ExtJS panel展开时加载数据或页面

panel展开时加载数据或页面,对expand或collapse事件进行响应就行

collapsible: true,
collapsed :true,

listeners:{
'expand': function(p, eOpts){
store5.load({
params: {
project_id : [% project_id %],
type : 'store5',
month : month
},
callback: function(records , operation , success){
var arrival = 0;
var resolved = 0;
store5.each(function(record){
arrival = arrival + record.get('Arrival');
resolved = resolved + record.get('Resolved');
record.set('Arrival' , arrival);
record.set('Resolved' , resolved);
record.commit();
});
}

});

}
},