下拉列表快速选择回显效果

浏览：1325次- 评论：2次- 发布时间：2021-05-31

Html

Css

/* CSS初始化 */
body,ol,ul,h1,h2,h3,h4,h5,h6,p,th,td,dl,dd,form,fieldset,legend,input,textarea,select {
	margin:0;
	padding:0;
}
body {
	font:14px,"Monospaced Number","Chinese Quote",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif,sans-serif,"宋体","Arial Narrow",HELVETICA;
	background:#fff;
	-webkit-text-size-adjust:100%;
}
a {
	color:#172c45;
	text-decoration:none;
}
a:hover {
	color:#cd0200;
	text-decoration:underline;
}
em {
	font-style:normal;
}
li {
	list-style:none;
}
img {
	border:0;
	vertical-align:middle;
}
table {
	border-collapse:collapse;
	border-spacing:0;
}
p {
	word-wrap:break-word;
}
:focus {
	outline:none;
}
/* index.css */
html,body {
	height:100%;
}
body {
	width:1000px;
	color:#000;
	font-size:14px;
}
.to__header .to__addUser {
	margin:0 auto;
	width:90%;
	font-size:20px;
}
.to__header .to__flow {
	margin:0 auto;
	padding:15px 0;
	width:90%;
	display:block;
}
.to__header .to__flow .to__flow__item {
	position:relative;
	width:30%;
	color:#999;
	display:inline-block;
}
.to__header .to__flow .to__flow__item .to__round {
	margin-right:12px;
	width:20px;
	height:20px;
	line-height:20px;
	text-align:center;
	border:1px solid #999;
	border-radius:50%;
	display:inline-block;
}
.to__header .to__flow .to__flow__item .to__active {
	color:#fff;
	background-color:#175ad8;
	border:1px solid #175ad8;
}
.to__header .to__flow .to__flow__item .to__flow__name {
	display:inline-block;
	cursor:pointer;
}
.to__header .to__flow .to__flow__item::after {
	margin:auto 0;
	content:">";
	position:absolute;
	right:33%;
	top:0;
	bottom:0;
	height:20px;
	line-height:20px;
	font-size:26px;
}
.to__header .to__flow .to__flow__item:last-child::after {
	content:"";
}
.to__block {
	padding-left:10px;
	text-align:center;
}
.to__block .to__left,.to__block .to__right {
	width:45%;
	display:inline-block;
	vertical-align:text-top;
}
.to__block .to__left .to__item,.to__block .to__right .to__item {
	margin-left:-100px;
	padding-left:140px;
	height:40px;
	line-height:40px;
	border-bottom:1px solid #eee;
}
.to__block .to__left .to__title,.to__block .to__right .to__title {
	line-height:30px;
	text-align:left;
}
.to__block .to__left .to__title .to__remark,.to__block .to__right .to__title .to__remark {
	color:#999;
	display:inline-block;
}
.to__block .to__left .to__content,.to__block .to__right .to__content {
	width:100%;
	height:300px;
	text-align:left;
	border:1px solid #ccc;
	box-sizing:border-box;
	overflow-y:auto;
}
.to__block .to__left .to__content .to__search,.to__block .to__right .to__content .to__search {
	position:relative;
	height:30px;
	line-height:30px;
	border-bottom:1px solid #ccc;
}
.to__block .to__left .to__content .to__search input,.to__block .to__right .to__content .to__search input {
	padding-left:20px;
	padding-right:100px;
	width:100%;
	border:none;
	box-sizing:border-box;
}
.to__block .to__left .to__content .to__search .to__icon__search,.to__block .to__right .to__content .to__search .to__icon__search {
	position:absolute;
	top:0;
	right:0;
	width:50px;
	height:30px;
	border-left:1px solid #ccc;
}
.to__block .to__left .to__content .to__search .to__icon__search svg,.to__block .to__right .to__content .to__search .to__icon__search svg {
	margin:auto;
	position:absolute;
	top:0;
	bottom:0;
	left:0;
	right:0;
}
.to__block .to__left {
	position:relative;
	margin-right:30px;
}
.to__block .to__left > div .to__subItem {
	padding-left:20px;
	display:none;
}
.to__block .to__left > div .to__show {
	display:block;
}
.to__block .to__left .to__arrow {
	margin:auto 0;
	position:absolute;
	right:0;
	top:0;
	bottom:0;
	color:#999;
	height:30px;
	line-height:30px;
	font-size:20px;
	transform:translateX(120%);
}
.to__block .to__left .to__arrow span:last-child {
	margin-left:-16px;
}
.to__block .to__left .to__item {
	position:relative;
}
.to__block .to__left .to__item .to__downList {
	position:relative;
}
.to__block .to__left .to__item .to__downList i {
	position:absolute;
	top:0;
	bottom:0;
	right:6px;
	width:12px;
	height:12px;
	display:inline-block;
	margin:auto 0;
	cursor:pointer;
	transform:rotate(-90deg);
}
.to__block .to__left .to__item .to__downList i svg {
	position:absolute;
	z-index:2;
}
.to__block .to__left .to__item .to__downList .to__roate {
	transform:rotate(0);
}
.to__block .to__left .to__item input[type="checkbox"] {
	position:relative;
	margin-right:6px;
	-webkit-appearance:none;
	vertical-align:middle;
	margin-top:0;
	background:#fff;
	border:#ccc solid 1px;
	min-height:12px;
	min-width:12px;
}
.to__block .to__left .to__item input[type="checkbox"]:checked {
	background:#3190e8;
}
.to__block .to__left .to__item input[type=checkbox]:checked::after {
	content:'';
	top:2px;
	left:1px;
	position:absolute;
	background:transparent;
	border:#fff solid 2px;
	border-top:none;
	border-right:none;
	height:2px;
	width:6px;
	-moz-transform:rotate(-45deg);
	-ms-transform:rotate(-45deg);
	-webkit-transform:rotate(-45deg);
	transform:rotate(-45deg);
}
.to__block .to__left .to__item .to__name {
	display:inline-block;
	vertical-align:middle;
	cursor:pointer;
}
.to__block .to__right {
	position:relative;
}
.to__block .to__right .to__item {
	position:relative;
}
.to__block .to__right .to__item .to__close {
	margin:auto 0;
	position:absolute;
	right:12px;
	top:0;
	bottom:0;
	cursor:pointer;
}
.to__block .to__right .to__item .to__close i {
	font-size:20px;
	transform:rotate(45deg);
	font-style:normal;
	display:inline-block;
}
.to__footer {
	margin-top:15px;
	text-align:center;
}
.to__footer .to__btn__group {
	display:inline-block;
}
.to__footer .to__btn__group .to__btn {
	margin:0 25px;
	padding:8px 0;
	width:80px;
	border:1px solid #999;
	display:inline-block;
}
.to__footer .to__btn__group .to__btn__primary {
	color:#fff;
	background-color:#175ad8;
}

var checkedList = [] // 选中列表

// 节点单击事件
function domClick(e) {
    // 选中子元素所有input框
    var subItem = e.parentNode.nextElementSibling
    var inputList = subItem.querySelectorAll(".to__item")
    for (var i = 0; i < inputList.length; i++) {
        var item = inputList[i]
        item.querySelector("input").checked = !e.querySelector("input").checked
        var subName = item.querySelector(".to__name").innerHTML
    }

// 选中当前input框
    e.querySelector("input").checked = !e.querySelector("input").checked
    select(e)
}

// 冒泡事件
function checkboxClick(e) {
    e.checked = !e.checked
}

// checkedbox选中事件
function select() {
    // 筛选在右侧区域需要遍历的内容
    checkedList = []
    var cList = document.getElementsByName("cName")
    for (var i = 0; i < cList.length; i++) {
        var classArr = (cList[i].parentNode.parentNode.className).split(' ')
        var className = classArr[classArr.length - 1]
        var level = parseInt(className.replace(/\w+-/g, '')) //

// 设置显示的级别
        var levelArr = document.querySelectorAll("[class^='to__item level-']")
        var max = 1

for (var a = 0; a < levelArr.length; a++) {
            var item = levelArr[a];
            var arr = item.className.split('-')
            if (parseInt(arr[1]) > max) {
                max = parseInt(arr[1])
            }
        }
        if (level == max && cList[i].checked == true) {
            checkedList.push(cList[i].value)
        }
    }

// 右侧区域添加选中内容
    var dom = document.getElementById("rightCont")
    dom.innerHTML = ""
    for (var i = 0; i < checkedList.length; i++) {
        var item = checkedList[i];
        var div = document.createElement("div")
        div.className = "to__item"
        div.innerHTML = '<span>' + item + '</span><span class="to__close" onclick="cancel(this)"><i>+</i></span>'
        dom.appendChild(div)
    }
}

// 取消选中事件
function cancel(dom) {
    var cList = document.getElementsByName("cName")
    for (var i = 0; i < cList.length; i++) {
        var item = cList[i];
        if (item.value == dom.previousElementSibling.innerHTML) {
            item.checked = false
            select();
            break;
        }
    }
}

// 下拉框点击事件
function Click(dom) {
    // 切换样式状态
    if (dom.className.indexOf("to__roate") > -1) {
        dom.className = ""
    } else {
        dom.className = "to__roate"
    }

// 显示隐藏内容
    var domShow = dom.parentNode.parentNode.nextElementSibling
    if (domShow.className.indexOf("to__show") > -1) {
        domShow.className = "to__subItem"
    } else {
        domShow.className = "to__subItem to__show"
    }
}

window.onload = function() {
    // 模拟数据
    var data = [{
        name: "xxx公司",
        child: [{
                name: "综合部",
                child: [{
                        name: "小明",
                        child: []
                    },
                    {
                        name: "小红",
                        child: []
                    }
                ]
            },
            {
                name: "技术部",
                child: [{
                        name: "小白",
                        child: []
                    },
                    {
                        name: "小黑",
                        child: []
                    }
                ]
            },
            {
                name: "UI部",
                child: []
            }
        ]
    }]

var endHtml = 0
    var html = ""
    var level = 1

// 遍历树形结构
    function getData(data, dom) {
        if (Object.prototype.toString.call(data) === '[object Array]') {
            for (var i = 0; i < data.length; i++) {

// 添加标题
                var item = document.createElement("div")
                var arrow = '<span class="to__downList" ><i onclick="Click(this)"><svg t="1550632829702" class="icon" style="" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="1783" xmlns:xlink="http://www.w3.org/1999/xlink" width="100%" height="100%"><defs><style type="text/css"></style></defs><path d="M959.52557 254.29773 511.674589 702.334953 63.824631 254.29773Z" p-id="1784"></path></svg></i></span>'

// 设置显示级别
                if (level == 3) {
                    arrow = ""
                }
                item.innerHTML = '<div class="to__item level-' + level + '">' + arrow + '<span onclick="domClick(this)"><input type="checkbox" name="cName" value="' + data[i].name + '" onclick="checkboxClick(this)" /><div class="to__name">' + data[i].name + '</div></span></div>'
                dom.appendChild(item)

// 添加子元素
                var subItem = document.createElement("div")
                subItem.className = "to__subItem"
                item.appendChild(subItem)

if (data[i].child.length > 0) {
                    level++
                    getData(data[i].child, subItem)
                } else {
                    if (i == data.length - 1) {
                        level--
                    }
                }
            }
        }
    }

// 赋值
    var baseDom = document.createElement("div")
    getData(data, baseDom)
    document.getElementById("leftCont").innerHTML = baseDom.innerHTML

}

↑上面代码改变，会自动显示代码结果

jQuery调用版本：1.11.3