title: IsNumeric function in c#
body: <p>I know it's possible to check whether the value of a text box or variable is numeric using try/catch statements, but <code>IsNumeric</code> is <em>so</em> much simpler.  One of my current projects requires recovering values from text boxes.  Unfortunately, it is written in C#.</p>
  
  <p>I understand that there's a way to enable the Visual Basic <code>IsNumeric</code> function in Visual C# by adding a reference to Visual Basic, though I don't know the syntax for it.  What I need is a clear and concise walkthrough for enabling the <code>IsNumeric</code> function in C#. I don't plan on using any other functions indigenous to Visual Basic.</p>