实例化。这里增加了三个属性，可以指定idFiled，textFiled和parentField。所以这里的simpleData可以不严格转换成tree的数据格式。

$(function(){	$(‘#tt3‘).tree({		checkbox: true,		url: ‘tree_data_simp.php‘,		parentField:"pid",		textFiled:"name",		idFiled:"key"	});});

tree_data_simp.php 的json数据类型。是一个扁平结构数据集。

[    {        "key": 1,        "name": "Folder1",        "iconCls": "icon-ok"    },    {        "key": 2,		"pid": 1,        "name": "File1",        "checked": true    },    {        "key": 3,		"pid": 1,        "name": "Folder2",        "state": "open"    },    {        "key": 4,        "pid": 3,        "name": "File3",        "attributes": {            "p1": "value1",            "p2": "value2"        },        "checked": true,        "iconCls": "icon-reload"    },    {        "key": 8,        "pid": 3,        "name": "Async Folder"    },    {        "key": 9,        "name": "language",        "state": "closed"    },    {        "key": "j1",        "pid": 9,        "name": "Java"    },    {        "key": "j2",        "pid": 9,        "name": "C#"    }]

自定义loadFilter的实现

$.fn.tree.defaults.loadFilter = function (data, parent) {	var opt = $(this).data().tree.options;	var idFiled,	textFiled,	parentField;	if (opt.parentField) {		idFiled = opt.idFiled || ‘id‘;		textFiled = opt.textFiled || ‘text‘;		parentField = opt.parentField;				var i,		l,		treeData = http://www.mamicode.com/[],>
easyui 扩展 之 Tree的simpleData加载