title: CheckComboBox : How to prevent a combobox from closing after a selection is clicked?
body: <p>I've got a combobox and it's populated with a bunch of checkboxes. I wish the user to be able to click multiple times before the combobox closes (or is closed by the user themselves). The problems right now is that each time a checkbox is clicked, the combobox closes, forcing the user who wants to select multiple options to re-open it several times.</p>
  
  <p>I've found other questions on the same subject but those apply to Silverlight, Qt etc. comparing the tags.</p>
  
  <p>I've tried setting <em>StayOpenOnEdit</em> but that didn't do the trick. As far I could see, there's no property addressing my issue. That creates a suspicion that I might be barning up the wrong component all together.</p>
  
  <ol>
  <li>How do I prevent the combobox to close automatically after a click in a checkbox in it?</li>
  <li>Is there a more suitable component for such task and, if so, what's its name?</li>
  </ol>
  
  <p>Please note that even if the answer to #2 is "yes", I'm still curious of #1 for purely academic reasons.</p>
  
  <p>I've played with toggle button and list box, as someone suggested in a post. However, the that led only to an always fully shown list of all the checkboxes with some greyish thing behind it (which I'm assuming is the toggler). Perhaps I did something less clever in the mark-up.</p>
  
  <pre><code>&lt;ToggleButton HorizontalAlignment="Left" 
                Margin="550,62,0,0" 
                VerticalAlignment="Top"
                Width="100"&gt;
    &lt;ListBox x:Name="listBox1" 
               HorizontalAlignment="Left" 
               Height="100"
               VerticalAlignment="Top" Width="100"&gt;
      &lt;CheckBox x:Name="checkBox3" Content="CheckBox"/&gt;
      &lt;CheckBox x:Name="checkBox4" Content="CheckBox"/&gt;
    &lt;/ListBox&gt;
  &lt;/ToggleButton&gt;
  </code></pre>
  
  <p>The point is to achieve <a href="http://wpftoolkit.codeplex.com/wikipage?title=CheckComboBox&amp;referringTitle=Home" rel="nofollow">something like this</a> but it needs to be a standard WPF control (the concatenated line of all selected items is nice but not a must). Also, I've read the complaints that the binding and handling is not fully developed yet and I feel a bit suspicious.</p>