radio button control
<p>I'm working in C# Express 2010 program and in one form I have a question that its answers are two radio buttons with two selections Yes and No. When the user chooses yes, another hidden question should appear to the user in the same form to let him/her answer it.then depending on the user's answer, if it is yes, then a formula will be calculated. if he/she answers No, nothing will be calculated.</p>

<p>Thank you.</p>

<p>Any help is appreciated!</p>
