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<system.web>
<anonymousIdentification enabled="true"/>
<profile inherits="ShoppingCartTest.UserProfile">
</profile>
</system.web>
二UserProfile类
Codeusing System.Web.Profile;
using System.Web.Security;
namespace ShoppingCartTest
{
public class UserProfile : ProfileBase
{
public static UserProfile GetUserProfile(string username)
{
return ((UserProfile)(ProfileBase.Create(username)));
}
public static UserProfile GetUserProfile()
{
string userName = System.Web.HttpContext.Current.User.Identity.Name;
return Create(userName) as UserProfile;
}
public virtual ProfileShoppingCart ProfileShoppingCart
{
get
{
return ((ProfileShoppingCart)(this.GetPropertyValue("ProfileShoppingCart")));
}
set
{
this.SetPropertyValue("ProfileShoppingCart", value);
}
}
}
}
三ProfileShoppingCart类
Codeusing 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<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="shopping.aspx.cs" Inherits="ShoppingCartTest.shopping" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<table width="100%">
<tr>
<td valign="top">
<h2>
Products</h2>
<asp:GridView ID="ProductGrid" DataSourceID="ProductSource" DataKeyNames="ProductID"
AutoGenerateColumns="false" OnSelectedIndexChanged="AddCartItem" ShowHeader="false"
CellPadding="5" runat="Server">
<Columns>
<asp:ButtonField CommandName="select" Text="Buy" />
<asp:BoundField DataField="ProductName" />
<asp:BoundField DataField="UnitPrice" DataFormatString="{0:c}" />
</Columns>
</asp:GridView>
<asp:SqlDataSource ID="ProductSource" ConnectionString="Server=localhost;Database=Northwind;Trusted_Connection=true;"
SelectCommand="SELECT ProductID,ProductName,UnitPrice FROM Products" runat="Server" />
</td>
<td valign="top">
<h2>
Shopping Cart</h2>
<asp:GridView ID="CartGrid" AutoGenerateColumns="false" DataKeyNames="ID" OnSelectedIndexChanged="RemoveCartItem"
CellPadding="5" Width="300" runat="Server">
<Columns>
<asp:ButtonField CommandName="select" Text="Remove" />
<asp:BoundField DataField="Name" HeaderText="Name" />
<asp:BoundField DataField="Price" HeaderText="Price" DataFormatString="{0:c}" />
<asp:BoundField DataField="Quantity" HeaderText="Quantity" />
</Columns>
</asp:GridView>
<b>Total:</b>
<asp:Label ID="lblTotal" runat="Server" />
<br />
<b> Profile：</b><asp:Label ID="lblProfile" runat="server" Text="[lblProfile]"></asp:Label>
<br />
<a href="profileView.aspx" target="_blank">profileView</a>
<br />
<asp:Button ID="btnClearProfile" runat="server" onclick="btnClearProfile_Click"
Text="ClearProfile" />
<br />
<asp:GridView ID="GridView1" runat="server">
</asp:GridView>
</td>
</tr>
</table>
</form>
</body>
</html>
五shopping.aspx.cs代码
Codeusing 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();
}
}
}
六 Global.asax.cs
Codeusing System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.SessionState;
using System.Web.Profile;
namespace ShoppingCartTest
{
public class Global : System.Web.HttpApplication
{
protected void Profile_MigrateAnonymous(Object sender,ProfileMigrateEventArgs e)
{
UserProfile Profile = UserProfile.GetUserProfile("ProfileShoppingCart");
UserProfile anonProfile = UserProfile.GetUserProfile(e.AnonymousID);
Profile.ProfileShoppingCart = anonProfile.ProfileShoppingCart;
}
}
}