title: Pause execution when a watch variable changes?
body: <p>Is it possible to break execution when a watch variable (not a property, just a normal variable) changes to see where the change occurred? I searched and found <a href="https://stackoverflow.com/questions/4794646/vb-net-add-watch-stop-when-value-changes">this question</a> which relates to properties it seems which is not what I'm looking for.</p>
  
  <p>This variable is used several times in several thousand lines of code, but it is only changed from <code>null</code> when a problem happens. We are trying to track that problem down.</p>