public IHttpActionResult GetBillingData(string id)
        {
            BillingMasterClass BM = null;

            using (var ctx = new EasyBillingEntities())
            {
                var pmexits = ctx.Billing_Masters.Select(s => new BillingMasterClass()
                {
                    Billing_Number = s.Billing_Number
                }).Where(a => a.Billing_Number == id).Any();

                if (pmexits == true)
                {
                    BM = ctx.Billing_Masters.Select(s => new BillingMasterClass()
                    {
                        Billing_Number = s.Billing_Number,

                        Barcode_Number = s.Barcode_Number
                    }).Where(a => a.Billing_Number == id).FirstOrDefault();
                }
            }
            if (BM == null)
            {
                return(NotFound());
            }
            return(Ok(BM));
        }
        public IHttpActionResult GetBillinglastId()
        {
            BillingMasterClass BM = null;

            using (var ctx = new EasyBillingEntities())
            {
                var pmexits = ctx.Billing_Masters.Select(s => new BillingMasterClass()
                {
                    Billing_Number = s.Billing_Number
                }).Any();
                if (pmexits == true)
                {
                    BM = ctx.Billing_Masters.Select(s => new BillingMasterClass()
                    {
                        Billing_Number = s.Billing_Number
                    }).OrderByDescending(o => o.Billing_Number).FirstOrDefault();
                }
            }
            if (BM == null)
            {
                return(NotFound());
            }
            return(Ok(BM));
        }