Dropdown populate ajax

Question

I have the following issue: When i select an element from a drop down i want to auto populate another drop down via ajax. the idea is that the subcategory(sub_type) doesn\'t

Answer 1

Assuming that the Ajax success function is indeed called, change the function code to:

          var $subType = $("#sub_type");
          $subType.empty();
          $.each(j, function () {
            $subType.append($('').attr("value", this.id).text(this.name));
          });

Your main problems currently are:

• the html function is called only once because it's outside of the sucess function.
• the elements in the Ajax data have the keys id and name and not optionValue and optionDisplay

Update:

The returned JSON is invalid. String have to be quoted with double quotes, not single quotes. As a result, the getJSON() call fails silently.