title: Adding data to jQuery-Flexigrid without ajax-request
body: <p>I want to save some unneeded requests and time for displaying a table the first time and so I thought maybe I could set the initial data directly without any ajax-request. I tried it like that:</p>
  
  <pre><code>$('#testTable').flexAddData('[formatted json here]');
  </code></pre>
  
  <p>and also that</p>
  
  <pre><code>$('#testTable').addData('[formatted json here]');
  </code></pre>
  
  <p>But it hasn't any effect. Can I do that and what is the right syntax?</p>