title: DataSourceRequest always null
body: <p>I am trying to use Kendo's server side paging/filtering/sorting, and as of now I'm doing it as follows:</p>
  
  <p>datasource is :</p>
  
  <pre><code>var QueueMessages = {
      type: "aspnetmvc-ajax",
      transport: {
          read: {
              url: "api/QueueMessages/wut",
              dataType: "json",
              type: "GET"
          }
      },
      schema: {
          model: ........
      },
      pageSize: 10,
      serverPaging: true,
      serverFiltering: true,
      serverSorting: true,
      filter: ....
  };
  </code></pre>
  
  <p>and in the api controller:</p>
  
  <pre><code>    [HttpGet]
      [ActionName("wut")]
      public DataSourceResult wut([DataSourceRequest]DataSourceRequest request)
      {
          return messages.ToDataSourceResult(request);
      }
  </code></pre>
  
  <p>However, <code>DataSourceRequest request</code> is always <code>null</code></p>
  
  <p>i have tried some solutions i found to similar problems looking for missing .js, or <a href="https://stackoverflow.com/questions/22758815/kendu-ui-datasource-read-event-has-null-request">this</a> to no avail.</p>