extjs2.0 异步树
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>
<head>
<title>tree.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css" href="/html/js/ext2/resources/css/ext-all.css" id="cssfile"/>
<script type="text/javascript" src="/html/js/ext2/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="/html/js/ext2/ext-all.js"></script>
<script type="text/javascript">
/**
tree demo 1 异步树
组成:
1.节点
a.普通节点
b.根节点
c.默认属性 id text leaf children icon
2..树加载器
3.树容器
4.事件
5.渲染
**/
Ext.onReady(function() {
var button_ = new Ext.Button({
id:'button_id',
text:'button_text',
iconCls:'iconCls',
handler:function(){
alert(opTree.getChecked('id'));
}
});
//异步根节点
var opRoot = new Ext.tree.AsyncTreeNode({
id:'1',
text:'root'
});
//与后台通讯的加载器
var loader = new Ext.tree.TreeLoader({
dataUrl: '/organizationAction.do',
baseParams:{
method:'getTree',
pId:''
}
});
//树容器
var opTree = new Ext.tree.TreePanel({
anchor : '95%',
frame : true,
width:200,
height:400,
animate : false,
rootVisible : true,
autoScroll : true,
loader : loader, //之前定义的加载器
root : opRoot,//之前定义的根节点
tbar:[
button_
]
});
//加载之前所触发的事件
opTree.loader.on("beforeload", function(treeLoader, node) {
loader.baseParams.pId = node.attributes.id;
});
//树节点点击事件
opTree.on('click',function(node) {
//alert(node.attributes.text);
});
//渲染树容器
opTree.render(Ext.getBody());
//刷新树 root.reload();
});
</script>
</head>
<body>
</body>
</html>
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