jQuery UI Autocomplete Combobox Very Slow With Large Select Lists

Question

I\'m using a modified version of the jQuery UI Autocomplete Combobox, as seen here: http://jqueryui.com/demos/autocomplete/#combobox

For the sake of this questio

Answer 1

What I have done I am sharing:

In the _renderMenu, I've written this:

var isFullMenuAvl = false;
    _renderMenu: function (ul, items) {
                        if (requestedTerm == "**" && !isFullMenuAvl) {
                            var that = this;
                            $.each(items, function (index, item) {
                                that._renderItemData(ul, item);
                            });
                            fullMenu = $(ul).clone(true, true);
                            isFullMenuAvl = true;
                        }
                        else if (requestedTerm == "**") {
                            $(ul).append($(fullMenu[0].childNodes).clone(true, true));
                        }
                        else {
                            var that = this;
                            $.each(items, function (index, item) {
                                that._renderItemData(ul, item);
                            });
                        }
                    }

This is mainly for server side request serving. But it can used for local data. We are storing requestedTerm and checking if it matches with ** which means full menu search is going on. You can replace "**" with "" if you are searching full menu with "no search string". Please reach me for any type of queries. It improves performance in my case for at least 50%.