treegrid expandTo

[crosemffet]

I'm trying to make a function to expand my treegrid to specific node, based on the result of the post.
sometimes works, and sometimes not..
what's wrong...?
function getLastState(){
   $.post('jq-ajaxJson.php?action=getLastState', function(data) {
      $('#tg').treegrid('expandTo', data);
      $('#tg').treegrid('expand', data);
   });
}
thanks in advance.

[stworthy]

When calling 'expandTo' method, the node id value should be passed to expand and scroll to that node. If the specified node is not exists, the expanding action will fail. Be sure to confirm if the 'data' returned from your 'jq-ajaxJson.php' is correct.