web.config 下 profile节点的配置与用法

    <sessionState mode="Off"/>
    <anonymousIdentification enabled="true"/>

    <authentication mode="form">
      <forms name="PetShopAuth" loginUrl="SignIn.aspx" protection="None" timeout="60"/>
    </authentication>

 <profile automaticSaveEnabled="false" defaultProvider="ShoppingCartsProvider">
      <providers>
        <add name="ShoppingCartsProvider" connectionStringName="SQLProfileConnString" type="PetShopProfileProvider"/>
      </providers>
      <properties>
        <add name="ShoppingCart" type="Cart" allowAnonymous="true" provider="ShoppingCartsProvider"/>
      </properties>
    </profile>

Cart购物车类，主要是对Profile的操作

/// <summary>
///Cart 的摘要说明
/// </summary>
[Serializable]
public class Cart
{

    // Dictionary: key/value  
    private Dictionary<string, CartItemInfo> cartItems = new Dictionary<string, CartItemInfo>();



    /// <summary>
    /// 添加信息
    /// </summary>
    /// <param name="itemId"></param>
    public void Add(string itemId)
    {
    }

    /// <summary>
    /// Add an item to the cart.
    /// When ItemId to be added has already existed, this method will update the quantity instead.
    /// </summary>
    /// <param name="item">Item to add</param>
    public void Add(CartItemInfo item)
    {
        CartItemInfo cartItem;
        if (!cartItems.TryGetValue(item.ItemId, out cartItem))
            cartItems.Add(item.ItemId, item);
        else
            cartItem.Quantity += item.Quantity;
    }

    /// <summary>
    /// 删除信息
    /// </summary>
    /// <param name="itemId"></param>
    public void Remove(string itemId) { }


    /// <summary>
    /// 信息列队
    /// </summary>
    public ICollection<CartItemInfo> CartItems
    {
        get { return cartItems.Values; }
    }

    /// <summary>
    /// 清空信息
    /// </summary>
    public void Clear() { }
}

PetShopProfileProvider类，数据更新的操作

/// <summary>
///ProfileProvider 的摘要说明
/// </summary>

public sealed class PetShopProfileProvider : ProfileProvider
{

    private static readonly IPetShopProfileProvider dal = DataAccess.CreatePetShopProfileProvider();


    public override int DeleteInactiveProfiles(ProfileAuthenticationOption authenticationOption, DateTime userInactiveSinceDate)
    {
        throw new NotImplementedException();
    }

    public override int DeleteProfiles(string[] usernames)
    {
        throw new NotImplementedException();
    }

    public override int DeleteProfiles(ProfileInfoCollection profiles)
    {
        throw new NotImplementedException();
    }

    public override ProfileInfoCollection FindInactiveProfilesByUserName(ProfileAuthenticationOption authenticationOption, string usernameToMatch, DateTime userInactiveSinceDate, int pageIndex, int pageSize, out int totalRecords)
    {
        throw new NotImplementedException();
    }

    public override ProfileInfoCollection FindProfilesByUserName(ProfileAuthenticationOption authenticationOption, string usernameToMatch, int pageIndex, int pageSize, out int totalRecords)
    {
        throw new NotImplementedException();
    }

    public override ProfileInfoCollection GetAllInactiveProfiles(ProfileAuthenticationOption authenticationOption, DateTime userInactiveSinceDate, int pageIndex, int pageSize, out int totalRecords)
    {
        throw new NotImplementedException();
    }

    public override ProfileInfoCollection GetAllProfiles(ProfileAuthenticationOption authenticationOption, int pageIndex, int pageSize, out int totalRecords)
    {
        throw new NotImplementedException();
    }

    public override int GetNumberOfInactiveProfiles(ProfileAuthenticationOption authenticationOption, DateTime userInactiveSinceDate)
    {
        throw new NotImplementedException();
    }


    private const string ERR_INVALID_PARAMETER = "Invalid Profile parameter:";
    private const string PROFILE_SHOPPINGCART = "ShoppingCart";

    private static string applicationName = ".NET Pet Shop 4.0";

    public override string ApplicationName
    {
        get
        {
            return applicationName;
        }
        set
        {
            applicationName = value;
        }
    }

    public override void Initialize(string name, NameValueCollection config)
    {

        if (config == null)
            throw new ArgumentNullException("config");

        if (string.IsNullOrEmpty(config["description"]))
        {
            config.Remove("description");
            config.Add("description", "Pet Shop Custom Profile Provider");
        }

        if (string.IsNullOrEmpty(name))
            name = "PetShopProfileProvider";

        if (config["applicationName"] != null && !string.IsNullOrEmpty(config["applicationName"].Trim()))
            applicationName = config["applicationName"];

        base.Initialize(name, config);

    }

    public override SettingsPropertyValueCollection GetPropertyValues(SettingsContext context, SettingsPropertyCollection collection)
    {

        string username = (string)context["UserName"];
        bool isAuthenticated = (bool)context["IsAuthenticated"];


        SettingsPropertyValueCollection svc = new SettingsPropertyValueCollection();

        foreach (SettingsProperty prop in collection)
        {
            SettingsPropertyValue pv = new SettingsPropertyValue(prop);

            switch (pv.Property.Name)
            {
                case PROFILE_SHOPPINGCART:
                    Cart cart = new Cart();
                    CartItemInfo ci = new CartItemInfo("ssd", "gxac", 1, 1, "ssd", "q", "s1");
                    cart.Add(ci);
                    // pv.PropertyValue = cart;
                    pv.PropertyValue = GetCartItems(username, true);
                    break;
                default:
                    throw new ApplicationException(ERR_INVALID_PARAMETER + " name.");
            }

            svc.Add(pv);
        }

        return svc;
    }

    // Retrieve cart 
    private static Cart GetCartItems(string username, bool isShoppingCart)
    {
        Cart cart = new Cart();
        foreach (CartItemInfo cartItem in dal.GetCartItems(username, applicationName, isShoppingCart))
        {
            cart.Add(cartItem);
        }
        return cart;
    }

    public override void SetPropertyValues(SettingsContext context, SettingsPropertyValueCollection collection)
    {
        throw new NotImplementedException();
    }
}

购物车model

[Serializable]
    public class CartItemInfo
    {

        // Internal member variables
        private int quantity = 1;
        private string itemId;
        private string name;
        private string type;
        private decimal price;
        private string categoryId;
        private string productId;

        /// <summary>
        /// Default constructor
        /// </summary>
        public CartItemInfo() { }

        /// <summary>
        /// Constructor with specified initial values
        /// </summary>
        /// <param name="itemId">Id of item to add to cart</param></param>
        /// <param name="name">Name of item</param>
        /// <param name="qty">Quantity to purchase</param>
        /// <param name="price">Price of item</param>
        /// <param name="type">Item type</param>      
        /// <param name="categoryId">Parent category id</param>
        /// <param name="productId">Parent product id</param>
        public CartItemInfo(string itemId, string name, int qty, decimal price, string type, string categoryId, string productId)
        {
            this.itemId = itemId;
            this.name = name;
            this.quantity = qty;
            this.price = price;
            this.type = type;
            this.categoryId = categoryId;
            this.productId = productId;
        }

        // Properties
        public int Quantity
        {
            get { return quantity; }
            set { quantity = value; }
        }

        public decimal Subtotal
        {
            get { return (decimal)(this.quantity * this.price); }
        }

        public string ItemId
        {
            get { return itemId; }
        }

        public string Name
        {
            get { return name; }
        }

        public string Type
        {
            get
            {
                return type;
            }
        }
        public decimal Price
        {
            get { return price; }
        }

        public string CategoryId
        {
            get
            {
                return categoryId;
            }
        }
        public string ProductId
        {
            get
            {
                return productId;
            }
        }
    }

用法

protected void Button1_Click(object sender, EventArgs e)
    {
　　　　
        ICollection<CartItemInfo> info = Profile.ShoppingCart.CartItems;

        GridView1.DataSource = info;
        GridView1.DataBind();

        string username = (string)Profile.Context["UserName"];

        Response.Write(username);
    }