title: How to validate one field related to another's value in ASP .NET MVC 3
body: <p>I had two fields some thing like phone number and mobile number. Some thing like..</p>
  
  <pre><code>    [Required]
      public string Phone { get; set; }
  
      [Required]
      public string Mobile{ get; set; }
  </code></pre>
  
  <p>But user can enter data in either one of it. One is mandatory. How to handle them i.e how to disable the required field validator for one field when user enter data in another field and viceversa.  In which event i have to handle it in javascript and what are the scripts i need to add for this. Can anyone please help to find the solution...</p>