title: How to check if property bound from inside custom control
body: <p>I have custom control which have <code>OperationMode</code> and depending on this property I need to do certain things.</p>
  
  <p>I also have other dependency properties like <code>Property1</code> and <code>Property2</code>. I need to make sure that when user uses control in one way (certain OperationMode) then control doesn't have any bindings to <code>Property1</code></p>
  
  <p>So, I wonder if there any way to programmaticaly check to make sure that property have or don't have bindings associated with specific dependency property?</p>