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<%@ 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 btnSubmit_Click(object sender, EventArgs e)
{
lblProduct.Text = lstProducts.SelectedItem.Text;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Show ListBox</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ListBox
id="lstProducts"
DataSourceID="srcProducts"
DataTextField="Title"
DataValueField="Id"
Rows="8"
Runat="server" />
<asp:Button
id="btnSubmit"
Text="Submit"
OnClick="btnSubmit_Click"
Runat="server" />
<hr />
<asp:Label
id="lblProduct"
Runat="server" />
<asp:SqlDataSource
id="srcProducts"
SelectCommand="SELECT Id, Title FROM Products"
ConnectionString="<%$ ConnectionStrings:Products %>"
Runat="server" />
</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>
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