using System;

public partial class ShoppingCart : System.Web.UI.Page
{
	protected void Page_PreInit(object sender, EventArgs e)
	{
		if (!IsPostBack)
		{
			string itemId = Request.QueryString["addItem"];

			if (!string.IsNullOrEmpty(itemId))
			{
				Profile.ShoppingCart.Add(itemId);
				Profile.Save();

				// Redirect to prevent duplictations in the cart if user hits "Refresh"
				//
				Response.Redirect("~/ShoppingCart.aspx", true);
			}
		}
	}
}
