Please refer this code
HTML
<table border="1" cellpadding="0" cellspacing="5" width="400">
<tr>
<td width="30%">
Graduate
</td>
<td>
<asp:RadioButtonList ID="rblGraduate" runat="server" onclick="ShowHide(this)">
<asp:ListItem Text="Yes" Value="Yes" />
<asp:ListItem Text="No" Value="No" />
</asp:RadioButtonList>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblDegreeName" Text="Degree Name" runat="server" Style="display: none;" />
</td>
<td>
<asp:TextBox ID="txtDegreeName" runat="server" Style="display: none;" />
</td>
</tr>
</table>
Style
<style type="text/css">
body
{
font-family: Arial;
font-size: 10pt;
}
td
{
border: 0;
}
</style>
Script
<script type="text/javascript">
function ShowHide(table) {
var radioButton = table.getElementsByTagName('input');
for (var i = 0; i < radioButton.length; i++) {
if (radioButton[i].checked) {
document.getElementById("<%=lblDegreeName.ClientID %>").style.display = radioButton[i].value == "Yes" ? "block" : "none";
document.getElementById("<%=txtDegreeName.ClientID %>").style.display = radioButton[i].value == "Yes" ? "block" : "none";
}
}
}
</script>
Screenshot
