title: Kendo UI - sorting grid by date with null values
body: <p>for my project I need to sort the contents of a KendoUI Grid by a Date column, where nulls are allowed.</p>
  
  <p>Currently I use something like this:</p>
  
  <pre><code>var grid = $('#MyGrid').data('kendoGrid');
  grid.dataSource.sort({ field: 'DateColumnName', dir: 'asc' });
  </code></pre>
  
  <p>Problem is that I need the rows having the <code>DateColumnName</code> property <code>null</code> appear after those that have some value (not before, like they do now).</p>
  
  <p>I found some solutions using some undocummented <code>grid.sortable.compare</code> property, but I create the grid in MVC and can't access the mentioned property after the grid has been created.</p>
  
  <p>Does anyone have any idea on how to achieve this?</p>