title: override user controls' methods
body: <p>In my user control</p>
  
  <pre><code>public virtual void Test()
  {
      MessageBox.Show("Test");
  }
  </code></pre>
  
  <p>And my main window</p>
  
  <pre><code>public partial class MainWindow : Window
  {
      public MainWindow()
      {
          InitializeComponent();
      }
  }
  </code></pre>
  
  <p>As you see that my main window already have inheritance window
  so how do i override my Test void in MainWindow?</p>