public void Create() { using (var ctx = new ProductMNEntities()) { var domain = new ProductDomain(ctx); var product = new Product(); product.ProductName = Product_Name.Text; product.SupplierID = int.Parse(Suppliers_ID.SelectedValue); product.CategoryID = int.Parse(Categories_ID.SelectedValue); product.UnitPrice = decimal.Parse(Unit_Price.Text); product.UnitsInStock = short.Parse(Units_In_Stock.Text); product.UnitsOnOrder = short.Parse(Units_On_Order.Text); product.ReorderLevel = short.Parse(Recorder_Level.Text); product.QuantityPerUnit = Quantity_Per_Unit.Text; product.Discontinued = bool.Parse(Discountinued.SelectedValue); domain.Create(product); ctx.SaveChanges(); } }