Ext.data.PagingMemoryProxy分页一次性读取数据的实现代码
Ext.data.PagingMemoryProxy分页一次性读取数据的实现代码
发布时间:2016-12-29 来源:查字典编辑
摘要:1建立get.phpget.php=>复制代码代码如下:2在下载的extjs中搜索到PagingMemoryProxy.js,与get.ph...

1 建立get.php

get.php=>

复制代码 代码如下:

<?php

$data=array(

array(1,"yixing",123),

array(2,"chenlin",13),

array(3,"lixin",123),

array(4,"liumei",344),

array(5,"qiuye",343),

array(6,"zhangli",231),

array(7,"chenggong",1234),

array(9,"linmei",123),

array(10,"gaoxin",234),

array(11,"ximi",1234),

array(12,"suoming",1234)

);

echo json_encode($data);

?>

2 在下载的extjs中搜索到PagingMemoryProxy.js,与get.php放在一个文件夹中

3 建立文件grid.html

grid.html=>

复制代码 代码如下:

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gbk">

<script type="text/javascript" src="PagingMemoryProxy.js"></script>

<script type="text/javascript">

Ext.onReady(function() {

store=new Ext.data.Store({

reader:new Ext.data.ArrayReader({},[ //读数组到一个元数据对象

{name:'id'},

{name:'name'},

{name:'password'}

])

});

Ext.Ajax.request({ //读取后台传递于前台数据

url: 'get.php',

method:'get',

success:function(response, opts){

var obj= Ext.decode(response.responseText);//obj储存响应的数据

store.proxy = new Ext.data.PagingMemoryProxy(obj),//PagingMemoryProxy() 一次性读取数据

store.load({params:{start:0,limit:5}});//按5条记录分布

},

failure: function(){Ext.Msg.alert("failure");}

});

var grid=new Ext.grid.GridPanel({

store:store,//装载store

mode:'remote',

width:450,

height:200,

applyTo:'grid',

frame:true,

columns:[

{header:"number",width:50,dataIndex:'id',sortable:true},

{header:"name",width:80,dataIndex:'name',sortable:true},

{header:"password",width:80,dataIndex:'password',sortable:true}

],

tbar:new Ext.PagingToolbar({//工具栏

pageSize:5,

store:store,

displayInfo:true,

displayMsg:'From {0} To {1} records,all records are {2} ',

emptyMsg:"no records"

}),

viewConfig:{

forceFit:true

}

})

});

</script>

</head>

<body>

<div id="grid"></div>

</body>

</html>

4 建立文件r01.js

r01.js=>

复制代码 代码如下:

Ext.onReady(function() {

Ext.QuickTips.init();

var root=new Ext.tree.TreeNode({

text:'简单树形',

expanded:true

})

var user=(new Ext.tree.TreeNode({

text:'用户',

expanded:true

})

)

var user1=new Ext.tree.TreeNode({

text:'用户1'

})

var user2=new Ext.tree.TreeNode({

text:'用户2',

})

root.appendChild(user);

user.appendChild(user1);

user.appendChild(user2);

//建立根节点

var tree=new Ext.tree.TreePanel({

width:180,

height:300,

root:root

})

//中间区域

var tabPanel = new Ext.TabPanel({

region : 'center',

enableTabScroll : true,

activeTab :0,

margins:'5 5 5 5',

items : [{

id : 'homePage',

title : '首页',

autoScroll : true,

html:'<div

}]

});

function treeClick(){

tabPanel.add({

title:'用户',

id:'1',

activeTab:1,

closable:true,

autoLoad:{

url:'grid.html',

scripts:true

}

})

}

user1.on("click",treeClick);

//界面显示

new Ext.Viewport({

title:'Ext.Viewport示例',

layout:'border',

items:[

{

region:'west',

layout:'fit',

width:200,

collapsible:true,

margins:'5 0 5 5',

items:tree

},{

region:'center',

width:200,

layout:'fit',

margins:'5 0 5 5',

items:tabPanel

}]

})

});

5 建立r01.php

r01.php=>

复制代码 代码如下:

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gbk">

<title>Insert title here</title>

<link rel="stylesheet" type="text/css" href="http://www.cnblogs.com/ext/resources/css/ext-all.css" />

<script type="text/javascript" src="http://www.cnblogs.com/ext/adapter/ext/ext-base.js"></script>

<script type="text/javascript" src="http://www.cnblogs.com/ext/ext-all.js"></script>

<script type="text/javascript" src="r01.js"></script>

</head>

<body>

</body>

</html>

6 浏览器中输入http://localhost/register_01/r01/r01.php

Ext.data.PagingMemoryProxy分页一次性读取数据的实现代码1

Ext.data.PagingMemoryProxy分页一次性读取数据的实现代码2

7 总结

树形监听事件:tree.on

Ext.data.ArrayReader读取数组到一个元数据对象

复制代码 代码如下:

function(response, opts){

var obj= Ext.decode(response.responseText);//obj储存响应的数据

store.proxy = new Ext.data.PagingMemoryProxy(obj),//PagingMemoryProxy()一次性读取数据

store.load({params:{start:0,limit:5}});//按5条记录分布

}//分页基本应用

Ext.PagingToolbar基本应用

extjs相关帮助文档:http://www.extjs.com/deploy/dev/docs/

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