用layui實現下拉框select多選，取值

首先須要的js及css，能夠直接在layui官網上下載：https://www.layui.com/

相關引用：

 

<script src="~/layui-v2.4.5/layui/layui.js"></script>
<script src="~/layui-v2.4.5/layui/layui.all.js"></script>
<link href="~/layui-v2.4.5/layui/css/layui.css" rel="stylesheet" />
<script src="~/layui-v2.4.5/layui/lay/modules/layer.js"></script>

增長以下測試html代碼：

<div class="layui-form">
        <div class="layui-fluid">
            <div class="layui-form layui-col-md12">
                <div class="layui-form-item">
                    <div class="layui-col-md4">
                        <label class="layui-form-label">城市<span style="color:red">●</span></label>
                        <div class="layui-input-block">
                            <select name="select_base_cityname" id="select_base_cityname" lay-filter="select_base_cityname" xm-select="select_base_cityname" xm-select-type="1">
                                <option value=""></option>
                                <option value="1">北京</option>
                                <option value="2">上海</option>
                                <option value="3">天津</option>
                                <option value="4">重慶</option>
                            </select>
                        </div>
                    </div>
                </div>
                <div class="layui-row ">
                    <div class="test-table-reload-btn" style="margin-bottom: 10px;">
                        <button type="button" class="layui-btn layui-btn-danger" lay-submit lay-filter="btn_submit" id="btn_submit"><i class="layui-icon">&#xe681</i>獲取</button>

                       
                    </div>
                </div>
            </div>
        </div>
    </div>

配置select多選相關：

<link href="~/layui-v2.4.5/layui/formSelects-v4.css" rel="stylesheet" />
<script src="~/layui-v2.4.5/layui/formSelects-v4.js"></script>
<script type="text/javascript">
    //全局定義一次, 加載formSelects
    layui.config({
        base: '/' //此處路徑請自行處理, 可使用絕對路徑
    }).extend({
        formSelects: 'formSelects-v4'
    });
    //加載模塊
    layui.use(['jquery', 'formSelects'], function () {
        var formSelects = layui.formSelects;

    });
</script>

 

到這一步，已經能顯示多選效果了，如圖：

 

 

接下來就直接獲取選擇的值就好了：

 

<script type="text/javascript">
    layui.use(['form', 'layer', 'jquery', 'table', 'laydate', 'element', 'upload', 'flow'], function () {
        var $$ = layui.jquery;
        var form = layui.form,
            layer = parent.layer == undefined ? layui.layer : parent.layer,
            //layer = layui.layer,
            table = layui.table,
            laydate = layui.laydate,
            element = layui.element,
            upload = layui.upload,
            flow = layui.flow;
        form.render();

        form.on('submit(btn_submit)', function (obj) {
            layer.confirm('確認錄入無誤嗎？', {
                btn: ['確認', '再看看']
            }, function () {  
                var getName = JSON.stringify(layui.formSelects.value('select_base_cityname', 'name'));//取值name數組
                layer.msg("你選擇的值爲：" + getName, { offset: '150px', icon: 1, time: 5000 }, function () {                  
                });
            });
        });

    });

</script>

 更詳細的文檔，能夠參考：https://hnzzmsf.github.io/example/example_v4.html#select_value

 總結：layui仍是相對不錯的前端框架，在一些項目中，都會看到它的身影。