title: How to pass List<ABC> to WCF test client
body: <p>I have <code>DataContract</code> as below</p>
  
  <pre><code>[DataContract]
      public class Test
      {
          public List&lt;Validation&gt; val { get; set; }
      }
  </code></pre>
  
  <p>and my <code>OperationContract</code> as below</p>
  
  <pre><code>public bool TestValidation(Test t, out string message)
          {
              return ValidationUtility.ValidateFields(t.val, out message);
          }
  </code></pre>
  
  <p>I am not getting how to set value for Test.val on <code>WCF Test Client</code></p>
  
  <p><img src="https://i.stack.imgur.com/8WJT5.png" alt="enter image description here"></p>