Good day everyone,
I'm working with ExtJS 4.1 and I'm trying to write a code to automatically hide an alert message box after a certain time duration.
I typed following code:
Ext.Msg.alert('Error', 'form is not valid');
but it doesn't work and it raises the following exception:
Uncaught TypeError: Cannot call method 'defer' of undefined
What's the matter with that code, and how can I modify it to reach my goal?
Thanks in advance guys.