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<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub btnSubmit_Click(ByVal sender As Object, ByVal e As EventArgs)
If rdlOther.Checked Then
pnlOther.Visible = True
Else
pnlOther.Visible = False
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Show Panel</title>
</head>
<body>
<form id="form1" runat="server">
Select your programming language:
<asp:RadioButton
id="rdlVisualBasic"
GroupName="language"
Text="Visual Basic"
Runat="server" />
<asp:RadioButton
id="rdlCSharp"
GroupName="language"
Text="C#"
Runat="server" />
<asp:RadioButton
id="rdlOther"
GroupName="language"
Text="Other Language"
Runat="server" />
<asp:Panel
id="pnlOther"
Visible="false"
Runat="server">
<asp:Label
id="lblOther"
Text="Other Language:"
AssociatedControlID="txtOther"
Runat="server" />
<asp:TextBox
id="txtOther"
Runat="server" />
</asp:Panel>
<asp:Button
id="btnSubmit"
Text="Submit"
OnClick="btnSubmit_Click"
Runat="server" />
</form>
</body>
</html>
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