选择$ .ajax Jquery的父级？

Question

如何选择$ .ajax的父元素,或者触发$ .ajax的元素的父元素.我需要某种参考,所以我可以将结果数据应用到它:

var a = $a.val();
var b = $b.val();

 $.ajax({
      type: "POST",
      url: "/Controller/Action",
      data: { a: a, b: b },
      success: function (data) {

          var values = data.values,
              $elements = $();
              for (i = 0; i < 142; i++) {
                  $elements = $elements.add($("<div class='single'>").css('height', values[i]).css('margin-top', 26 - valuesG[i]));
              }
                //Here it should reference $(this).parent().parent().. something
               //and not :last, because there are many .second elems... 
              //not only :last is being changed?

              $elements.appendTo($(".second:last"));
              $(".second:last").children(".single").addClass("ui-selected");
      },
      traditional: true
});   

$(this).parent()在ajax成功函数中返回jQuery() 任何想法？

Answer 1

使用上下文选项:

$.ajax({
    url: "test.html",
    context: document.body,
    success: function(){
      $(this).addClass("done");
   }
});

jQuery参考