ext的几种store定义和赋值

1. 对应gridpanel的store定义：

var store = new Ext.data.Store({
	proxy: new Ext.data.HttpProxy({
		method: 'post',
		url: ''
	}),
	reader: new Ext.data.JsonReader({
			totalProperty : 'TOTALCOUNT',
			root : 'ROOT'
		}, [
		'id', 'name', 'parentName', 'title'
	])
	//reader: new Ext.data.JsonReader({}, [
	//	'id', 'name', 'parentName', 'title'
	//])
});

如果返回的json数据没有分页信息，reader使用被注释的；

2. SimpleStore，常量store定义

new Ext.data.SimpleStore({
	fields : ['name'],
	data : [
		['aaaa']
	   ]
})

3. Ext.data.ArrayStore

var searchStore = new Ext.data.ArrayStore({
	fields: ['name'],
	idIndex: 1
});
searchStore.removeAll();
searchStore.add(new Ext.data.Record({name: 'code2'}));
searchStore.add(new Ext.data.Record({name: 'code3'}));
searchStore.add(new Ext.data.Record({name: 'code4'}));

4. 通过Ext.data.Record给store定义字段：

var rt = Ext.data.Record.create([
    {name: 'fullname'},
    {name: 'first'}
]);
var myStore = new Ext.data.Store({
    reader: new Ext.data.ArrayReader(
        {
            idIndex: 0  // id for each record will be the first element
        },
        rt 
    )
});

5. 通过常量数组给store赋值：

var myData = [
    [1, 'Fred Flintstone', 'Fred'],  // note that id for the record is the first element
    [2, 'Barney Rubble', 'Barney']
];
myStore.loadData(myData);

6. store通过Ext.data.XmlReader接收xml格式数据

var store= new Ext.data.Store({
		url: '',
		reader: new Ext.data.XmlReader({
			totalProperty: 'total',
			record: 'unit',
			id: 'code2'
		}, [{
			name: 'code2', mapping: 'code2'
		}, 'code3', 'code4'])
	});

从后台返回的数据需要加上一句：

response.setContentType("text/xml; charset=UTF-8");