OutputCache Duration="20" VaryByParam="None" : Page Output Cache « Cache « ASP.NET Tutorial






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  3. Page Output Cache
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="OutputCaching" %>
<%@ OutputCache Duration="20" VaryByParam="None" %>

<!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>
        <asp:Label ID="lblDate" runat="server" EnableViewState="False" Font-Bold="True" Font-Size="X-Large"></asp:Label>
    </div>
    </form>
</body>
</html>

File: Default.aspx.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 OutputCaching : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        lblDate.Text = "The time is now:<br />";
        lblDate.Text += DateTime.Now.ToString();

    }
}








13.9.Page Output Cache
13.9.1.You enable Page Output Caching by adding an <%@ OutputCache %> directive to a page.
13.9.2.OutputCache Duration="20" VaryByParam="None"
13.9.3.Varying the Output Cache by Parameter
13.9.4.Varying the Output Cache by Control
13.9.5.Varying the Output Cache by Header
13.9.6.Varying the Output Cache by Browser
13.9.7.Varying the Output Cache by a Custom Function
13.9.8.Manipulating the Page Output Cache Programmatically
13.9.9.Creating Page Output Cache Profiles