title: Pass the array list to the WCF application
body: <p>I am new to WCF.
  I have a scenario where i have <img src="https://i.stack.imgur.com/TLQ9O.jpg" alt="Error while passing ArrayList">.</p>
  
  <p>When i am trying to pass the array list it giving the error.
  Please, have the look to image.</p>
  
  <p><strong>ICommissionService Definition</strong> </p>
  
  <pre><code>[GeneratedCode("System.ServiceModel", "4.0.0.0")]
  [ServiceContract(ConfigurationName = "FPCommission.ICommissionService")]
  public interface ICommissionService
  {
     [OperationContract(Action = "http://tempuri.org/ICommissionService/GetCommisionResponse",
                        ReplyAction = "http://tempuri.org/ICommissionService/GetCommisionResponseResponse")]
     object[] GetCommisionResponse(object[] loc_);
  }
  </code></pre>
  
  <p>I am still not get the solution.</p>