本节为ExtJS表格学习的最后一节，学完我将学习表单与输入控件的内容。
树形表格（TreeGrid）同时具备树形的分级结构和表格的丰富内容。
先引入扩展组件，老规矩：
//引入扩展组件
Ext.Loader.setConfig({enabled: true});
Ext.Loader.setPath('Ext.ux', '../ExtJS4.2/ux/');
Ext.require([
'Ext.data.*',
'Ext.grid.*',
'Ext.tree.*',
'Ext.ux.CheckColumn'
]);
接下来创建TreeGrid
Ext.onReady(function(){
Ext.QuickTips.init();
//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-data.json'
},
folderSort: true
});
//Ext.ux.tree.TreeGrid在UX扩展中也有，但不常用，您可以简单地使用一个tree.TreePanel
var tree = Ext.create('Ext.tree.Panel', {
title: 'Core Team Projects',
width: 500,
height: 300,
renderTo: 'treegrid',
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
}, {
xtype: 'checkcolumn',
header: 'Done',
dataIndex: 'done',
width: 40,
stopSelection: false
}, {
text: 'Edit',
width: 40,
menuDisabled: true,
xtype: 'actioncolumn',
tooltip: 'Edit task',
align: 'center',
icon: '../MyDemo/p_w_picpaths/edit.png',
handler: function(grid, rowIndex, colIndex, actionItem, event, record, row) {
Ext.Msg.alert('Editing' + (record.get('done') ? ' completed task' : '') , record.get('task'));
}
}]
});
});
在列定义中有xtype: 'treecolumn',这是告诉列要以树形列来显示，在以后的表单或其他容器中也会以这样的方式来显示，有panelcolumn等，这里等以后讲到再说。
再看下JSON数据格式，后台只要符合这种形式，EXTJS就会给你自动解析出来：
{"text":".","children": [
{
task:'Project: Shopping',
duration:13.25,
user:'Tommy Maintz',
iconCls:'task-folder',
expanded: true,
children:[{
task:'Housewares',
duration:1.25,
user:'Tommy Maintz',
iconCls:'task-folder',
children:[{
task:'Kitchen supplies',
duration:0.25,
user:'Tommy Maintz',
leaf:true,
iconCls:'task'
},{
task:'Groceries',
duration:.4,
user:'Tommy Maintz',
leaf:true,
iconCls:'task',
done: true
},{
task:'Cleaning supplies',
duration:.4,
user:'Tommy Maintz',
leaf:true,
iconCls:'task'
},{
task: 'Office supplies',
duration: .2,
user: 'Tommy Maintz',
leaf: true,
iconCls: 'task'
}]
}, {
task:'Remodeling',
duration:12,
user:'Tommy Maintz',
iconCls:'task-folder',
expanded: true,
children:[{
task:'Retile kitchen',
duration:6.5,
user:'Tommy Maintz',
leaf:true,
iconCls:'task'
},{
task:'Paint bedroom',
duration: 2.75,
user:'Tommy Maintz',
iconCls:'task-folder',
children: [{
task: 'Ceiling',
duration: 1.25,
user: 'Tommy Maintz',
iconCls: 'task',
leaf: true
}, {
task: 'Walls',
duration: 1.5,
user: 'Tommy Maintz',
iconCls: 'task',
leaf: true
}]
},{
task:'Decorate living room',
duration:2.75,
user:'Tommy Maintz',
leaf:true,
iconCls:'task',
done: true
},{
task: 'Fix lights',
duration: .75,
user: 'Tommy Maintz',
leaf: true,
iconCls: 'task',
done: true
}, {
task: 'Reattach screen door',
duration: 2,
user: 'Tommy Maintz',
leaf: true,
iconCls: 'task'
}]
}]
},{
task:'Project: Testing',
duration:2,
user:'Core Team',
iconCls:'task-folder',
children:[{
task: 'Mac OSX',
duration: 0.75,
user: 'Tommy Maintz',
iconCls: 'task-folder',
children: [{
task: 'FireFox',
duration: 0.25,
user: 'Tommy Maintz',
iconCls: 'task',
leaf: true
}, {
task: 'Safari',
duration: 0.25,
user: 'Tommy Maintz',
iconCls: 'task',
leaf: true
}, {
task: 'Chrome',
duration: 0.25,
user: 'Tommy Maintz',
iconCls: 'task',
leaf: true
}]
},{
task: 'Windows',
duration: 3.75,
user: 'Darrell Meyer',
iconCls: 'task-folder',
children: [{
task: 'FireFox',
duration: 0.25,
user: 'Darrell Meyer',
iconCls: 'task',
leaf: true
}, {
task: 'Safari',
duration: 0.25,
user: 'Darrell Meyer',
iconCls: 'task',
leaf: true
}, {
task: 'Chrome',
duration: 0.25,
user: 'Darrell Meyer',
iconCls: 'task',
leaf: true
},{
task: 'Internet Exploder',
duration: 3,
user: 'Darrell Meyer',
iconCls: 'task',
leaf: true
}]
},{
task: 'Linux',
duration: 0.5,
user: 'Aaron Conran',
iconCls: 'task-folder',
children: [{
task: 'FireFox',
duration: 0.25,
user: 'Aaron Conran',
iconCls: 'task',
leaf: true
}, {
task: 'Chrome',
duration: 0.25,
user: 'Aaron Conran',
iconCls: 'task',
leaf: true
}]
}]
}
]}
这里还有一个扩展功能，如下：
表头点击箭头就会出现过滤组件，便于筛选数据，每列都有，是不是很丰富啊。
下面看代码：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Hello Extjs4.2</title>
<link href="../ExtJS4.2/resources/css/ext-all.css" rel="stylesheet">
<script src="../ExtJS4.2/ext-all.js"></script>
<script src="../ExtJS4.2/locale/ext-lang-zh_CN.js"></script>
<script type="text/javascript">
//引入扩展组件
Ext.Loader.setConfig({enabled: true});
Ext.Loader.setPath('Ext.ux', '../ExtJS4.2/ux/');
Ext.require([
'Ext.grid.*',
'Ext.data.*',
'Ext.ux.grid.FiltersFeature',
'Ext.toolbar.Paging',
'Ext.ux.ajax.JsonSimlet',
'Ext.ux.ajax.SimManager'
]);
Ext.define('Product', {
extend: 'Ext.data.Model',
fields: [{
name: 'id',
type: 'int'
}, {
name: 'company'
}, {
name: 'price',
type: 'float'
}, {
name: 'date',
type: 'date',
dateFormat: 'Y-m-d'
}, {
name: 'visible',
type: 'boolean'
}, {
name: 'size'
}]
});
Ext.onReady(function(){
Ext.ux.ajax.SimManager.init({
delay: 300,
defaultSimlet: null
}).register({
'myData': {
data: [
['small', 'small'],
['medium', 'medium'],
['large', 'large'],
['extra large', 'extra large']
],
stype: 'json'
}
});
var optionsStore = Ext.create('Ext.data.Store', {
fields: ['id', 'text'],
proxy: {
type: 'ajax',
url: 'myData',
reader: 'array'
}
});
Ext.QuickTips.init();
// for this demo configure local and remote urls for demo purposes
var url = {
local: 'grid-filter.json', // static data file
remote: 'grid-filter.php'
};
// configure whether filter query is encoded or not (initially)
var encode = false;
// configure whether filtering is performed locally or remotely (initially)
var local = true;
var store = Ext.create('Ext.data.JsonStore', {
// store configs
autoDestroy: true,
model: 'Product',
proxy: {
type: 'ajax',
url: (local ? url.local : url.remote),
reader: {
type: 'json',
root: 'data',
idProperty: 'id',
totalProperty: 'total'
}
},
remoteSort: false,
sorters: [{
property: 'company',
direction: 'ASC'
}],
pageSize: 50
});
var filters = {
ftype: 'filters',
// encode and local configuration options defined previously for easier reuse
encode: encode, // json encode the filter query
local: local, // defaults to false (remote filtering)
// Filters are most naturally placed in the column definition, but can also be
// added here.
filters: [{
type: 'boolean',
dataIndex: 'visible'
}]
};
// use a factory method to reduce code while demonstrating
// that the GridFilter plugin may be configured with or without
// the filter types (the filters may be specified on the column model
var createColumns = function (finish, start) {
var columns = [{
dataIndex: 'id',
text: 'Id',
// instead of specifying filter config just specify filterable=true
// to use store's field's type property (if type property not
// explicitly specified in store config it will be 'auto' which
// GridFilters will assume to be 'StringFilter'
filterable: true,
width: 30
//,filter: {type: 'numeric'}
}, {
dataIndex: 'company',
text: 'Company',
id: 'company',
flex: 1,
filter: {
type: 'string'
// specify disabled to disable the filter menu
//, disabled: true
}
}, {
dataIndex: 'price',
text: 'Price',
filter: {
//type: 'numeric' // specify type here or in store fields config
},
width: 70
}, {
dataIndex: 'size',
text: 'Size',
filter: {
type: 'list',
store: optionsStore
//,phpMode: true
}
}, {
dataIndex: 'date',
text: 'Date',
filter: true,
renderer: Ext.util.Format.dateRenderer('m/d/Y')
}, {
dataIndex: 'visible',
text: 'Visible'
// this column's filter is defined in the filters feature config
}];
return columns.slice(start || 0, finish);
};
var grid = Ext.create('Ext.grid.Panel', {
border: false,
store: store,
columns: createColumns(4),
loadMask: true,
features: [filters],
dockedItems: [Ext.create('Ext.toolbar.Paging', {
dock: 'bottom',
store: store
})],
emptyText: 'No Matching Records'
});
// add some buttons to bottom toolbar just for demonstration purposes
grid.child('pagingtoolbar').add([
'->',
{
text: 'Encode: ' + (encode ? 'On' : 'Off'),
tooltip: 'Toggle Filter encoding on/off',
enableToggle: true,
handler: function (button, state) {
var encode = (grid.filters.encode !== true);
var text = 'Encode: ' + (encode ? 'On' : 'Off');
grid.filters.encode = encode;
grid.filters.reload();
button.setText(text);
}
},
{
text: 'Local Filtering: ' + (local ? 'On' : 'Off'),
tooltip: 'Toggle Filtering between remote/local',
enableToggle: true,
handler: function (button, state) {
var local = (grid.filters.local !== true),
text = 'Local Filtering: ' + (local ? 'On' : 'Off'),
newUrl = local ? url.local : url.remote,
store = grid.view.getStore();
// update the GridFilter setting
grid.filters.local = local;
// bind the store again so GridFilters is listening to appropriate store event
grid.filters.bindStore(store);
// update the url for the proxy
store.proxy.url = newUrl;
button.setText(text);
store.load();
}
},
{
text: 'All Filter Data',
tooltip: 'Get Filter Data for Grid',
handler: function () {
var data = Ext.encode(grid.filters.getFilterData());
Ext.Msg.alert('All Filter Data',data);
}
},{
text: 'Clear Filter Data',
handler: function () {
grid.filters.clearFilters();
}
},{
text: 'Add Columns',
handler: function () {
if (grid.headerCt.items.length < 6) {
grid.headerCt.add(createColumns(6, 4));
grid.view.refresh();
this.disable();
}
}
}
]);
var win = Ext.create('Ext.Window', {
title: 'Grid Filters Example',
height: 400,
width: 700,
layout: 'fit',
items: grid
}).show();
store.load();
});
</script>
</head>
<body>
<h1>我的ExtJS4.2学习之路</h1>
<hr />
作者：束洋洋
开始日期：2013年11月26日 22:57:53
<h2>深入浅出ExtJS之树形表格</h2>
<div id="grid"></div>
</body>
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