public EditProduct() { storeProductRep = new StoreProductRepository(); storeAnimeRep = new StoreAnimeRepository(); storeColorRep = new StoreColorRepository(); long productID = 0; if (!string.IsNullOrEmpty(HttpContext.Current.Request["ProductID"])) { productID = MyCommon.ToLong(HttpContext.Current.Request["ProductID"]); } if (productID > 0) { _product = storeProductRep.GetProductByID(productID); if (_product == null) { HttpContext.Current.Response.Redirect("ProductList.aspx"); } } }