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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 Page_Load(object sender, EventArgs e)
{
// Find the server name on the previous page
TextBox txt =
(TextBox)Page.PreviousPage.FindControl("serverNameText");
if (txt != null)
prevServerName.Text = Server.HtmlEncode(txt.Text);
else
prevServerName.Text = "[Name Not available]";
}
</script>
<html >
<head runat="server">
<title>Page A</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2>Database Server is Not Available</h2>
<p>This page appears if the named database server is not
available, but the URL displays as the main target page.</p>
<p>Server Name (From Page.PreviousPage):
<asp:Label ID="prevServerName" runat="server" /></p>
<p>Refresh the page to see if the server is now available.</p>
</div>
</form>
</body>
</html>
<%@ 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 Page_Load(object sender, EventArgs e)
{
// If second is an even number, the server is available
// Replace this line with a valid check for the server.
bool IsServerAvailable = (DateTime.Now.Second % 2 == 0);
if (!IsServerAvailable)
Server.Transfer("Notify.aspx", true);
}
</script>
<html >
<head runat="server">
<title>Switch Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2>Database Server is Available</h2>
<p>This page appears if the database server
is available.</p>
<p>Enter a pretend Server Name:
<asp:TextBox ID="serverNameText"
runat="server">MyDatabaseServer</asp:TextBox>
</p>
<p><asp:Button ID="SubmitButton" runat="server"
Text="Is server available?" /></p>
</div>
</form>
</body>
</html>