в 15:30, 26 мая 2010

2010-05-26T15:30:57Z

Admin: 1 версия

2010-05-26T11:57:28Z

1 версия

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== List all cookies contained in the Request.Cookies collection==



<source lang="csharp">
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void Page_Load()
{
ArrayList colCookies = new ArrayList();
for (int i = 0; i < Request.Cookies.Count; i++)
colCookies.Add(Request.Cookies[i]);
grdCookies.DataSource = colCookies;
grdCookies.DataBind();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Get All Cookies</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView
id="grdCookies"
Runat="server"/>
</div>
</form>
</body>
</html></source>

== Read cookie, if not there, create one (C#)==



<source lang="csharp">
File: Default.ascx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="CookieExample" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<div>
<asp:Label ID="lblWelcome" runat="server" EnableViewState="False" ></asp:Label>
</div>
<br />
Name:
<asp:TextBox ID="txtName" runat="server" Width="178px"></asp:TextBox>
<asp:Button ID="cmdStore" runat="server" OnClick="cmdStore_Click" Text="Create Cookie" />
</div>
</form>
</body>
</html>
File: Default.ascx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
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 CookieExample : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
HttpCookie cookie = Request.Cookies["Preferences"];
if (cookie == null)
{
lblWelcome.Text = "<b>Unknown Customer</b>";
}
else
{
lblWelcome.Text = "<b>Cookie Found.</b><br><br>";
lblWelcome.Text += "Welcome, " + cookie["Name"];
}
}
protected void cmdStore_Click(object sender, EventArgs e)
{
HttpCookie cookie = Request.Cookies["Preferences"];
if (cookie == null)
{
cookie = new HttpCookie("Preferences");
}
cookie["Name"] = txtName.Text;
cookie.Expires = DateTime.Now.AddYears(1);
Response.Cookies.Add(cookie);
lblWelcome.Text = "<b>Cookie Created.</b><br><br>";
lblWelcome.Text += "New Customer: " + cookie["Name"];
}
}</source>

== Reading Cookies==



<source lang="csharp">
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void Page_Load()
{
if (Request.Cookies["message"] != null)
lblCookieValue.Text = Request.Cookies["message"].Value;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Get Cookie</title>
</head>
<body>
<form id="form1" runat="server">
<div>
The value of the message cookie is:
<asp:Label
id="lblCookieValue"
Runat="server" />
</div>
</form>
</body>
</html></source>

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ASP.NET Tutorial/Cookie/Read - История изменений

в 15:30, 26 мая 2010

Admin: 1 версия