public async Task <ActionResult> DeleteConfirmed(int id)
        {
            In_warehouse in_warehouse = await db.In_warehouse.FindAsync(id);

            db.In_warehouse.Remove(in_warehouse);
            await db.SaveChangesAsync();

            return(RedirectToAction("Index"));
        }
        // GET: In_warehouse/Delete/5
        public async Task <ActionResult> Delete(int?id, int?wh_id)
        {
            if (id == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }
            In_warehouse in_warehouse = await db.In_warehouse.Where(i => i.Product_id == id && i.Warehouse_id == wh_id).FirstOrDefaultAsync();

            if (in_warehouse == null)
            {
                return(HttpNotFound());
            }
            return(View(in_warehouse));
        }
        public async Task <ActionResult> Edit([Bind(Include = "Id,Name,Price_base,Price,Category_id,Currency_id,Barcode,Quantity,Warehouse_id")] Product product)
        {
            if (ModelState.IsValid)
            {
                In_warehouse in_Warehouse = db.In_warehouse.Where(i => i.Warehouse_id == product.Warehouse_id && i.Product_id == product.Id).FirstOrDefault();
                in_Warehouse.Quantity = product.Quantity;
                Currency currency = await db.Currency.Where(i => i.Id == product.Currency_id).FirstOrDefaultAsync();

                product.Price_base           = Math.Round(product.Price * currency.Rate, 3);
                db.Entry(product).State      = EntityState.Modified;
                db.Entry(in_Warehouse).State = EntityState.Modified;
                await db.SaveChangesAsync();

                return(RedirectToAction("Details", new { id = product.Warehouse_id }));
            }
            ViewBag.Category_id = new SelectList(db.Category, "Id", "Name", product.Category_id);
            ViewBag.Currency_id = new SelectList(db.Currency, "Id", "Name", product.Currency_id);
            return(View(product));
        }
        public async Task <ActionResult> Create([Bind(Include = "Quantity,Warehouse_id,Product_id")] In_warehouse in_Warehouse)
        {
            if (ModelState.IsValid)
            {
                In_warehouse warehouse = await db.In_warehouse.Where(i => i.Warehouse_id == in_Warehouse.Warehouse_id && i.Product_id == in_Warehouse.Product_id).FirstOrDefaultAsync();

                if (warehouse == null)
                {
                    db.In_warehouse.Add(in_Warehouse);
                }
                else
                {
                    warehouse.Quantity       += in_Warehouse.Quantity;
                    db.Entry(warehouse).State = EntityState.Modified;
                }
                await db.SaveChangesAsync();

                return(RedirectToAction("Index"));
            }

            //ViewBag.Category_id = new SelectList(db.Category, "Id", "Name", product.Category_id);
            //ViewBag.Currency_id = new SelectList(db.Currency, "Id", "Name", product.Currency_id);
            return(View());
        }