【js】【demo】多级联动选择标签

//js-多级联动选择标签demo,页面：<div name="tagParentId0"></div>
//设置标签html，标签格式[{TagId,Title,Content,ParentTagId,ChildList}]
var TagsSet = function (data) {
    var rootSpan = $("[name='tagParentId0']");
    for (var i = 0; i < data.length; i++) {
        var x = data[i];
        var html = '<div class="form-group"><label class="control-label col-md-2 col-sm-2 col-xs-2">'+x.Title+'：</label><div>';
        html += TagGetHtml(x);
        html += "</div></div>";
        rootSpan.append(html);
    }
    //绑定下拉选择框改变事件
    $("[name='tagSelect']").bind("change", ShowTags);
}
//获取标签html内容
var TagGetHtml = function (e) {
    if (e && e.ChildList && e.ChildList.length > 0) {
        var html = '<span name="tag' + e.TagId + '" ' + (e.ParentTagId == 0 ? '' : 'style="display: none;"') + '>';
        html += '<select name="tagSelect" class="form-control addtag" onchange="ShowTags">';
        for (var i = 0; i < e.ChildList.length; i++) {
            var x = e.ChildList[i];
            //json中是双引号，所以value等号后为单引号才行
            html += "<option value='" + JSON.stringify(x) + "'>" + x.Title + "</option>";
        }
        html += "</select>";
        for (var i = 0; i < e.ChildList.length; i++) {
            var x = e.ChildList[i];
            html += TagGetHtml(x);
        }
        html += "</span>";
        return html;
    } else {
        return "";
    }
}
//选择框改变事件，显示子级或执行选中业务
var ShowTags = function () {
    console.log($(this));
    var e = $(this).children("option:selected").val();
    //值是对象字符串
    if (e.indexOf("{") == 0) {
        var v = JSON.parse(e);
        if (v.ChildList && v.ChildList.length > 0) {
            //显示子级
            $(this).parent().children("span").hide();
            $("[name='tag" + v.TagId + "']").show();
        } else {
            //执行选中业务
            AddCopy(v.Content);
        }
    } else {
        //执行选中业务
        AddCopy(v);
    }
}
//选择框选中后执行业务
var AddCopy = function (v) {
    if (v) {
        console.log(v);
    }
}
//test
var test=function(){
    var data=[{"ChildList":[{"ChildList":[{"ChildList":[{"ChildList":null,"TagId":19,"Title":"c1c1c1c1","Content":"c1c1c1c1","Type":0,"Sort":1,"ParentTagId":13},{"ChildList":null,"TagId":20,"Title":"c1c1c1c2","Content":"c1c1c1c2","Type":0,"Sort":2,"ParentTagId":13}],"TagId":13,"Title":"c1c1c1","Content":"c1c1c1","Type":0,"Sort":1,"ParentTagId":2},{"ChildList":[{"ChildList":null,"TagId":21,"Title":"c1c1c2c1","Content":"c1c1c2c1","Type":0,"Sort":1,"ParentTagId":14}],"TagId":14,"Title":"c1c1c2","Content":"c1c1c2","Type":0,"Sort":2,"ParentTagId":2}],"TagId":2,"Title":"测试标签1子级1","Content":"c1c1","Type":0,"Sort":1,"ParentTagId":1},{"ChildList":[{"ChildList":[{"ChildList":null,"TagId":22,"Title":"c1c2c1c1","Content":"c1c2c1c1","Type":0,"Sort":1,"ParentTagId":15}],"TagId":15,"Title":"c1c2c1","Content":"c1c2c1","Type":0,"Sort":1,"ParentTagId":3},{"ChildList":[{"ChildList":null,"TagId":17,"Title":"c1c2c2c1","Content":"c1c2c2c1","Type":0,"Sort":1,"ParentTagId":16},{"ChildList":null,"TagId":18,"Title":"c1c2c2c2","Content":"c1c2c2c2","Type":0,"Sort":2,"ParentTagId":16}],"TagId":16,"Title":"c1c2c2","Content":"c1c2c2","Type":0,"Sort":2,"ParentTagId":3}],"TagId":3,"Title":"测试标签1的2","Content":"c1c2","Type":0,"Sort":2,"ParentTagId":1},{"ChildList":null,"TagId":4,"Title":"c1c3","Content":"c1c3d","Type":0,"Sort":3,"ParentTagId":1},{"ChildList":null,"TagId":5,"Title":"c1c4","Content":"c1c4d","Type":0,"Sort":4,"ParentTagId":1},{"ChildList":null,"TagId":12,"Title":"c1c5","Content":"c1c5","Type":0,"Sort":5,"ParentTagId":1}],"TagId":1,"Title":"检测标签1","Content":"c1c1","Type":0,"Sort":1,"ParentTagId":0},{"ChildList":[{"ChildList":null,"TagId":11,"Title":"123","Content":"","Type":0,"Sort":1,"ParentTagId":8},{"ChildList":null,"TagId":9,"Title":"ALEX测试","Content":"测试测试测试测试测试测试车测试测试菜市场","Type":0,"Sort":2,"ParentTagId":8}],"TagId":8,"Title":"标签做什么用","Content":"","Type":0,"Sort":1,"ParentTagId":0},{"ChildList":null,"TagId":10,"Title":"信息新增","Content":"测试测试测试测试测试车","Type":0,"Sort":1,"ParentTagId":0},{"ChildList":[{"ChildList":null,"TagId":7,"Title":"c2c2","Content":"c2c2","Type":0,"Sort":1,"ParentTagId":6}],"TagId":6,"Title":"c2c0","Content":"c2c0d","Type":0,"Sort":2,"ParentTagId":0}];
    TagsSet(data);
}

标签：ParentTagId,Title,demo,TagId,多级,ChildList,Content,js,Type
来源： https://www.cnblogs.com/lanofsky/p/16689813.html