title: Add to Existing Model based on a POCO with need to add to List<T>
body: <p>I have a poco model that looks like this:</p>
  
  <pre><code>public int Id {get; set;
  public string EmailAddress { get; set; }
  public int? GenderTypeId { get; set; }
  public List&lt;FindPersonResultsViewModel&gt; findPersonResultsViewModel { get; set; }
  </code></pre>
  
  <p>The List FindPersonResultsViewModel contains </p>
  
  <pre><code>public string FirstName { get; set; }
  public string LastName { get; set; } 
  </code></pre>
  
  <p>At first on a Post I have the following data</p>
  
  <pre><code>public IActionResult FindPerson (FindPersonViewModel findPersonViewModel)
  
      Id : 4432
      EmailAddress:  "johnsmith@test.com"
      findPersonResultsViewModel  :  null 
  </code></pre>
  
  <p>So what I want to do is hydrate this list view model with some dummy data ( I will add real data later...</p>
  
  <p>Seems like I'm having trouble with knowing how to do this, new up a list of this ?  </p>
  
  <pre><code>findPersonViewModel.findPersonResultsViewModel.Add({  ??
  
  List&lt;FindPersonResultsViewModel&gt; findPersonResultsViewModel = 
      new List&lt;FindPersonResultsViewModel&gt;();   
  // How to add data , especially to that model that contains the list   findPersonViewModel  ??
  </code></pre>