将 jQuery 自动完成应用于克隆元素 [英] Apply jQuery autocomplete to cloned element

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问题描述

我正在使用 jQuery 自动完成,它对现有元素运行良好,但不适用于动态添加元素.

I am using jQuery autocomplete which is working fine with existing element but not with dynamically added element.

这是我的自动完成代码(我做了一些更改)

Here is my autocomplete code (Which I have changed a bit)

$(function() {

        (function( $ ) {
        $.widget( "ui.combobox", {
            _create: function() {
                var self = this,
                    select = this.element.hide(),
                    selected = select.children( ":selected" ),
                    value = selected.val() ? selected.text() : "";
                var input = this.input = $( ".editableCombobox" )    // your input box
                    //.insertAfter( select )
                    .val( value )
                    .autocomplete({
                        delay: 0,
                        minLength: 0,
                        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"
                                            ), "$1" ),
                                        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 );
                };

                this.button = $( "<button type='button'>&nbsp;</button>" )
                    .attr( "tabIndex", -1 )
                    .attr( "title", "Show All Items" )
                    .insertAfter( input )
                    .button({
                        icons: {
                            primary: "ui-icon-triangle-1-s"
                        },
                        text: false
                    })
                    .removeClass( "ui-corner-all" )
                    //.addClass( "ui-corner-right ui-button-icon" )
                    .live('click',function() {
                        // close if already visible
                        if ( $(this).prev().autocomplete( "widget" ).is( ":visible" ) ) {
                            $(this).prev().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
                         $(this).prev().autocomplete( "search", "" );
                         $(this).prev().focus();
                    });
            },

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

        $( "#combobox" ).combobox();
        $( "#toggle" ).live('click',function() {
            $( "#combobox" ).toggle();
        });

        });  

这是我添加新元素的代码

Here is my code which adds new element

var selectedRow = $('#contactGroup'+rowId);
    var clonedRow = selectedRow.clone();  
selectedRow.after(clonedRow);   

在阅读了许多类似的问题后,我认为 .live 可能会有所帮助,但不确定在哪里使用它.

After reading many similar questions I think .live might help but not sure where to use it.

我尝试删除 live.

自动完成的新代码

$(function() {

        (function( $ ) {
        $.widget( "ui.combobox", {
            _create: function() {
                var self = this,
                    select = this.element.hide(),
                    selected = select.children( ":selected" ),
                    value = selected.val() ? selected.text() : "";
                var input = this.input = $( ".editableCombobox" )    // your input box
                    //.insertAfter( select )
                    .val( value )
                    .autocomplete({
                        delay: 0,
                        minLength: 0,
                        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"
                                            ), "$1" ),
                                        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 );
                };

                this.button = $( "<button type='button'>&nbsp;</button>" )
                    .attr( "tabIndex", -1 )
                    .attr( "title", "Show All Items" )
                    .insertAfter( input )
                    .button({
                        icons: {
                            primary: "ui-icon-triangle-1-s"
                        },
                        text: false
                    })
                    .removeClass( "ui-corner-all" )
                    .addClass( "ui-corner-right ui-button-icon" )
                    .click(function() {
                        // close if already visible
                        if ( $(this).prev().autocomplete( "widget" ).is( ":visible" ) ) {
                            $(this).prev().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
                         $(this).prev().autocomplete( "search", "" );
                         $(this).prev().focus();
                    });
            },

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

        $( "#combobox" ).combobox();
        $( "#toggle" ).click(function() {
            $( "#combobox" ).toggle();
        });

        });

在clone方法中绑定新添加的元素

Binding newly added element in clone method

 var selectedRow = $('#contactGroup'+rowId);
        var clonedRow = selectedRow.clone();  
    selectedRow.after(clonedRow);   
 $(('#contactGroup'+rowId) .editableCombobox).autocomplete( "search", "" );

推荐答案

据我所知,您不能在自动完成时使用 'live'.

You can't use 'live' on autocomplete, as far as I know.

将您的自动完成选项放在一个需要字段作为参数的函数中,您希望在该函数上应用自动完成方法.

Place your autocomplete options in a function that expects the field as parameter, on which you want to apply the autocomplete method.

function enable_autocomplete(InputField) {
    $(InputField).autocomplete({
        source: availableTags
    });
}

然后,在克隆字段后,使用克隆的字段调用此函数.

Then, after cloning the field, call this function with the cloned field.

enable_autocomplete(ClonedField);

我给你写了一个简单的例子,让你更容易理解我想说的是什么;-)

编辑:我根据来自 jQueryUI 网站的组合框示例编写了另一个示例.

这篇关于将 jQuery 自动完成应用于克隆元素的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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