Question

$("#Auto").autocomplete({
minLength: 4,
type: 'GET',
source: function (request, response) {
    var term = request.term;
    if (term in cache) {
        response(cache[term]);
        return;
    }
    var url = '<%=Url.Action("AutoComplete", "Thing", new {area = "Admin"}) %>' + "?terms=" + request.term;
    lastXhr = $.getJSON(url, request, function (data, status, xhr) {
        cache[term] = data;
        if (xhr === lastXhr) {
            response(data);
        }
    });
}
})
    .data("autocomplete")._renderItem = function (ul, item) {
          return $("<li></li>")
.data("item.autocomplete", item)
    .append("<a> Thingy1: " + item.Prop1 + " Thingy2: " + item.Prop2 + "<br>" + "</a>")
    .appendTo(ul);
      };

Assume #Auto, Prop1 and Prop2 exist and there is a controller called Thing. This does work on another page but for some reason I get this error on a page:

$("#Auto").autocomplete({minLength: 4, type: "GET", source: function (request, response);var term = request.term;if (term in cache) {response(cache[term]);return;}var url = '<%=Url.Action("AutoComplete", "Thing", new {area = "Admin"}) %>' + "?terms=" + request.term;lastXhr = $.getJSON(url, request, function (data, status, xhr) {cache[term] = data;if (xhr === lastXhr) {response(data);}});}}).data("autocomplete") is undefined

I have the following files loaded:

jquery-ui-1.8.2.custom.min.js
jquery-1.4.2.min.js
jquery.autocomplete.pack.js
jquery.ajaxQueue.js
jquery.bgiframe.min.js
thickbox-compressed.js
jquery-ui-1.8.2.custom.css
jquery-require.1.1.packed.js

plus some other custom stuff.

Is there anything I am missing, or do I have too many files included?

Answer 1

First of all, cleaning up your code (which looks to be lazily cut & pasted) and explaining what you are trying to do would help.

However, at first glance I can see your error says:

.data(“autocomplete”) is undefined

Which would imply that no elements called “autocomplete” exist on the page.
Try changing

.data("autocomplete")

to

.data("#Auto")

if you are trying to store the data contained in your autocomplete control for later use.