protected void AddAddOnsButtonClick(object sender, EventArgs e) { int addOnId; int.TryParse(ProductAvailableAddOnsDdl.SelectedValue, out addOnId); if (addOnId != 0) { var productAddOns = new ProductAddOns { AddOnId = addOnId, ProductId = _productId }; _productRepository.AddAddOns(productAddOns); _productRepository.ResetCache(); RebindAddOns(true); } }