title: How to Block past date or selected dates in XamDateTimeInput
body: <p>I have infragistics <strong>XamDateTimeInput</strong> control. I want to prevent users to select some configured dates or past dates(Disable the dates). Here is the example which i found in a train booking site. They disabled the past dates.</p>
  
  <p><img src="https://i.stack.imgur.com/rtyoJ.png" alt="enter image description here"></p>
  
  <p>Thanks.</p>