HTML
<!DOCTYPE html>
<html lang="zh">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimal-ui">
<meta name="keywords" content="LightYear,LightYearAdmin,光年,后台模板,后台管理系统,光年HTML模板">
<meta name="description" content="Light Year Admin V4是一个基于Bootstrap v4.4.1的后台管理系统的HTML模板。">
<meta name="author" content="yinq">
<title>下拉树状菜单 - 光年(Light Year Admin V4)后台管理系统模板</title>
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-touch-fullscreen" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="default">
<link href="http://lyear.itshubao.com/iframe/css/bootstrap.min.css" rel="stylesheet">
<link href="http://example.itshubao.com/demo/css/materialdesignicons.min.css" rel="stylesheet">
<link href="http://lyear.itshubao.com/iframe/css/style.min.css" rel="stylesheet">
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-lg-12">
<div class="card">
<div class="card-header"><h4>下拉树状菜单 bootstrap-lyear-dropdowntree</h4></div>
<div class="card-body">
<p>下拉树状菜单插件实在太少，唯一找到的插件DropDownTree，也并不符合需求。所以这里自己弄了个下拉树状菜单的插件，支持单选和多选。</p>
<h5 class="m-b-10">示例一：</h5>
<div class="form-group">
<label>选择栏目</label>
<div class="lyear-dropdown-tree">
<input type="text" class="form-control" value="" placeholder="请选择你要发布的栏目" data-toggle="dropdown">
</div>
</div>
<div class="form-group">
<button class="btn btn-default example-1">获取选中值的文字</button>
<button class="btn btn-default example-2">获取选中值的ID</button>
</div>
<div class="form-group">
<pre id="consolebox"></pre>
</div>
<div class="form-group">
<p>初始化代码</p>
<pre>var test = $('.lyear-dropdown-tree').lyearDropdownTree({
data : data, // 树状结构数据
multiSelect : true, // 是否多选，默认true
jsonStr : ',', // 数据分割符，默认','，例如获取选中数据会返回：1,2,3
selectedData : [3017,3018], // 当前已选中的数据，默认[]
relationParent : true, // 是否关联父类(主要用于多选)，默认true，设置为false，则选中父类，子类不会选中
relationChildren : true, // 是否关联子类(主要用于多选)，默认true，设置为false，则子类全部选中，父类不会选中
checkHandler: function(el) { // 回调
console.log(el);
},
});</pre>
</div>
<table class="table table-bordered">
<tr>
<th width="10%">方法名</th>
<th>说明</th>
</tr>
<tr>
<td>setSelectedItem</td>
<td>设置选中项，如果是单选，则只设置最后一个为选中（可以在初始化时候指定选中项，也可以单独调用方法设定）</td>
</tr>
<tr>
<td>getSelectedText</td>
<td>获取选中项文字</td>
</tr>
<tr>
<td>getSelectedID</td>
<td>获取选中项ID</td>
</tr>
</table>
</div>
</div>
</div>
</div>
</div>
<script type="text/javascript" src="http://lyear.itshubao.com/iframe/js/jquery.min.js"></script>
<script type="text/javascript" src="http://lyear.itshubao.com/iframe/js/bootstrap.min.js"></script>
<script type="text/javascript" src="http://libs.itshubao.com/bootstrap.lyear.dropdowntree.min.js"></script>
</body>
</html>
CSS
.lyear-dropdown-tree {
position: relative;
}
.lyear-dropdown-tree .checkbox-box,
.lyear-dropdown-tree .radio-box {
font-size: 15px;
cursor: pointer;
}
.lyear-dropdown-tree .arrow {
margin-left: -15px;
}
.lyear-dropdown-tree .checkbox-box:before {
content: "\F131";
}
.lyear-dropdown-tree .checkbox-box.lyear-dropdown-tree-checked:before {
content: "\F135";
}
.lyear-dropdown-tree .checkbox-box.lyear-dropdown-tree-half-checked:before {
content: "\F6F1";
}
.lyear-dropdown-tree .radio-box:before {
content: "\F130";
}
.lyear-dropdown-tree .radio-box.lyear-dropdown-tree-checked:before {
content: "\F134";
}
.lyear-dropdown-tree .radio-box.lyear-dropdown-tree-half-checked:before {
content: "\F377";
}
.lyear-dropdown-tree .dropdown-menu {
min-width: 100%;
overflow-y: auto;
overflow-x: auto;
padding-bottom: 13px;
}
.lyear-dropdown-tree .dropdown-menu > li {
margin-left: 15px;
}
.lyear-dropdown-tree .dropdown-menu li ul {
list-style: none;
padding-left: 25px;
}
.lyear-dropdown-tree .dropdown-menu li ul a {
clear: both;
font-weight: 400;
line-height: 1.42857143;
color: #333;
white-space: nowrap;
padding: 3px 20px;
}
.lyear-dropdown-tree .dropdown-menu li a {
display: inline-block;
padding-left: 15px!important;
}
.lyear-dropdown-tree .dropdown-menu li a.lyear-dropdown-tree-a-checked {
color: #33cabb;
}
.lyear-dropdown-tree .dropdown-menu a:hover,
.lyear-dropdown-tree .dropdown-menu a:active,
.lyear-dropdown-tree .dropdown-menu a:focus {
background-color: transparent;
}
.lyear-dropdown-tree .form-control {
padding-right: 30px;
cursor: pointer;
}
.lyear-dropdown-tree i.lyear-cert {
font-size: 20px;
position: absolute;
top: 3px;
right: 5px;
}
JavaScript
var data = [
{
id: 1,
title:"北京市",
children: [
{id: 101, title:"东城区"},
{id: 102, title:"西城区"},
{id: 103, title:"朝阳区"}
]
},
{
id: 2,
title:"天津市",
children: [
{id: 201, title:"和平区"},
{id: 202, title:"河东区"},
{id: 203, title:"河西区"}
]
},
{
id: 3,
title:"河北省",
children: [
{
id: 301,
title:"石家庄",
children: [
{id:3011, title: '长安区'},
{id:3012, title: '桥西区'},
{id:3013, title: '新华区'},
{id:3014, title: '井陉矿区'},
{id:3015, title: '裕华区'},
{id:3016, title: '藁城区'},
{id:3017, title: '鹿泉区'},
{id:3018, title: '栾城区'},
]
},
{id: 302, title:"邯郸"},
{id: 303, title:"保定"}
]
}
];
var test = $('.lyear-dropdown-tree').lyearDropdownTree({
data : data,
multiSelect : false,
jsonStr : ',',
selectedData : [3017,3018],
relationParent : true,
relationChildren : true,
checkHandler: function(el) {
//console.log("checked ", el);
},
});
$('.example-1').click(function() {
if (test.getSelectedID().length == 0) {
consolebox.append("你没有做出选择\n");
} else {
consolebox.append(test.getSelectedID()+"\n");
}
})
$('.example-2').click(function() {
if (test.getSelectedText().length == 0) {
consolebox.append("你没有做出选择\n");
} else {
consolebox.append(test.getSelectedText()+"\n");
}
})