title: UWP - Get the text changes of a Windows::UI::Xaml::Controls::TextBox.TextChanged event
body: <p>trying to understand how to get the text changes from a UWP  Windows::UI::Xaml::Controls::TextBox control when its TextChanged event fires. I know I can store and compare the text before and after and if I have to I will do my own processing to determine what changed but the text can be very long and this can't be right or efficient. Every other platform (Android, iOS, Mac) tell you where the changes happened and what string was inserted. I'm pretty new to UWP so maybe I'm missing something?</p>
  
  <pre><code>void XAMLPage::Edit_TextChanged(Platform::Object^ sender, Windows::UI::Xaml::Controls::TextChangedEventArgs^ e)
  </code></pre>
  
  <p>Is there any way to determine what specifically changed about the text from this event?</p>