Problems using $.ajax when creating a wigdet

Problems using $.ajax when creating a wigdet

Hi

I'm trying to create a widget, and at somepoint I need to make an ajax request using $.ajax. The problem is that I can't access the options variables in the ajax .done event. What I'm doing wrong? Here is a simplified version of the code. I'm getting  Cannot set property 'data' of undefined in line 25. If I try to work the variables outside the ajax function everything works fine. Thank you

  1. $(function(){

  3. $.widget("custom.imagesManager",{

  5. options:{
  6. url:'test.php',
  7. post_data:0,
  8. data:null;
  9. },

  11. _create: function(){
  12. this._refresh();
  13. },

  15. _refresh: function(){

  17. $.ajax({
  18. type:'POST',
  19. url:this.options.url,
  20. data:this.options.post_data,
  21. dataType: 'json',
  22.                                 cache:false
  23. })
  24. .done(function(data){
  25. this.options.data = data;
  26. });
  27.                }
  28. });
  29. });