bootstrap-treeview 如何实现全选父节点下所有子节点及反选

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转（https://www.augsky.com/992.html）

选中父节点时，父节点下所有子节点也都全部选中

1，HTML代码

<h2>TreeView Checkable</h2>
<div id="treeview-checkable"></div>

2，Json数据

function getTvStateData() {
var defaultData = [
{
text: 'Parent 1',
href: '#parent1',
tags: ['4'],
state: {
checked: true
},
nodes: [
{
text: 'Child 1',
href: '#child1',
tags: ['2'],
nodes: [
{
text: 'Grandchild 1',
href: '#grandchild1',
tags: ['0']
},
{
text: 'Grandchild 2',
href: '#grandchild2',
tags: ['0']
}
]
},
{
text: 'Child 2',
href: '#child2',
tags: ['0']
}
]
},
{
text: 'Parent 2',
href: '#parent2',
tags: ['0'],
nodes: [
{
text: 'Child 1',
href: '#child1',
tags: ['2'],
nodes: [
{
text: 'Grandchild 1',
href: '#grandchild1',
tags: ['0']
},
{
text: 'Grandchild 2',
href: '#grandchild2',
tags: ['0']
}
]
},
{
text: 'Child 2',
href: '#child2',
tags: ['0']
}
]
},
{
text: 'Parent 3',
href: '#parent3'
},
{
text: 'Parent 4',
href: '#parent4',
tags: ['0']
},
{
text: 'Parent 5',
href: '#parent5',
tags: ['0']
}
]; return defaultData;
}

3，JS数据绑定，加载TreeView

$(function() {
var $checkableTree = $('#treeview-checkable')
.treeview({
data: getTvStateData(), //数据
showIcon: false,
showCheckbox: true,
levels: 1,
onNodeChecked: function(event, node) { //选中节点
var selectNodes = getChildNodeIdArr(node); //获取所有子节点
if (selectNodes) { //子节点不为空，则选中所有子节点
$('#treeview-checkable').treeview('checkNode', [selectNodes, { silent: true }]);
}
var parentNode = $("#treeview-checkable").treeview("getNode", node.parentId);
setParentNodeCheck(node);
},
onNodeUnchecked: function(event, node) { //取消选中节点
var selectNodes = getChildNodeIdArr(node); //获取所有子节点
if (selectNodes) { //子节点不为空，则取消选中所有子节点
$('#treeview-checkable').treeview('uncheckNode', [selectNodes, { silent: true }]);
}
},
onNodeExpanded:
function(event, data) {
if (data.nodes === undefined || data.nodes === null) { } else if (data.tags[0] === "2") {
alert("Tags 2");
} else {
alert("1111");
}
}
});
});