// POST api/BillofMaterialCategory
        public HttpResponseMessage PostBillofMaterialCategory(BillofMaterialCategory billofmaterialcategory)
        {
            if (ModelState.IsValid)
            {
                billofmaterialcategory.InsertBy = loginUser.UserID;

                db.BillofMaterialCategories.Add(billofmaterialcategory);
                db.SaveChanges();

                HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Created, billofmaterialcategory);
                response.Headers.Location = new Uri(Url.Link("DefaultApi", new { id = billofmaterialcategory.BillofMaterialCategoryID }));
                return response;
            }
            else
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
            }
        }
        // PUT api/BillofMaterialCategory/5
        public HttpResponseMessage PutBillofMaterialCategory(long id, BillofMaterialCategory billofmaterialcategory)
        {
            if (!ModelState.IsValid)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
            }

            if (id != billofmaterialcategory.BillofMaterialCategoryID)
            {
                return Request.CreateResponse(HttpStatusCode.BadRequest);
            }

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

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

            return Request.CreateResponse(HttpStatusCode.OK);
        }