title: What does AdornedElementPlaceholder exactly do when we use it in validation controlTemplate?
body: <p>After going through several articles and examples showing usage of </p>
  
  <blockquote>
    <p>AdornedElementPlaceholder </p>
  </blockquote>
  
  <p>i am still confused that what is the exact functionality it incorporates to xaml validation?</p>