title: MDI Implementation in WPF
body: <p>How can I implement an MDI application in WPF?
  In windows forms I was used to write code like this: </p>
  
  <pre><code>Form2 oForm2 = new Form2();
              oForm2.MdiParent = this;
              oForm2.Show();
  </code></pre>
  
  <p>How can I accomplish the same thing in WPF?</p>