title: Can Date attribute allow null value?
body: <p>I have created a Model file for my MVC project that contains the following:</p>
  
  <pre><code>Public Class Player
  
      Public Property FirstName As String
      Public Property LastName As String
      Public Property GoesBy As String
      Public Property Birthdate As Date
  
  End Class
  </code></pre>
  
  <p>I didn't mark the <code>Birthdate</code> field as a Required field, but it won't accept nulls.  How can I add a validation or something else to allow for nulls?  Or is that not possible and I have to just insert <code>1900-01-01</code> or something similar?</p>