title: Creating a custom event that captures when a value has changed
body: <p>I have this small problem. I want to capture every time a property is changed.</p>
  
  <p>This property is wrapped inside another user control:</p>
  
  <pre><code>var color = (CustomWPFColorPicker.ColorPickerControlView) elementHost1.Child;
  color.CurrentColor &lt;--This property.
  </code></pre>
  
  <p>How can I detect when the CurrentColor property has changed?</p>