If Yes button of Dialog box is clicked, run program again
<p>I'm writing a grade calculator, and at the end,  I ask the user if they have another grade to calculate.</p>

<pre><code> Console.Write("Do you have another grade to calculate? ");
        moreGradesToCalculate = Console.ReadLine();
        moreGradesToCalculate = moreGradesToCalculate.ToUpper();
</code></pre>

<p>I want to display a dialog box with the options of Yes or No. </p>

<p>I want to be able to run the program again, if the DialogResult is Yes, and do something else if the result is No.</p>
