Question

How do I set a minLength for a single element without the others been affected

EDIT:

Heres the plugin code

(function ( $ ) {
        $.widget( "ui.combobox", {
            _create: function() {
                var input,
                    self = this,
                    select = this.element.hide(),
                    selected = select.children( ":selected" ),
                    value = selected.val() ? selected.text() : "",
                    wrapper = this.wrapper = $( "<span>" )
                        .addClass( "ui-combobox" )
                        .insertAfter( select );

                input = $( "<input>" )
                    .appendTo( wrapper )
                    .val( value )
                    .addClass( "ui-state-default ui-combobox-input" )
                    .autocomplete({
                        delay: 300,
                        minLength: 2,
                        source: function( request, response ) {
                            var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
                            response( select.children( "option" ).map(function() {
                                var text = $( this ).text();
                                if ( this.value && ( !request.term || matcher.test(text) ) )
                                    return {
                                        label: text.replace(
                                            new RegExp(
                                                "(?![^&;]+;)(?!<[^<>]*)(" +
                                                $.ui.autocomplete.escapeRegex(request.term) +
                                                ")(?![^<>]*>)(?![^&;]+;)", "gi"
                                            ), "<strong>$1</strong>" ),
                                        value: text,
                                        option: this
                                    };
                            }) );
                        },
                        select: function( event, ui ) {
                            ui.item.option.selected = true;
                            self._trigger( "selected", event, {
                                item: ui.item.option
                            });
                        },
                        change: function( event, ui ) {
                            if ( !ui.item ) {
                                var matcher = new RegExp( "^" + $.ui.autocomplete.escapeRegex( $(this).val() ) + "$", "i" ),
                                    valid = false;
                                select.children( "option" ).each(function() {
                                    if ( $( this ).text().match( matcher ) ) {
                                        this.selected = valid = true;
                                        return false;
                                    }
                                });
                                if ( !valid ) {
                                    // remove invalid value, as it didn't match anything
                                    $( this ).val( "" );
                                    select.val( "" );
                                    input.data( "autocomplete" ).term = "";
                                    return false;
                                }
                            }
                        }
                    })
                    .addClass( "ui-widget ui-widget-content ui-corner-left" );

                input.data( "autocomplete" )._renderItem = function( ul, item ) {
                    return $( "<li></li>" )
                        .data( "item.autocomplete", item )
                        .append( "<a>" + item.label + "</a>" )
                        .appendTo( ul );
                };

                $( "<a>" )
                    .attr( "tabIndex", -1 )
                    .attr( "title", "Show All Items" )
                    .appendTo( wrapper )
                    .button({
                        icons: {
                            primary: "ui-icon-triangle-1-s"
                        },
                        text: false
                    })
                    .removeClass( "ui-corner-all" )
                    .addClass( "ui-corner-right ui-combobox-toggle" )
                    .click(function() {
                        // close if already visible
                        if ( input.autocomplete( "widget" ).is( ":visible" ) ) {
                            input.autocomplete( "close" );
                            return;
                        }

                        // work around a bug (likely same cause as #5265)
                        $( this ).blur();

                        // pass empty string as value to search for, displaying all results
                        input.autocomplete( "search", "" );
                        input.focus();
                    });
            },

            destroy: function() {
                this.wrapper.remove();
                this.element.show();
                $.Widget.prototype.destroy.call( this );
            }
        });
    })( jQuery );

I’m selecting which select tags must be made into comboboxes like this.

$("#tracklisting").combobox({
    selected: function(event, ui) {
        var tracklisting = $("#tracklisting").val();
        var id = $("#id").val();

        $.post('writeToDB.php', {
            id: id,
            tracklisting: tracklisting
        });
    }
})

Where do I put $("#tracklisting").autocomplete( "option", "minLength", 0 ); to set the length. I’ve tried multiple things but to no avail.

EDIT:
Here is a jsfiddle link to the project. combox can stay on the default but combobox2 must have a minlegth of 0. http://jsfiddle.net/5cMjk/4/

Answer 1

Did you try this:

$("#tracklisting").autocomplete({ minLength: 2 });

See also: http://jqueryui.com/demos/autocomplete/#option-minLength

Demo: http://jsfiddle.net/5cMjk/1/