title: How can I show a Balloon Tip over a textbox?
body: <p>I have a C# WPF application using XAML and MVVM. My question is: How can I show a balloon tooltip above a text box for some invalid data entered by the user?</p>
  
  <p>I want to use Microsoft's <a href="http://msdn.microsoft.com/en-us/library/aa511451.aspx" rel="noreferrer">native balloon control</a> for this. How would I implement this into my application?</p>