title: Validate DateFormat In Mvc
body: <p>I have a property ExpiredDate define in MVC</p>
  
  <pre><code>[Required]
          [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}")]
          public DateTime? ExpirationDate { get; set; }
  </code></pre>
  
  <p>I want to Validate if Date on a page is not in correct format.
  The format of date I am using is <em><code>MM/dd/yyyy</code></em>.</p>