//1.下载formSelects-v4

//然后引入formSelects.css

<link rel="stylesheet" href="formSelects-v4.css" />

//2.模块化使用

<script src="layui.js" type="text/javascript" charset="utf-8"></script>

<script type="text/javascript">

    //全局定义一次, 加载formSelects

    layui.config({

        base: '../src/' //此处路径请自行处理, 可以使用绝对路径

    }).extend({

        formSelects: 'formSelects-v4'

    });

    //加载模块

    layui.use(['jquery', 'formSelects'], function(){

        var formSelects = layui.formSelects;

    });

</script>

//3.非模块化使用

<script src="layui.all.js" type="text/javascript" charset="utf-8"></script>

<script src="formSelects-v4.js" type="text/javascript" charset="utf-8"></script>

<script type="text/javascript">

    var formSelects = layui.formSelects;

</script>

/**

 * 1.获取选中数据

 *

 * formSelects.value(ID, TYPE);

 *

 * @param ID    xm-select的值

 * @param TYPE  all | val | valStr | name | nameStr

 */

var formSelects = layui.formSelects;

formSelects.value('select1');               // [{"name":"上海","val":"2"},{"name":"深圳","val":"4"}]

formSelects.value('select1', 'all');        // [{"name":"上海","val":"2"},{"name":"深圳","val":"4"}]

formSelects.value('select1', 'val');        // ["2","4"]

formSelects.value('select1', 'valStr');     // 2,4

formSelects.value('select1', 'name');       // ["上海","深圳"]

formSelects.value('select1', 'nameStr');    // 上海,深圳

/**

 * 2.设置select的选中值

 *

 * formSelects.value(ID, ARR);

 *

 * @param ID    xm-select的值

 * @param ARR   value数组

 */

var formSelects = layui.formSelects;

formSelects.value('select1', [2, 4]);       // 选中value为2和4的option → 上海,深圳

/**

 * 3.追加或删除select的选中值

 *

 * formSelects.value(ID, ARR, isAppend);

 *

 * @param ID    xm-select的值

 * @param ARR   value数组

 */

var formSelects = layui.formSelects;

formSelects.value('select1', [2, 4], true); // 追加value为2和4的option, 如果该值已选中则跳过, 该值未选中则选中

formSelects.value('select1', [2, 4], false);// 删除value为2和4的option, 如果该值没有选中则跳过, 该值被选中则取消选中

/**

 * 1.监听select的选中与取消

 *

 * formSelects.on(ID, Function);

 *

 * @param ID        xm-select的值

 * @param Function  自定义处理方法

 * @param isEnd     是否获取实时数据, true/false

 */

var formSelects = layui.formSelects;

formSelects.on('select1', function(id, vals, val, isAdd, isDisabled){

    //id:           点击select的id

    //vals:         当前select已选中的值

    //val:          当前select点击的值

    //isAdd:        当前操作选中or取消

    //isDisabled:   当前选项是否是disabled

    //如果return false, 那么将取消本次操作

    return false;  

});

//以下两种方式则配置所有的多选select

formSelects.on(function(id, vals, val, isAdd, isDisabled){

    ...

});

formSelects.on(null, function(id, vals, val, isAdd, isDisabled){

    ...

});

//4.0.0.0813版本之前, 受到了颇多的小伙伴吐槽, 此版本加上了获取实时数据的方法

formSelects.on('select1', function(id, vals, val, isAdd, isDisabled){

    //id:           点击select的id

    //vals:         当前select已选中的值

    //val:          当前select点击的值

    //isAdd:        当前操作选中or取消

    //isDisabled:   当前选项是否是disabled

}, true);

/**

 * 1.多选select超出最大值的提示, 默认闪烁红色边框

 *

 * formSelects.maxTips(ID, Function);

 *

 * @param ID        xm-select的值

 * @param Function  自定义处理方法

 */

var formSelects = layui.formSelects;

formSelects.maxTips('select1', function(id, vals, val, max){

    //id:   点击select的id

    //vals: 当前select已选中的值

    //val:  当前select点击的值

    //max:  当天多选最大值

    alert("选超了...");

});

//以下两种方式则配置所有的多选select

formSelects.maxTips(function(id, vals, val, max){

    ...

});

formSelects.maxTips(null, function(id, vals, val, max){

    ...

});

/**

 * 1.自定义本地搜索过滤方式, 默认匹配文本是否包含

 *

 * formSelects.filter(ID, Function);

 *

 * @param ID        xm-select的值

 * @param Function  自定义处理方法

 */

var formSelects = layui.formSelects;

formSelects.filter('select1', function(id, inputVal, val, isDisabled){

    //id:           点击select的id

    //inputVal:     当前input搜索框中的数值

    //val:          格式: {"name":"上海","val":"2"}

    //isDisabled:   当前options是否被禁用

    //return true时该选项被过滤, 隐藏不显示

    return true;

});

//以下两种方式则配置所有的多选select

formSelects.filter(function(id, inputVal, val, isDisabled){

    ...

});

formSelects.filter(null, function(id, inputVal, val, isDisabled){

    ...

});

/**

 * 1.配置远程搜索, 请求头, 请求参数, 请求类型等

 *

 * formSelects.config(ID, Options, isJson);

 *

 * @param ID        xm-select的值

 * @param Options   配置项

 * @param isJson    是否传输json数据, true将添加请求头 Content-Type: application/json; charset=UTF-8

 */

var formSelects = layui.formSelects;

formSelects.config('select1', {

    type: 'get',                //请求方式: post, get, put, delete...

    header: {},                 //自定义请求头

    data: {},                   //自定义除搜索内容外的其他数据

    searchUrl: '',              //搜索地址, 默认使用xm-select-search的值, 此参数优先级高

    searchName: 'keyword',      //自定义搜索内容的key值

    searchVal: '',              //自定义搜索内容, 搜素一次后失效, 优先级高于搜索框中的值

    keyName: 'name',            //自定义返回数据中name的key, 默认 name

    keyVal: 'value',            //自定义返回数据中value的key, 默认 value

    keySel: 'selected',         //自定义返回数据中selected的key, 默认 selected

    keyDis: 'disabled',         //自定义返回数据中disabled的key, 默认 disabled

    keyChildren: 'children',    //联动多选自定义children

    delay: 500,                 //搜索延迟时间, 默认停止输入500ms后开始搜索

    direction: 'auto',          //多选下拉方向, auto|up|down

    response: {

        statusCode: 0,          //成功状态码

        statusName: 'code',     //code key

        msgName: 'msg',         //msg key

        dataName: 'data'        //data key

    },

    success: function(id, url, searchVal, result){      //使用远程方式的success回调

        console.log(id);        //组件ID xm-select

        console.log(url);       //URL

        console.log(searchVal); //搜索的value

        console.log(result);    //返回的结果

    },

    error: function(id, url, searchVal, err){           //使用远程方式的error回调

        //同上

        console.log(err);   //err对象

    },

    beforeSuccess: function(id, url, searchVal, result){        //success之前的回调, 干嘛呢? 处理数据的, 如果后台不想修改数据, 你也不想修改源码, 那就用这种方式处理下数据结构吧

        console.log(id);        //组件ID xm-select

        console.log(url);       //URL

        console.log(searchVal); //搜索的value

        console.log(result);    //返回的结果

        return result;  //必须return一个结果, 这个结果要符合对应的数据结构

    },

    beforeSearch: function(id, url, searchVal){         //搜索前调用此方法, return true将触发搜索, 否则不触发

        if(!searchVal){//如果搜索内容为空,就不触发搜索

            return false;

        }

        return true;

    },

    clearInput: false,          //当有搜索内容时, 点击选项是否清空搜索内容, 默认不清空

}, true);

//以下两种方式则配置所有的多选select

formSelects.config('select1', {

    ...

}, false);

formSelects.config(null, {

    ...

}, false);

/**

 * 1.重新渲染, 如果已经是多选则重置为初始值, 如果是初始select则渲染为多选

 * 2.支持渲染时候改变多个参数

 *

 * formSelects.render(ID);

 *

 * @param ID        xm-select的值

 */

var formSelects = layui.formSelects;

formSelects.render('select1', {

    init: ["1", "2"],               //默认值

    skin: "danger",                 //多选皮肤

    height: "auto",                 //是否固定高度, 38px | auto

    radio: false,                   //是否设置为单选模式

    direction: "auto",

    create: function(id, name){

        console.log(id);    //多选id

        console.log(name);  //创建的标签名称

        return Date.now();  //返回该标签对应的val

    },         

    filter: fun...,         //同formSelects.filter          

    max: 3,                 //多选最多选择量          

    maxTips: fun...,        //同formSelects.maxTips

    on: fun...,             //同formSelects.on

    searchType: "title",    //搜索框的位置           

    template: function(name, value, selected, disabled){

        console.log(name);      //选项名

        console.log(value);     //选项值

        console.log(selected);  //是否被选中

        console.log(disabled);  //是否被禁用

        //例如: 反转字符串

        //return name.split('').reverse().join('');

        return name;        //返回一个html结构, 用于显示选项

    },

    showCount: 0,           //多选的label数量, 0,负值,非数字则显示全部

});

//以下方式则重新渲染所有的已存在多选

formSelects.render();

/**

 * 1.禁用多选

 *

 * formSelects.disabled(ID);

 *

 * @param ID        xm-select的值

 */

var formSelects = layui.formSelects;

formSelects.disabled('select1');

//以下方式则禁用所有的已存在多选

formSelects.disabled();

/**

 * 1.启用多选, 启用被禁用的多选

 *

 * formSelects.undisabled(ID);

 *

 * @param ID        xm-select的值

 */

var formSelects = layui.formSelects;

formSelects.undisabled('select1');

//以下方式则启用所有的已存在多选

formSelects.undisabled();

/**

 * 1.多选数据赋值

 *

 * formSelects.data(ID, type, config);

 *

 * @param ID            xm-select的值

 * @param type          'local' | 'server', 本地数据或者远程数据

 * @param config        配置项

 *          arr             本地数据数组

 *          url             远程数据链接

 *          keyword         远程数据搜索内容, 其他附加数据可以使用 formSelects.config设置

 *          linkage         是否为联动多选

 *          linkageWidth    联动多选没级宽度

 */

//以下代码可以在console中运行测试, 结果查看基础示例第一个

var formSelects = layui.formSelects;

//local模式

formSelects.data('select1', 'local', {

    arr: [

        {"name": "分组-1", "type": "optgroup"},

        {"name": "北京", "value": 1},

        {"name": "上海", "value": 2},

        {"name": "分组-2", "type": "optgroup"},

        {"name": "广州", "value": 3},

        {"name": "深圳", "value": 4},

        {"name": "天津", "value": 5}

    ]

});

//server模式

formSelects.data('select1', 'server', {

    url: 'https://www.fastmock.site/mock/29487363107ab7d242c46305cadf4c52/formSelects/layui/data',

    keyword: '水果'

});

//server返回数据与远程搜索数据结构一致

{

    "code":0,

    "msg":"success",

    "data":[

        {"name":"北京","value":1,"selected":"","disabled":""},

        {"name":"上海","value":2,"selected":"","disabled":""},

        {"name":"广州","value":3,"selected":"selected","disabled":""},

        {"name":"深圳","value":4,"selected":"","disabled":"disabled"},

        {"name":"天津","value":5,"selected":"","disabled":""}

    ]

}

//当然你也可以偷懒, 返回如下结构

[

    {"name":"北京","value":1,"selected":"","disabled":""},

    {"name":"上海","value":2,"selected":"","disabled":""},

    {"name":"广州","value":3,"selected":"selected","disabled":""},

    {"name":"深圳","value":4,"selected":"","disabled":"disabled"},

    {"name":"天津","value":5,"selected":"","disabled":""}

]

/*************** 华丽的分割线 ***************/

//来一个树状结构的数据

formSelects.data('select15', 'local', {

    arr: [

        {name: '北京', value: 1, xslkdf: '123', children: [

            {name: '朝阳', value: 11},

            {name: '海淀', value: 12}

        ]},

        {name: '深圳', value: 2, children: [{name: '龙岗', value: 21}]},

    ]

});

/*************** 华丽的分割线 ***************/

//联动多选数据格式

//local, 注意 value值请保证唯一

formSelects.data('select15', 'local', {

    arr: [

        {

            "name": "北京",

            "value": 1,

            "children": [

                {"name": "北京市1", "value": 12, "children": [

                    {"name": "朝阳区1", "value": 13, "children": []},

                    {"name": "朝阳区2", "value": 14, "children": []},

                    {"name": "朝阳区3", "value": 15, "children": []},

                    {"name": "朝阳区4", "value": 16, "children": []},

                ]},

                {"name": "北京市2", "value": 17, "children": []},

                {"name": "北京市3", "value": 18, "children": []},

                {"name": "北京市4", "value": 19, "children": []},

            ]

        },

        {

            "name": "天津",

            "value": 2,

            "children": [

                {"name": "天津市1", "value": 51, "children": []},

            ]

        },

    ],

    linkage: true   //开启联动模式

});

//server

formSelects.data('select15', 'server', {

    url: 'http://yapi.demo.qunar.com/mock/9813/layui/citys',

    linkage: true,

    linkageWidth: 130   //代表每一级别的宽度, 默认是100

});

//server返回数据, 同上 value不能重复

{

    "code":0,

    "msg":"success",

    "data":[

        {

            "name": "北京",

            "value": 1,

            "children": [

                {"name": "北京市1", "value": 12, "children": [

                    {"name": "朝阳区1", "value": 13, "children": []},

                    {"name": "朝阳区2", "value": 14, "children": []},

                    {"name": "朝阳区3", "value": 15, "children": []},

                    {"name": "朝阳区4", "value": 16, "children": []},

                ]},

                {"name": "北京市2", "value": 17, "children": []},

                {"name": "北京市3", "value": 18, "children": []},

                {"name": "北京市4", "value": 19, "children": []},

            ]

        },

        {

            "name": "天津",

            "value": 2,

            "children": [

                {"name": "天津市1", "value": 51, "children": []},

            ]

        },

    ]

}

/**

 * 1.快捷操作

 *

 * formSelects.btns(ID, BTNS, config);

 *

 * @param ID        xm-select的值

 * @param BTNS      定义操作列表, 内置三种操作, select:全选, remove:清空, skin:换肤, 当然你可以自定义

 * @param config    配置操作列表, config.show='name' 只显示名称, config.show='icon' 只显示图标, config.space='30px' 两个操作之间的间隔

 */

var formSelects = layui.formSelects;

//默认设置了 全选, 清空, 反选

//如下设置内置操作

formSelects.btns('select1', ['select', 'remove', 'reverse']);

//如下设置自定义

formSelects.btns('select1', ['select', 'remove', 'skin', {

    icon: 'layui-icon layui-icon-ok',   //自定义图标, 可以使用layui内置图标

    name: '提示名称',

    click: function(id){

        //点击后的操作

        alert('点击了自定义快捷操作')

    }

}]);

//配置只显示名称,紧凑型, 适合宽度较窄的情况

formSelects.btns('select1', ['select', 'remove'], {show: 'name', space: '10px'});

//如下写法定义所有的多选

formSelects.btns(['select', 'remove', 'skin']);

// !!友情提示: name不能重复

/**

 * 1.触发搜索

 *

 * formSelects.search(ID, val);

 *

 * @param ID        xm-select的值

 * @param BTNS      搜索内容

 */

var formSelects = layui.formSelects;

//使用js主动触发搜索

formSelects.search('select1', '关键内容');

/**

 * 1.打开下拉框的回调事件

 *

 * formSelects.opened(ID);

 *

 * @param ID        xm-select的值

 */

var formSelects = layui.formSelects;

//监听下拉框的打开

formSelects.opened('select1', function(id){

    console.log('打开了');

});

//如下定义所有

formSelects.opened(null, function(id){

    console.log('打开了');

});

formSelects.opened(function(id){

    console.log('打开了');

});

/**

 * 1.关闭下拉框的回调事件

 *

 * formSelects.closed(ID);

 *

 * @param ID        xm-select的值

 */

var formSelects = layui.formSelects;

//监听下拉框的关闭

formSelects.closed('select1', function(id){

    console.log('合上了');

});

//如下定义所有

formSelects.closed(null, function(id){

    console.log('合上了');

});

formSelects.closed(function(id){

    console.log('合上了');

});