title: JsonConvert string to Collection
body: <p>I get this json format from an API:</p>
  
  <pre><code>"url_service": "",
  "Description": null,
  "Target": "5,6",
  "Category ": "2"
  </code></pre>
  
  <p>I'm trying to deserialize the json into a model. The trouble is with the "Target" field which is supposed to be an ICollection of int.
  Here is my model:</p>
  
  <pre><code>public string Description{ get; set; }
  public ICollection&lt;int&gt; Target{ get; set; }
  public int Category { get; set; }
  </code></pre>
  
  <p>Is there a way to process the Json before it gets serialised in order to make a collection out of the comma separated string? </p>