title: UInt throwing OverflowException
body: <p>On entering negative values to a textbox I get an error saying <code>Unhandled Exception: System.OverflowException: Value was either too large or too small for a UInt32.</code></p>
  
  <p>Here is my code :</p>
  
  <pre><code> UInt32 n = Convert.ToUInt32(textBox2.Text);    
           if (n &gt; 0)
            //code 
           else
           //code
  </code></pre>