layui在open弹出层回显，解决动态select数据回显问题

//监听数据表格工具条

        table.on('tool(contentList)', function(obj){ //注：tool是工具条事件名，test是table原始容器的属性 lay-filter="对应的值"

            var data = obj.data //获得当前行数据

                ,layEvent = obj.event; //获得 lay-event 对应的值

            if(layEvent === 'detail'){

                x_content_detail('小说详情','content-detail.html',data,600,500);

            } else if(layEvent === 'del'){

                layer.confirm('真的删除行么', function(index){

                    x_content_delete('/novel/delete',data.novelId);

                    layer.close(index);

                });

            } else if(layEvent === 'edit'){

                x_content_edit('编辑小说','content-edit.html',data,600,500);

            }

        });

 

 

layui弹出层回显代码：

title：弹出层标题

url：弹出层html页面

data：回显数据

w：宽度

h：高度

 

function x_content_edit(title, url, data, w, h) {

    if (title == null || title == '') {

        title = false;

    }

    ;

    if (url == null || url == '') {

        url = "404.html";

    }

    ;

    if (w == null || w == '') {

        w = 800;

    }

    ;

    if (h == null || h == '') {

        h = ($(window).height() - 50);

    }

    ;

    layer.open({

        type: 2,    //iframe层

        area: [w + 'px', h + 'px'],

        fix: false, //不固定

        btn: ['确认', '取消'],//弹出层按钮

        maxmin: true,

        shadeClose: true,

        shade: 0.4,

        title: title,

        offset: '50px',

        content: url,

        success: function (layero, index) {//弹出层打开后的回调函数

            var body = layer.getChildFrame('body', index);//获取弹出层的dom元素

            result = JSON.stringify(data);

            result = $.parseJSON(result);

            $.each(result, function (item) {

                body.find('#A_' + item).val(result[item]);//给弹出层页面赋值，id为对应弹出层表单id

                if (item == 'contentId') {

                    body.find('#B_contentId').val(result[item]);//这里是为动态select赋值，在弹出层创建隐藏元素

                } else if (item == 'type') {

                    body.find('#B_type').val(result[item]);

                } else if (item == 'recommendFlag') {

                    body.find('#B_recommendFlag').val(result[item]);

                }

            });

        },

        yes: function (index, layero) {//点击“确认”按钮后触发的事件

            var data = {};

            var body = layer.getChildFrame('body', index);

            var form = body.find("#novelUpdate").serializeArray();//获取指定id的表单

            $.each(form, function () {

                data[this.name] = this.value;

            });

            data = JSON.stringify(data);

            var content = {'novelJson': data};

            $.post('/novel/update', content, function (rec) {//得到数据提交到后端进行更新

                if (rec.code == 0) {

                    layer.alert(rec.msg, {icon: 6}, function (index) {

                        layer.close(index);

                    });

                    layui.use('table', function () {

                        var table = layui.table;

                        table.reload('contentList', {

                            url: '/novel/novelList' //数据接口，更新成功后刷新数据表格

                        });

                    });

                } else {

                    layer.alert(rec.msg, {icon: 5}, function (index) {

                        layer.close(index);

                    });

                }

                layer.close(index);

            }, 'json');

            return false;

 

        }

    });

}

 

 

从后台读取数据渲染到弹出层的select中，并设置默认选中值：

 

function showNovelType() {

    layui.use('form',function () {

        $ = layui.jquery;

        var form = layui.form;

        $.ajax({

            type:'get',

            url:'/common/getNovelType', //后端接口

            dataType:'json',

            success:function (rec) {

                if(rec['code']==0){

                    var novelType=document.getElementById('A_type');

                    var B_type=document.getElementById('B_type');

                    $.each(rec.data,function(i,item){

                        var option=document.createElement("option"); //创建option标签

                        option.setAttribute("value",item['typeId']);//设置value值

                        if(!B_type) {

                            //要同时判断 null 和 undefined

                        }else {

                            if(item['typeId']==B_type.value) {

                                option.setAttribute("selected",'true');//设置选中状态

                            }

                        }

                        option.innerText=item['typeName'];//显示text内容

                        novelType.appendChild(option);

                        form.render('select');//重新渲染

                    })

                }

            }

        })

    })

}

 

function showRecommendPotion() {

    layui.use('form',function () {

        $ = layui.jquery;

        var form = layui.form;

        $.ajax({

            type:'get',

            url:'/common/getRecommendPosition',

            dataType:'json',

            success:function (rec) {

                if(rec['code']==0){

                    var recommendPotion=document.getElementById('A_recommendFlag');

                    var B_recommendFlag=document.getElementById('B_recommendFlag');

                    $.each(rec.data,function(i,item){

                        var option=document.createElement("option");

                        option.setAttribute("value",item['recommendId']);

                        if(!B_recommendFlag) {

                            //要同时判断 null 和 undefined

                        }else{

                            if(item['recommendId']==B_recommendFlag.value) {

                                option.setAttribute("selected",'true');

                            }

                        }

                        option.innerText=item['recommendName'];

                        recommendPotion.appendChild(option);

                        form.render('select');

                    })

                }

            }

        })

    })

}

 

function showContentProvider() {

    layui.use('form',function () {

        $ = layui.jquery;

        var form = layui.form;

        $.ajax({

            type:'get',

            url:'/contentProvider/getAllProviders',

            dataType:'json',

            success:function (rec) {

                if(rec['code']==0){

                    var A_contentId=document.getElementById('A_contentId');

                    var B_contentId=document.getElementById('B_contentId');

                    $.each(rec.data,function(i,item){

                        var option=document.createElement("option");

                        option.setAttribute("value",item['contentId']);

                        if(!B_contentId) {

                            //要同时判断 null 和 undefined

                        }else{

                            if(item['contentId']==B_contentId.value) {

                                option.setAttribute("selected",'true');

                            }

                        }

                        option.innerText=item['contentName'];

                        A_contentId.appendChild(option);

                        form.render('select');

                    })

                }

            }

        })

    })

}