ext中ArrayStore,JsonStore,XmlStore的用法

1.Store的用法

var _store = new Ext.data.Store();

var _record = new Ext.data.Record(["name","sex"]);

var _recordClone = new Ext.data.Record(["name","sex"]);

_record.set('name','张翔');

_record.set('sex','男');

_store.add(_record);

_recordClone.set('name','李慧敏');

_recordClone.set('sex','女');

_store.add(_recordClone);

//alert(_store.getCount());

//alert(_store.getAt(1).get('sex'));

2.ArrayStore的用法
var _store = new Ext.data.ArrayStore({

data:[{name:'张翔',sex:'男'},{name:'李慧敏',sex:'女'}],

fields:[{name:'name',mapping:'name'},{name:'sex',mapping:'sex'}]
});

alert(_store.getAt(1).get('sex'));

3.JsonStore的用法(和ArrayStore差不多，2.0版本之前 ArrayStore是JsonStore的子类)
var _store = new Ext.data.JsonStore({

data:[{name:'张翔',sex:'男'},{name:'李慧敏',sex:'女'}],

fields:[{name:'name',mapping:'name'},{name:'sex',mapping:'sex'}]
});
alert(_store.getAt(1).get('sex'));

4.XmlStore的用法
var _emp = Ext.data.Record.create([{name:'name',mapping:'name'},{name:'sex',mapping:'sex'}]);
var _store = new Ext.data.XmlStore({

url:'/store/xmlStore.xml',

reader:new Ext.data.XmlReader({
totalRecords:'xml',
record:'emp',
id:'id'
},_emp)
});

_store.load();

alert(_store.getCount());

alert(_store.getAt(1).get('sex'));