title: MenuItem.IsEnabled Binding on a public bool
body: <p>i have MenuItem in my WPF App:</p>
  
  <pre><code>&lt;MenuItem Header="_Login" Click="Login_Click" Name="mi_Login"&gt;
  </code></pre>
  
  <p>How can i dynamically bind the IsEnabled property on my local bool var:</p>
  
  <pre><code>public bool _IsConnected
      {
          get { return this.IsConnected; }
          set { this.IsConnected = value; }
      }
  </code></pre>
  
  <p>?</p>