title: How to capture the event when WPF combobox item is click, or selected by Enter key?
body: <p>I had tried this for few hours, but it's not working.</p>
  
  <p>I have a combobox, with a few items in there, generated dynamically like a search box.</p>
  
  <p>Now I want to capture an event, when user click on the dropdown menu item, or click on the dropdown menu item.</p>
  
  <p>How to achieve this? I tried to set mouse/keyboard event handler on Combobox, but it only works on the combobox's textbox, not in the dropdown list.</p>
  
  <p>Thanks.</p>
  
  <p>Edit:
  I forgot to mention that I has custom DataTemplate on my Combobox. I tried another approach which set the event in ComboBox.ItemContainerStyle.</p>
  
  <p>
          
                
          
  
  I tried PreviewKeyDown, but it is not captured. Any idea?</p>