title: C# WPF IsEnabled using multiple bindings?
body: <p>I have a WPF xaml file describing a section of a GUI and I'd like the enabling/disabling of a particular control to be dependent on two others. The code looks something like this at the moment:</p>
  
  <pre><code>&lt;ComboBox Name="MyComboBox"
            IsEnabled="{Binding ElementName=SomeCheckBox, Path=IsChecked}"/&gt;
  </code></pre>
  
  <p>But I'd like it to be dependant on another checkbox as well so something like:</p>
  
  <pre><code>&lt;ComboBox Name="MyComboBox"
            IsEnabled="{Binding ElementName=SomeCheckBox&amp;AnotherCheckbox, Path=IsChecked}"/&gt;
  </code></pre>
  
  <p>What's the best way to go about that? I can't help feeling I'm missing something obvious or going about this the wrong way?</p>