title: Caliburn.Micro, Enable textbox based on certain conditions (equivalent for CanExecute for a button)
body: <p>I've tried to find the answer for some time, but can I enable/disable a textbox using Caliburn.Micro with built-in conventions or do I need to make a custom binding for this feature?</p>
  
  <p>For a button named, e.g. 'Run', I can have a bool property called 'CanRun'. But the same doesn't seem to work for textboxes.</p>