Mega Code Archive
Caching Database Data with the SqlDataSource Control
<![CDATA[
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<script runat="server">
protected void srcProducts_Selecting(object sender, SqlDataSourceSelectingEventArgs e)
{
lblMessage.Text = "Retrieving data from database";
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Cache SqlDataSource</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label
id="lblMessage"
EnableViewState="false"
Runat="server" />
<br /><br />
<asp:GridView
id="grdProducts"
DataSourceID="srcProducts"
Runat="server" />
<!-- 3600 is (one hour) -->
<asp:SqlDataSource
id="srcProducts"
EnableCaching="True"
CacheDuration="3600"
SelectCommand="SELECT * FROM Products"
ConnectionString="<%$ ConnectionStrings:Products %>"
Runat="server" OnSelecting="srcProducts_Selecting" />
</div>
</form>
</body>
</html>
File: Web.config
<configuration>
<connectionStrings>
<add name="Products"
connectionString="Data Source=.\SQLEXPRESS;
AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
</connectionStrings>
</configuration>
]]>