Don’t forget to import the following multiple-select.js and multiple-select.css for the content in HTML (select is used in manage.html)
<select class="selectJl" name="selectJl" multiple="multiple">
Copy the codeSome ways to use multi-check boxes are as follows
Render all options
Var jlData = data.rows let HTML = '' $('.selectJl').empty() jldata.foreach ((m) => {HTML += '<option value="${m.id}">${m.code}</option>` }) $('.selectJl').append(html) $(".selectJl").fSelect();Copy the codeGets the selected options
$('.fs-options').find(".fs-option").removeClass('selected') const ids = data.rows.map((m) => { return m.id }) $('.fs-option').each(function (){ const id = $(this).attr('data-value') if(ids.includes(id)){ $(this).addClass('selected')}}) $('.selectJl').fSelect('reloadDropdownLabel'Copy the codeClear all options
$('.fs-options').find(".fs-option").removeClass('selected')
$('.selectJl').fSelect('reloadDropdownLabel')
Copy the codeAll ids of the option are checked
let ids = []
$('.fs-option.selected').each(function (i, el) {
ids.push($(el).attr('data-value'))
})
Copy the codeContents of multiple-select js (multiple-select.js)
(function($) {
$.fn.fSelect = function(options) {
if (typeof options == 'string' ) {
var settings = options;
}
else {
//默认配置项
var settings = $.extend({
placeholder: ' 请选择 ',//占位符，默认显示什么
numDisplayed:30,//设置页面上可以显示几个选项（超出这个数量将会显示选择了n项）
overflowText: '选择了{n}项',//超出这个数量将会显示"选择了n项"
searchText: '搜索',//搜索框中占位符显示什么字
showSearch: true//是否显示搜索框
}, options);
}
/**
* Constructor
*/
function fSelect(select, settings) {
this.$select = $(select);
this.settings = settings;
this.create();
}
/**
* Prototype class
*/
fSelect.prototype = {
create: function() {
var multiple = this.$select.is('[multiple]') ? ' multiple' : '';
this.$select.wrap('<div class="fs-wrap' + multiple + '"></div>');
this.$select.before('<div class="fs-label-wrap"><div class="fs-label">' + this.settings.placeholder + '</div><span class="fs-arrow"></span></div>');
this.$select.before('<div class="fs-dropdown hidden"><div class="fs-options"></div></div>');
// this.$select.addClass('hidden');
this.$select.addClass('visibility-hidden');
this.$wrap = this.$select.closest('.fs-wrap');
//添加全选和清空按钮
var BtnFixed = '<div class="btnFixed"><button class="buttonDefault" id="selectAllBtn" type="button">全选</button><button class="buttonDefault" id="clearAllBtn" type="button">清空</button></div>';
this.$wrap.find('.fs-dropdown').append(BtnFixed);
this.reload();
},
reload: function() {
//如果设置显示搜索框，执行下面方法
if (this.settings.showSearch) {
var search = '<div class="fs-search"><input type="search" placeholder="' + this.settings.searchText + '" /></div>';
this.$wrap.find('.fs-dropdown').prepend(search);
}
var choices = this.buildOptions(this.$select);
//获取到所有option选项
this.$wrap.find('.fs-options').append(choices);
//选中当前已选的值
var valArr = this.$select.val();
// if(valArr.length){
if(valArr){
var $fsOption = this.$wrap.find('.fs-option');
valArr.forEach(function(currentValue){
$fsOption.each(function(){
if(currentValue == $(this).attr('data-value')){
$(this).addClass("selected");
}
});
});
}
//获取到选中状态的选项
this.reloadDropdownLabel();
},
destroy: function() {
this.$wrap.find('.fs-label-wrap').remove();
this.$wrap.find('.fs-dropdown').remove();
// this.$select.unwrap().removeClass('hidden');
this.$select.unwrap().removeClass('visibility-hidden');
},
//获取select的option选项，并赋值到插件自定义的每一选项div里
buildOptions: function($element) {
var $this = this;
var choices = '';
$element.children().each(function(i, el) {
var $el = $(el);
//支持 optiongroup
if ('optgroup' == $el.prop('nodeName').toLowerCase()) {
choices += '<div class="fs-optgroup">';
choices += '<div class="fs-optgroup-label">' + $el.prop('label') + '</div>';
choices += $this.buildOptions($el);
choices += '</div>';
}
else {
var selected = $el.is('[selected]') ? ' selected' : '';
choices += '<div class="fs-option' + selected + '" data-value="' + $el.prop('value') + '"><span class="fs-checkbox"><i></i></span><div class="fs-option-label">' + $el.html() + '</div></div>';
}
});
return choices;
},
//每次加载时判断一下插件自定义的每一选项div哪些是选中状态，将选中状态对应的文字获，push到一个数组labelText里，页面上显示出来的文字就是数组中取到的文字
reloadDropdownLabel: function() {
var settings = this.settings;
var labelText = [];
this.$wrap.find('.fs-option.selected').each(function(i, el) {
labelText.push($(el).find('.fs-option-label').text());
});
if (labelText.length < 1) {
labelText = settings.placeholder;
}
else if (labelText.length > settings.numDisplayed) {
labelText = settings.overflowText.replace('{n}', labelText.length);
}
else {
labelText = labelText.join(', ');
}
this.$wrap.find('.fs-label').html(labelText);
this.$wrap.find('.fs-label').attr("title",labelText);
this.$select.change();
}
}
/**
* Loop through each matching element
*/
return this.each(function() {
var data = $(this).data('fSelect');
if (!data) {
data = new fSelect(this, settings);
$(this).data('fSelect', data);
}
if (typeof settings == 'string') {
data[settings]();
}
});
}
/**
* Events
*/
window.fSelect = {
'active': null,
'idx': -1
};
function setIndexes($wrap) {
$wrap.find('.fs-option:not(.hidden)').each(function(i, el) {
$(el).attr('data-index', i);
$wrap.find('.fs-option').removeClass('hl');
});
$wrap.find('.fs-search input').focus();
window.fSelect.idx = -1;
}
function setScroll($wrap) {
var $container = $wrap.find('.fs-options');
var $selected = $wrap.find('.fs-option.hl');
var itemMin = $selected.offset().top + $container.scrollTop();
var itemMax = itemMin + $selected.outerHeight();
var containerMin = $container.offset().top + $container.scrollTop();
var containerMax = containerMin + $container.outerHeight();
if (itemMax > containerMax) { // scroll down
var to = $container.scrollTop() + itemMax - containerMax;
$container.scrollTop(to);
}
else if (itemMin < containerMin) { // scroll up
var to = $container.scrollTop() - containerMin - itemMin;
$container.scrollTop(to);
}
}
//插件选项的点击事件
$(document).on('click', '.fs-option', function() {
var $wrap = $(this).closest('.fs-wrap');
if ($wrap.hasClass('multiple')) {
var selected = [];
$(this).toggleClass('selected');
$wrap.find('.fs-option.selected').each(function(i, el) {
selected.push($(el).attr('data-value'));
});
}
else {
var selected = $(this).attr('data-value');
$wrap.find('.fs-option').removeClass('selected');
$(this).addClass('selected');
$wrap.find('.fs-dropdown').hide();
}
$wrap.find('select').val(selected);
$wrap.find('select').fSelect('reloadDropdownLabel');
});
$(document).on('keyup', '.fs-search input', function(e) {
if (40 == e.which) {
$(this).blur();
return;
}
var $wrap = $(this).closest('.fs-wrap');
var keywords = $(this).val();
$wrap.find('.fs-option, .fs-optgroup-label').removeClass('hidden');
if ('' != keywords) {
$wrap.find('.fs-option').each(function() {
var regex = new RegExp(keywords, 'gi');
if (null === $(this).find('.fs-option-label').text().match(regex)) {
$(this).addClass('hidden');
}
});
$wrap.find('.fs-optgroup-label').each(function() {
var num_visible = $(this).closest('.fs-optgroup').find('.fs-option:not(.hidden)').length;
if (num_visible < 1) {
$(this).addClass('hidden');
}
});
}
setIndexes($wrap);
});
//显示隐藏下拉选项
$(document).on('click', function(e) {
var $el = $(e.target);
var $wrap = $el.closest('.fs-wrap');
if (0 < $wrap.length) {
if ($el.hasClass('fs-label')) {
window.fSelect.active = $wrap;
var is_hidden = $wrap.find('.fs-dropdown').hasClass('hidden');
$('.fs-dropdown').addClass('hidden');
if (is_hidden) {
$wrap.find('.fs-dropdown').removeClass('hidden');
}
else {
$wrap.find('.fs-dropdown').addClass('hidden');
}
setIndexes($wrap);
}
}
else {
$('.fs-dropdown').addClass('hidden');
window.fSelect.active = null;
}
});
$(document).on('keydown', function(e) {
var $wrap = window.fSelect.active;
if (null === $wrap) {
return;
}
else if (38 == e.which) { // up
e.preventDefault();
$wrap.find('.fs-option').removeClass('hl');
if (window.fSelect.idx > 0) {
window.fSelect.idx--;
$wrap.find('.fs-option[data-index=' + window.fSelect.idx + ']').addClass('hl');
setScroll($wrap);
}
else {
window.fSelect.idx = -1;
$wrap.find('.fs-search input').focus();
}
}
else if (40 == e.which) { // down
e.preventDefault();
var last_index = $wrap.find('.fs-option:last').attr('data-index');
if (window.fSelect.idx < parseInt(last_index)) {
window.fSelect.idx++;
$wrap.find('.fs-option').removeClass('hl');
$wrap.find('.fs-option[data-index=' + window.fSelect.idx + ']').addClass('hl');
setScroll($wrap);
}
}
else if (32 == e.which || 13 == e.which) { // space, enter
$wrap.find('.fs-option.hl').click();
}
else if (27 == e.which) { // esc
$('.fs-dropdown').addClass('hidden');
window.fSelect.active = null;
}
});
//=========================全选=====================================
$(document).on('click','#selectAllBtn', function( ) {
var $wrap = $(this).closest('.fs-wrap');
if ($wrap.hasClass('multiple')) {
var selected = [];
$wrap.find(".fs-option").addClass('selected');
$wrap.find('.fs-option.selected').each(function(i, el) {
selected.push($(el).attr('data-value'));
});
}
$wrap.find('select').val(selected);
$wrap.find('select').fSelect('reloadDropdownLabel');
});
//=========================全不选/清空=====================================
$(document).on('click','#clearAllBtn', function( ) {
var $wrap = $(this).closest('.fs-wrap');
if ($wrap.hasClass('multiple')) {
var selected = [];
$wrap.find(".fs-option").removeClass('selected');
$wrap.find('.fs-option.selected').each(function(i, el) {
selected.push($(el).attr('data-value'));
});
}
$wrap.find('select').val(selected);
$wrap.find('select').fSelect('reloadDropdownLabel');
});
})(jQuery);
Copy the codeMultiple-select style content (multiple-select.css)
.fs-wrap { position: relative; display: inline-block; width: 200px; font-size: 12px; line-height: 1; } .fs-label-wrap { position: relative; border: 1px solid #ddd; cursor: default; } .fs-label-wrap, .fs-dropdown { -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; } .fs-label-wrap .fs-label { padding: 4px 22px 4px 8px; text-overflow: ellipsis; white-space: nowrap; overflow: hidden; } .fs-arrow { width: 0; height: 0; border-left: 6px solid transparent; border-right: 6px solid transparent; border-top: 6px solid #000; position: absolute; top: 0; right: 5px; bottom: 0; margin: auto; } .fs-dropdown { position: absolute; background-color: #fff; border: 1px solid #ccc; margin-top: 5px; width: 100%; z-index: 1000; } .fs-dropdown .fs-options { max-height: 200px; overflow: auto; } .fs-search input { width: 100%; padding: 2px 4px; border: 0; } .fs-option, .fs-search, .fs-optgroup-label { padding: 6px 8px; border-bottom: 1px solid #eee; cursor: default; } .fs-option { cursor: pointer; } .fs-option.hl { background-color: #f5f5f5; } .fs-wrap.multiple .fs-option { position: relative; padding-left: 30px; } .fs-wrap.multiple .fs-checkbox { position: absolute; display: block; width: 30px; top: 0; left: 0; bottom: 0; } .fs-wrap.multiple .fs-option .fs-checkbox i { position: absolute; margin: auto; left: 0; right: 0; top: 0; bottom: 0; width: 14px; height: 14px; border: 1px solid #aeaeae; border-radius: 2px; background-color: #fff; } .fs-wrap.multiple .fs-option.selected .fs-checkbox i { background-color: rgb(17, 169, 17); border-color: transparent; background-image: url('data:image/png; base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAGCAYAAAD+Bd/7AAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAALEgAACxIB0t1+/AAAABx0RVh0U29mdHdhc mUAQWRvYmUgRmlyZXdvcmtzIENTNXG14zYAAABMSURBVAiZfc0xDkAAFIPhd2Kr1WRjcAExuIgzGUTIZ/AkImjSofnbNBAfHvzAHjOKNzhiQ42IDFXCDivaa xAJd0xYshT3QqBxqnxeHvhunpu23xnmAAAAAElFTkSuQmCC'); background-repeat: no-repeat; background-position: center; } .fs-wrap .fs-option:hover { background-color: #f5f5f5; } .fs-optgroup-label { font-weight: bold; } .hidden { display: none; } /* Customize the project */. Visibility -hidden {display: block; visibility: hidden; position: absolute; top: 0; } .deptWrap, .fs-wrap, .fs-label-wrap { width: 218px; height: 30px; border-radius: 2px; border-color: #777; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; } .fs-wrap { position: relative } .fs-label-wrap .fs-label { padding: 0; height: 30px; line-height: 30px; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; padding-left: 6px; padding-right: 10px; } .btnFixed { height: 28px; text-align: center; } .btnFixed > .buttonDefault { width: 60px; height: 24px; background: rgb(86, 148, 254); border: none; margin-left: 10px; color: #fff; margin-top: 2px; border-radius: 4px; } .btnFixed > .buttonDefault:hover { background: rgb(181, 226, 254); color: #4284f5; } .fs-search { padding: 2px 8px; } .fs-dropdown { margin-top: 0px; box-shadow: 4px 4px 4px #ddd; } .fs-wrap.multiple .fs-option.selected .fs-checkbox i { background-color: rgb(86, 148, 254); }Copy the code