/// <summary>
/// Sets datasources and bind data to controls.
/// </summary>
private void Bind()
{
// Validate selected CategoryId
int categoryId;
if (!int.TryParse(DropDownListCategories.SelectedValue, out categoryId))
categoryId = 1;
// Gets list of products.
ProductController controller = new ProductController();
GridViewProducts.DataSource = controller.GetProducts(categoryId, SortExpression);
GridViewProducts.DataBind();
}
/// <summary>
/// Takes search criteria, sets datasource, and bind data to controls.
/// </summary>
private void Bind()
{
// Validate price range.
int priceRangeId;
if (!int.TryParse(DropDownListRange.SelectedValue, out priceRangeId))
priceRangeId = 0;
// Get product name entered.
string productName = this.TextBoxProductName.Text.Trim();
// Retrieve list of products.
ProductController controller = new ProductController();
GridViewProducts.DataSource = controller.SearchProducts(productName, priceRangeId, SortExpression);
GridViewProducts.DataBind();
}
/// <summary>
/// Adds item to shopping cart and redirect to shopping cart page.
/// </summary>
protected void ButtonAddToCart_Click(object sender, EventArgs e)
{
Page.Validate();
if (!Page.IsValid) return;
// Retrieve product via Product Facade.
ProductController controller = new ProductController();
ActionServiceReference.Product product = controller.GetProduct(ProductId);
// Get product details and add information to cart.
int productId = product.ProductId;
string name = product.ProductName;
double unitPrice = product.UnitPrice;
int quantity;
if (!int.TryParse(TextBoxQuantity.Text.Trim(), out quantity))
quantity = 1;
CartController cartController = new CartController();
cartController.AddItem(productId, name, quantity, unitPrice);
// Show shopping cart to user.
Response.Redirect("Cart.aspx");
}