title: Mahapps Metro: Show non-modal auto-closing message dialog at the bottom of the window
body: <p>Is it possible in Mahapps Metro to show a standard message dialog at the bottom of the <code>MetroWindow</code> just like the <a href="http://windows.github.com" rel="noreferrer">Github for Windows</a> app does? I want to notify the user about exceptions, but without the need to close this dialog before he/she continues using the app.</p>
  
  <p>Until now I use the following code to open the message dialog, but this is a blocking way and it appears at the center of the <code>MetroWindow</code>:</p>
  
  <pre><code>await this.ShowMessageAsync("My title", "My error message");
  </code></pre>
  
  <p>I want to create a <code>Github for Windows</code> like dialog. You can see a screenshot here: </p>
  
  <p><a href="http://sloppyui.tumblr.com/image/68176091078" rel="noreferrer"><img src="https://i.stack.imgur.com/DtMhR.png" alt="screenshot"></a></p>
  
  <p>In <code>Github for Windows</code> you can undo any operation, but this message only appears some seconds and than auto-hides.</p>