[by anantasaurabh]

This information might be useful to others.
when making an ajax request to cross domain session state is not maintained.
you need something like this.



Ext.Ajax.request({ url:...

[by anantasaurabh]

You can use Button.setBadgeText('2'). or do you mean you have problem finding instance of button?.
In that case you may use componentQuery or other relevant methods to get instance of button.

[by anantasaurabh]

You can use sortProperty:"fieldname". in grouper


grouper: {
groupFn: function(record) {
// Send back a formatted string date ...