Using Polling SQL Cache Dependencies with DataSource Caching : SQL Cache Dependencies « Cache « ASP.NET Tutorial
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<%@ 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">
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>Polling SQL DataSource Cache</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label
id="lblMessage"
EnableViewState="false"
Runat="server" />
<hr />
<asp:GridView
id="grdProducts"
DataSourceID="srcProducts"
Runat="server" />
<asp:SqlDataSource
id="srcProducts"
ConnectionString="<%$ ConnectionStrings:Products %>"
SelectCommand="SELECT Title, Director FROM Products"
EnableCaching="true"
SqlCacheDependency="MyDatabase:Products"
OnSelecting="srcProducts_Selecting"
Runat="server" />
</div>
</form>
</body>
</html>