title: Erase children of an InkCanvas
body: <p>I have an <code>InkCanvas</code> on a window in which I allow the user to draw with a stylus, touch, or mouse. I also allow the user to add text. The user taps an "add text" button, then taps where on the canvas they would like their text. A textbox appears there, allowing them to type. On enter or lost focus I create a <code>ContentControl</code> and add it to <code>myInkCanvas.Children</code>.</p>
  
  <p>I would like the user to be able to erase the text they have created when the <code>InkCanvas</code> is in erase mode (I am using <code>EraseByPoint</code>). I've attempted to capture the <code>MouseEnter</code> and <code>PreviewMouseMove</code> events of the content controls, but neither seem to fire. </p>
  
  <p>Is there an event that I can capture? Is there a better way to handle this scenario? Is it even possible?</p>