最近調(diào)試EXTJS 4的treegrid實(shí)例，看了很多水友的文章，以及官方的demo， 沒(méi)一個(gè)可靠的，全都無(wú)法顯示出來(lái)。像對(duì)于我們習(xí)慣用C++的coder來(lái)說(shuō)，EXTJS簡(jiǎn)直就是一群無(wú)政府土匪來(lái)維護(hù)的，官網(wǎng)上連個(gè)搜索框都沒(méi)有，找資料基本靠遍歷，還是人工的。

使用treegrid，需要在調(diào)用頁(yè)面的head中加載以下幾個(gè)文件：

復(fù)制代碼 代碼如下:

<link type="text/css" href="css/ext-all.css">
<script type="text/javascript" src="ext-all.js"></script>
<script type="text/javascript" src="treegrid.js"></script>

復(fù)制代碼 代碼如下:

<div></div>

復(fù)制代碼 代碼如下:

/*
This file is part of Ext JS 4
Copyright (c) 2011 Sencha Inc
Contact:
GNU General Public License Usage
This file may be used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in the packaging of this file. Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met:
If you are unsure which license is appropriate for your use, please contact the sales department at
*/
Ext.require([
'Ext.data.*',
'Ext.grid.*',
'Ext.tree.*'
]);
Ext.onReady(function() {
//we want to setup a model and store instead of using dataUrl
Ext.define('Task', {
extend: 'Ext.data.Model',
fields: [
{name: 'task', type: 'string'},
{name: 'user', type: 'string'},
{name: 'duration', type: 'string'}
]
});
var store = Ext.create('Ext.data.TreeStore', {
model: 'Task',
proxy: {
type: 'ajax',
//the store will get the content from the .json file
url: 'treegrid.json'
},
folderSort: true
});
//Ext.ux.tree.TreeGrid is no longer a Ux. You can simply use a tree.TreePanel
var tree = Ext.create('Ext.tree.Panel', {
title: 'Core Team Projects',
width: 500,
height: 300,
renderTo: 'tree-example',//2B的官方和SV黨們，這里竟然是getbody，bo你妹啊。
collapsible: true,
useArrows: true,
rootVisible: false,
store: store,
multiSelect: true,
singleExpand: true,
//the 'columns' property is now 'headers'
columns: [{
xtype: 'treecolumn', //this is so we know which column will show the tree
text: 'Task',
flex: 2,
sortable: true,
dataIndex: 'task'
},{
//we must use the templateheader component so we can use a custom tpl
xtype: 'templatecolumn',
text: 'Duration',
flex: 1,
sortable: true,
dataIndex: 'duration',
align: 'center',
//add in the custom tpl for the rows
tpl: Ext.create('Ext.XTemplate', '{duration:this.formatHours}', {
formatHours: function(v) {
if (v < 1) {
return Math.round(v * 60) + ' mins';
} else if (Math.floor(v) !== v) {
var min = v - Math.floor(v);
return Math.floor(v) + 'h ' + Math.round(min * 60) + 'm';
} else {
return v + ' hour' + (v === 1 ? '' : 's');
}
}
})
},{
text: 'Assigned To',
flex: 1,
dataIndex: 'user',
sortable: true
}]
});
});