bootstrap-treeview 如何实现全选父节点下所有子节点及反选

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

1 <h2>TreeView Checkableh2>
2 <div id="treeview-checkable">div>

2，Json数据

 1  function getTvStateData() {
 2             var defaultData = [
 3                 {
 4                     text: 'Parent 1',
 5                     href: '#parent1',
 6                     tags: ['4'],
 7                     state: {
 8                         checked: true
 9                     },
10                     nodes: [
11                         {
12                             text: 'Child 1',
13                             href: '#child1',
14                             tags: ['2'],
15                             nodes: [
16                                 {
17                                     text: 'Grandchild 1',
18                                     href: '#grandchild1',
19                                     tags: ['0']
20                                 },
21                                 {
22                                     text: 'Grandchild 2',
23                                     href: '#grandchild2',
24                                     tags: ['0']
25                                 }
26                             ]
27                         },
28                         {
29                             text: 'Child 2',
30                             href: '#child2',
31                             tags: ['0']
32                         }
33                     ]
34                 },
35                 {
36                     text: 'Parent 2',
37                     href: '#parent2',
38                     tags: ['0'],
39                     nodes: [
40                         {
41                             text: 'Child 1',
42                             href: '#child1',
43                             tags: ['2'],
44                             nodes: [
45                                 {
46                                     text: 'Grandchild 1',
47                                     href: '#grandchild1',
48                                     tags: ['0']
49                                 },
50                                 {
51                                     text: 'Grandchild 2',
52                                     href: '#grandchild2',
53                                     tags: ['0']
54                                 }
55                             ]
56                         },
57                         {
58                             text: 'Child 2',
59                             href: '#child2',
60                             tags: ['0']
61                         }
62                     ]
63                 },
64                 {
65                     text: 'Parent 3',
66                     href: '#parent3'
67                 },
68                 {
69                     text: 'Parent 4',
70                     href: '#parent4',
71                     tags: ['0']
72                 },
73                 {
74                     text: 'Parent 5',
75                     href: '#parent5',
76                     tags: ['0']
77                 }
78             ];
79 
80             return defaultData;
81         }

3，JS数据绑定，加载TreeView

 1  $(function() {
 2  var $checkableTree = $('#treeview-checkable')
 3                 .treeview({
 4                     data: getTvStateData(), //数据
 5                     showIcon: false,
 6                     showCheckbox: true,
 7                     levels: 1,
 8                     onNodeChecked: function(event, node) { //选中节点
 9                         var selectNodes = getChildNodeIdArr(node); //获取所有子节点
10                         if (selectNodes) { //子节点不为空，则选中所有子节点
11                             $('#treeview-checkable').treeview('checkNode', [selectNodes, { silent: true }]);
12                         }
13                         var parentNode = $("#treeview-checkable").treeview("getNode", node.parentId);
14                         setParentNodeCheck(node);
15                     },
16                     onNodeUnchecked: function(event, node) { //取消选中节点
17                         var selectNodes = getChildNodeIdArr(node); //获取所有子节点
18                         if (selectNodes) { //子节点不为空，则取消选中所有子节点
19                             $('#treeview-checkable').treeview('uncheckNode', [selectNodes, { silent: true }]);
20                         }
21                     },
22                     onNodeExpanded:
23                         function(event, data) {
24                             if (data.nodes === undefined || data.nodes === null) {
25                                
26                             } else if (data.tags[0] === "2") {
27                                 alert("Tags 2");
28                             } else {
29                                 alert("1111");
30                             }
31                         }
32                 });
33  });

4，选中/取消选中父节点时，选中/取消选中所有子节点，以及选中所有子节点时，选中父节点

 1  function getChildNodeIdArr(node) {
 2             var ts = [];
 3             if (node.nodes) {
 4                 for (x in node.nodes) {
 5                     ts.push(node.nodes[x].nodeId);
 6                     if (node.nodes[x].nodes) {
 7                         var getNodeDieDai = getChildNodeIdArr(node.nodes[x]);
 8                         for (j in getNodeDieDai) {
 9                             ts.push(getNodeDieDai[j]);
10                         }
11                     }
12                 }
13             } else {
14                 ts.push(node.nodeId);
15             }
16             return ts;
17         }
18 
19         function setParentNodeCheck(node) {
20             var parentNode = $("#treeview-checkable").treeview("getNode", node.parentId);
21             if (parentNode.nodes) {
22                 var checkedCount = 0;
23                 for (x in parentNode.nodes) {
24                     if (parentNode.nodes[x].state.checked) {
25                         checkedCount ++;
26                     } else {
27                         break;
28                     }
29                 }
30                 if (checkedCount === parentNode.nodes.length) {
31                     $("#treeview-checkable").treeview("checkNode", parentNode.nodeId);
32                     setParentNodeCheck(parentNode);
33                 }
34             }
35         }