title: How to detect plus key in wpf?
body: <p>I know i can use below code to determine the Enter key in keyboard </p>
  
  <pre><code>if (e.Key == Key.Return)
  {
      // do something
  }
  </code></pre>
  
  <p>But i want to know what is the code for "+" and "-" ?</p>
  
  <p>Can anyone help me please.</p>