comboBox经过DWR调用更新value

var store = [];

var combo = new Ext.form.ComboBox({
		store: store,
		fieldLabel:'下拉框',
		//typeAhead: true,
		mode: 'local',
		id:'id',
		name: 'name',
		anchor:'100%',
		editable :true,
		triggerAction: 'all',
		selectOnFocus:true
})	

DWREngine.setAsync(false);
dwrClass.function(parameters,function(data){
    	 store=data;
});
combo.store.loadData(store);//从传入的数据块中装载数据，并触发load事件。
DWREngine.setAsync(false);