Ext：Ext.menu.Menu动态加载菜单

var createMenu = new Ext.menu.Menu({
id : 'mainMenu',
items : [],
listeners : {
click : function(menu, item, e) {
var record = groupLevelStore.getAt(item.getId());
addGroup(record);
}
}
})
// 字段
var groupLevelFields = ["id", "levelName", "capacity"];
// 记录
var groupLevelRecord = new Ext.data.Record.create([{
name : "id"
}, {
name : "levelName"
}, {
name : "capacity"
}]);
// 数据
groupLevelStore = new Ext.data.Store({
// 代理
proxy : new Ext.data.HttpProxy({
url : Action.corp.GroupLevelMngAction.GET_USERDEFAULTGROUPLEVEL,
method : "POST"
}),
// 解析器
reader : new Ext.data.JsonReader({
fields : groupLevelFields,
root : "data",
id : "id",
totalProperty : "totalCount"
}, groupLevelRecord)
});
groupLevelStore.load({
callback : function(records, options, success) {

if (records.length == 0) {
Ext.getCmp('createGroup').setDisabled(true);
}else{
for (var i = 0; i < records.length; i++) {
var item = new Ext.menu.Item({
text : "创建" + records[i].data.levelName,
id : i + ''
});
createMenu.addItem(item);
}
}
},
scope : groupLevelStore
})
// 工具栏
var toolBar = new Ext.Toolbar(["", "-", "", {
text : "创建群",
id:"createGroup",
iconCls : "addicon",
menu : createMenu
},
}]);