RemoveShoppingCart(int ProductID)

　　{

　　if (HttpContext.Current.Request.Cookies["ShoppingCart"] != null)

　　{

　　HttpCookie oCookie = (HttpCookie)HttpContext.Current.Request.Cookies["ShoppingCart"];

　　oCookie.Expires = DateTime.Now.AddYears(3);

　　//Check if Cookie already contain same item

　　string ShoppingCartStr = oCookie.Value.ToString();

　　string[] arrCookie = ShoppingCartStr.Split(new char[] { ',' });

　　string[] arrCookie2 = new string[arrCookie.Length - 1];

　　int j = 0;

　　string NewStr = "";

　　for (int i = 0; i < arrCookie.Length; i++)

　　{

　　if (arrCookie[i].Trim().Remove(arrCookie[i].IndexOf(':')) != ProductID.ToString())

　　NewStr = NewStr + "," + arrCookie[i];

　　}

　　if (NewStr == "")

　　HttpContext.Current.Response.Cookies["ShoppingCart"].Value = "";

　　else

　　HttpContext.Current.Response.Cookies["ShoppingCart"].Value = NewStr.Substring(1);

　　}

　　}

　　public static void UpdateShoppingCart(int ProductID, int Quantity, bool box)

　　{

　　int Box = 1;

　　if (!box)

　　Box = 0;

　　if (HttpContext.Current.Request.Cookies["ShoppingCart"] != null)

　　{

　　bool bExists = false;

　　HttpCookie oCookie = (HttpCookie)HttpContext.Current.Request.Cookies["ShoppingCart"];

　　oCookie.Expires = DateTime.Now.AddYears(3);

　　string ShoppingCartStr = oCookie.Value.ToString();

　　string[] arrCookie = ShoppingCartStr.Split(new char[] { ',' });

　　//查看cookie中是否有该产品

　　string newCookie = "";

　　for (int i = 0; i < arrCookie.Length; i++)

　　{

　　if (arrCookie[i].Trim().Remove(arrCookie[i].IndexOf(':')) == ProductID.ToString().Trim())

　　arrCookie[i] = arrCookie[i].Trim().Remove(arrCookie[i].IndexOf(':')) + ":" + Quantity.ToString() + ":" + Box.ToString();

　　newCookie = newCookie + "," + arrCookie[i];

　　}

　　HttpContext.Current.Response.Cookies["ShoppingCart"].Value = newCookie.Substring(1);

　　}

　　}
　　　public static DataTable GetShoppingCart()
　　{

　　DataTable dt = new DataTable();

　　if (HttpContext.Current.Request.Cookies["ShoppingCart"] != null && HttpContext.Current.Request.Cookies["ShoppingCart"].Value.Trim() != "")

　　{

　　HttpCookie oCookie = (HttpCookie)HttpContext.Current.Request.Cookies["ShoppingCart"];

　　oCookie.Expires = DateTime.Now.AddYears(3);

　　string ShoppingCartStr = oCookie.Value.ToString();

　　//HttpContext.Current.Response.Write(ShoppingCartStr);

　　string[] arrCookie = ShoppingCartStr.Split(new char[] { ',' });

　　//查看cookie中是否有该产品

　　string newCookie = "";

　　for (int i = 0; i < arrCookie.Length; i++)

　　{

　　newCookie = newCookie + "," + arrCookie[i].Trim().Remove(arrCookie[i].IndexOf(':'));

　　}

　　newCookie = newCookie.Substring(1);

　　dt = Product.GetProductByProductIds(newCookie, -1);

　　dt.Columns.Add("Quantity");

　　dt.Columns.Add("Box");

　　foreach (DataRow row in dt.Rows)

　　{

　　for (int i = 0; i < arrCookie.Length; i++)

　　{

　　if (arrCookie[i].Trim().Remove(arrCookie[i].IndexOf(':')) == row["ProductId"].ToString())

　　{

　　row["Quantity"] = arrCookie[i].Substring(arrCookie[i].IndexOf(":") + 1);

　　row["Quantity"] = row["Quantity"].ToString().Remove(row["Quantity"].ToString().IndexOf(":"));

　　string Box = arrCookie[i].Substring(arrCookie[i].LastIndexOf(":") + 1);

　　if (Box == "1")

　　row["Box"] = true;

　　else

　　row["Box"] = false;

　　}

　　}

　　}

　　}

　　else

　　{

　　dt = Database.GetDataTable("select top 0 * from View_ProductList");

　　dt.Columns.Add("Quantity");

　　}

　　return dt;

　　}

　　}