ASP.NET Tutorial/Cookie/HttpCookie — различия между версиями

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Текущая версия на 11:57, 26 мая 2010

HttpCookie

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
      <asp:Label ID="myLabel" runat="server" />
    </div>
    </form>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        HttpCookie userCookie;
        userCookie = Request.Cookies["UserID"];
        if (userCookie == null)
        {
            myLabel.Text = "Creating a cookie now.";
            userCookie = new HttpCookie("UserID", "JoeBlack");
            userCookie.Expires = DateTime.Now.AddMonths(1);
            Response.Cookies.Add(userCookie);
        }
        else
        {
            myLabel.Text = "Welcome back, " + userCookie.Value;
        }
    }
}


HttpCookie (VB)

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!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>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
      <asp:Label ID="myLabel" runat="server" />
    </div>
    </form>
</body>
</html>
File: Default.aspx.vb

Partial Class _Default
    Inherits System.Web.UI.Page
    Protected Sub Page_Load(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles Me.Load
        Dim userCookie As HttpCookie
        userCookie = Request.Cookies("UserID")
        If userCookie Is Nothing Then
            myLabel.Text = "Cookie doesn"t exist! Creating a cookie now."
            userCookie = New HttpCookie("UserID", "JoeBlack")
            userCookie.Expires = DateTime.Now.AddMonths(1)
            Response.Cookies.Add(userCookie)
        Else
            myLabel.Text = "Welcome back, " & userCookie.Value
        End If
    End Sub
End Class
Источник — «http://nfex.ru/index.php?title=ASP.NET_Tutorial/Cookie/HttpCookie&oldid=2928»