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

The problem is, that you are assigning the html to #sub_type right after the ajax JSON call. You should assign it in the ajax callback function like this:

$("#type").change(function(){
  $.getJSON("ajax/add_subcathegory.php",{id: $(this).val(), ajax: 'true'}, function(j){
    var options = '';
    for (var i = 0; i < j.length; i++) {
      options += '' + j[i].name + '';
    }
    $("#sub_type").html(options);
  });    
});