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OutputCache directive causes the contents of the User Control to be cached in memory for a maximum of 10 minutes (600 seconds).
File: Control.ascx
<%@ Control Language="C#" ClassName="Products" %>
<%@ OutputCache Duration="600" VaryByParam="none" %>
User Control Time:
<%= DateTime.Now.ToString("T") %>
<asp:GridView
id="grdProducts"
DataSourceID="srcProducts"
Runat="server" />
<asp:SqlDataSource
id="srcProducts"
ConnectionString="<%$ ConnectionStrings:Products %>"
SelectCommand="SELECT Title,Director FROM Products"
Runat="server" />
File: ShowUserControlCache.aspx
<%@ Page Language="C#" %>
<%@ Register TagPrefix="user" TagName="Products" Src="~/Control.ascx" %>
<!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 id="Head1" runat="server">
<title>Show User Control Cache</title>
</head>
<body>
<form id="form1" runat="server">
<div>
Page Time:
<%= DateTime.Now.ToString("T") %>
<hr />
<user:Products
id="Products1"
Runat="server" />
</div>
</form>
</body>
</html>
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