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View Sample
<head>
<title>RadioButton Example</title>
<link rel="stylesheet" href="/shared/netdemos.css">

<script language="C#" runat="server">
string [ ] answers = {
   "Abraham Lincoln came a tad bit later.",
   "Christopher Columbus was an explorer, <br>not a United States President.",
   "Correct. George Washington was the first President <br>of the United States of America.",
   "Robert Plant was the lead vocalist of Led Zeppelin, <br>not a United States President."};

void chkAnswer ( object src, EventArgs e ) {
   string txt = "";
   if ( Radio1.Checked )
      txt += answers [ 0 ];
   else if ( Radio2.Checked )
      txt += answers [ 1 ];
   else if ( Radio3.Checked )
      txt += answers [ 2 ];
   else if ( Radio4.Checked )
      txt += answers [ 3 ];
   msg.InnerHtml = txt;
}
</script>
</head>

<body>
<!-- #include virtual="~/shared/top.inc -->
<div class="header"><h2>RadioButton Example</h2></div>

<!-- #include virtual="~/shared/viewsrc_top.inc" -->
<hr size=1 width=92%>

<div align="center">
<form runat="server">

   <h5>The first president of the United States was:</h5>

   <table>
   <tr><td>
      <asp:RadioButton id="Radio1" Text="Abraham Lincoln"
         GroupName="choices" runat="server" /><br>
      <asp:RadioButton id="Radio2" Text="Christopher Columbus"
         GroupName="choices" runat="server" /><br>
      <asp:RadioButton id="Radio3" Text="George Washington"
         GroupName="choices" runat="server" /><br>
      <asp:RadioButton id="Radio4" Text="Robert Plant"
         GroupName="choices" runat="server" /><br>
   </td></tr>
   </table>

   <p><asp:button text="Submit" onClick="chkAnswer" runat="server" />

   <p id="msg" runat="server" />

</form>
</div>

<hr size=1 width=92%>
<!-- #include virtual="~/shared/viewsrc.inc" -->

</body>
</html>