学习和应用extjs Developing with Extjs - tricks and tips. (4)

来源http://www.akbkhome.com/blog.php/View/137/Developing_with_Extjs__tricks_and_tips.html
[b]更有效的组合框[/b]
function myCombo() {
this.Store = new Ext.data.Store({
proxy: new Ext.data.HttpProxy({
url: baseURL + '/MyLister.js'
}),
reader: new Ext.data.JsonReader({
root: 'data',
totalProperty: 'totalCount',
id: 'id'
}, [ 'id', 'fullname' ]) });
}
this.Store.load();
config.store = this.Store;
myCombo.superclass.constructor.call(this, config);
}
Ext.extend(FlexyCash.AccountCombo, Ext.form.ComboBox, {
mode: 'local', .....});
这里是用json访问远程数据，其改进的关键点在于mode设置成：'local'，如此一来，只要激活
combo.store.load() 方法就能刷新数据了