WebApplication与Profile购物车

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WebApplication与Profile购物车

2012年08月16日 ⁄ 综合 ⁄ 共 9283字 ⁄ 字号小中大 ⁄ 评论关闭

在WebApplication中使用Profile做购物车功能。开发环境VS.NET 2008。

一Web.config文件配置

Code

二UserProfile类

Code

三ProfileShoppingCart类

Code
using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Data;

namespace ShoppingCartTest

{

[Serializable]

public class ProfileShoppingCart

{

public DataTable _CartItems = new DataTable("CartItems");

public ProfileShoppingCart()

{

CreatTable();

}

// 返回购物车中所有的商品

public DataTable CartItems

{

get { return _CartItems; }

}

// 计算购物车中所有商品的总价钱

public decimal Total

{

get

{

decimal sum = 0;

foreach (DataRow row in _CartItems.Rows)

sum += Convert.ToDecimal(row["Price"].ToString()) * Convert.ToDecimal(row["Quantity"].ToString());

return sum;

}

// 添加商品到购物车

public void AddItem(int ID, string Name, decimal Price)

{

if (_CartItems.Select("ID=" + ID).Length == 0)

{

DataRow row = _CartItems.NewRow();

row["ID"] = ID;

row["Name"] = Name;

row["Price"] = Price;

row["Quantity"] = 1;

_CartItems.Rows.Add(row);

}

else

{

foreach (DataRow row in _CartItems.Select("ID=" + ID))

{

row["Quantity"] = Convert.ToDecimal(row["Quantity"].ToString()) + 1;

}

// 移除购物车中的商品

public void RemoveItem(int ID)

{

if (_CartItems.Select("ID=" + ID).Length == 0)

{

return;

}

else

{

foreach (DataRow row in _CartItems.Select("ID=" + ID))

{

row["Quantity"] = Convert.ToDecimal(row["Quantity"].ToString()) - 1;

if (Convert.ToDecimal(row["Quantity"].ToString()) == 0)

{

_CartItems.Rows.Remove(row);

}

// 创建DataTable

private void CreatTable()

{

_CartItems.Columns.Add("ID", typeof(int));

_CartItems.Columns.Add("Name",typeof(string));

_CartItems.Columns.Add("Price",typeof(decimal));

_CartItems.Columns.Add("Quantity", typeof(decimal));

}

四shopping.aspx代码

Code

五shopping.aspx.cs代码

Code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Globalization;
using System.Web.Profile;

namespace ShoppingCartTest
{
    public partial class shopping : System.Web.UI.Page
    {
        private static UserProfile Profile ;
        // 绑定购物车
        private void BindShoppingCart()
        {
            if (Profile.ProfileShoppingCart != null)
            {
                CartGrid.DataSource = Profile.ProfileShoppingCart.CartItems;
                CartGrid.DataBind();
                lblTotal.Text = Profile.ProfileShoppingCart.Total.ToString("c");
            }
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                //Profile = UserProfile.GetUserProfile("ProfileShoppingCart");
                Profile = UserProfile.GetUserProfile();

                BindShoppingCart();
            }

            GridView1.DataSource = ProfileManager.GetAllProfiles(System.Web.Profile.ProfileAuthenticationOption.All);
            GridView1.DataBind();
            lblProfile.Text = Profile.UserName;
        }
        // 移除购物车中的产品
        protected void RemoveCartItem(object sender, EventArgs e)
        {
            int ID = (int)CartGrid.SelectedDataKey.Value;
            Profile.ProfileShoppingCart.RemoveItem(ID);
            Profile.Save();
            BindShoppingCart();
        }
        // 添加产品到购物车
        protected void AddCartItem(object sender, EventArgs e)
        {
            GridViewRow row = ProductGrid.SelectedRow;

            int ID = (int)ProductGrid.SelectedDataKey.Value;
            String Name = row.Cells[1].Text;
            decimal Price = Decimal.Parse(row.Cells[2].Text,
              NumberStyles.Currency);

if (Profile.ProfileShoppingCart == null)
Profile.ProfileShoppingCart = new ProfileShoppingCart();

            Profile.ProfileShoppingCart.AddItem(ID, Name, Price);
            Profile.Save();
            BindShoppingCart();
        }

        protected void btnClearProfile_Click(object sender, EventArgs e)
        {
            foreach (ProfileInfo pf in ProfileManager.GetAllProfiles(System.Web.Profile.ProfileAuthenticationOption.All))
            {
                if (DateTime.Now.Day - pf.LastUpdatedDate.Day >= 1)
                {
                    ProfileManager.DeleteProfile(pf.UserName);
                }
            }
            GridView1.DataSource = ProfileManager.GetAllProfiles(System.Web.Profile.ProfileAuthenticationOption.All);
            GridView1.DataBind();
        }
    }
}