new { id = employeesexpensespayment.EmployeesExpensesPaymentID }));
         return response;
     }
     else
     {
         return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
     }
 }
        // PUT api/EmployeesExpensesPayment/5
        public HttpResponseMessage PutEmployeesExpensesPayment(long id, EmployeesExpensesPayment employeesexpensespayment)
        {
            if (!ModelState.IsValid)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
            }

            if (id != employeesexpensespayment.EmployeesExpensesPaymentID)
            {
                return Request.CreateResponse(HttpStatusCode.BadRequest);
            }

            employeesexpensespayment.UpdateBy = loginUser.UserID;
            db.Entry(employeesexpensespayment).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException ex)
            {
                return Request.CreateErrorResponse(HttpStatusCode.NotFound, ex);
            }

            return Request.CreateResponse(HttpStatusCode.OK);
        }