public IHttpActionResult Posttbl_sku(tbl_sku tbl_sku)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.tbl_sku.Add(tbl_sku);

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateException)
            {
                if (tbl_skuExists(tbl_sku.sku_barcode))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtRoute("DefaultApi", new { id = tbl_sku.sku_barcode }, tbl_sku));
        }
        public IHttpActionResult Puttbl_sku(double id, tbl_sku tbl_sku)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != tbl_sku.sku_barcode)
            {
                return(BadRequest());
            }

            db.Entry(tbl_sku).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!tbl_skuExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult Gettbl_sku(double id)
        {
            tbl_sku tbl_sku = db.tbl_sku.Find(id);

            if (tbl_sku == null)
            {
                return(NotFound());
            }

            return(Ok(tbl_sku));
        }
        public IHttpActionResult Deletetbl_sku(double id)
        {
            tbl_sku tbl_sku = db.tbl_sku.Find(id);

            if (tbl_sku == null)
            {
                return(NotFound());
            }

            db.tbl_sku.Remove(tbl_sku);
            db.SaveChanges();

            return(Ok(tbl_sku));
        }