ExtJs动态生成treepanel的Json格式

在节点中加上"checked"属性，会自动生成checkbox。

获取选中节点

var nodeArray = "";

var nodesObj = mytree.getChecked();

var i;var length=nodesObj .length;

for (i = 0; i < length; i++) {

nodeArray += nodesObj[i].id + ','; //允许多选的情况。如果不允许多选，就直接nodesObj[i].id

}

nodeArray = nodeArray.substring(0, nodeArray.length - 1);

Json格式如下：

[{

"text": "To Do",

"cls": "folder",

"expanded": true,

"children": [{

"text": "Go jogging",

"leaf": true,

"checked": true

},{

"text": "Take a nap",

"leaf": true,

"checked": false

},{

"text": "Climb Everest",

"leaf": true,

"checked": false

}]

},{

"text": "Grocery List",

"cls": "folder",

"children": [{

"text": "Bananas",

"leaf": true,

"checked": false

},{

"text": "Milk",

"leaf": true,

"checked": false

},{

"text": "Cereal",

"leaf": true,

"checked": false

},{

"text": "Energy foods",

"cls": "folder",

"children": [{

"text": "Coffee",

"leaf": true,

"checked": false

},{

"text": "Red Bull",

"leaf": true,

"checked": false

}]

}]

},{

"text": "Remodel Project",

"cls": "folder",

"children": [{

"text": "Finish the budget",

"leaf": true,

"checked": false

},{

"text": "Call contractors",

"leaf": true,

"checked": false

},{

"text": "Choose design",

"leaf": true,

"checked": false

}]

}]

以上所述就是本文的全部内容了，希望大家能够喜欢。