ExtJS 4.2.2 - Error when calling setBoxLabel() in an afterrender handler

1. 
   

   Thank you for reporting this bug. We will make it our priority to review this report.

   
   


2. 
   
   
   

   
   

   
   

   ExtJS 4.2.2 - Error when calling setBoxLabel() in an afterrender handler

   
   

   
   

   ExtJS 4.2.2 - Error when calling setBoxLabel() in an afterrender handler

   
   
   
   

   
   

   Hi, I'm using ExtJS 4.2.2 and I wanted to set boxLabel of a checkbox in an afterrender handler, but it ended with the error:
   

   "Uncaught TypeError: Cannot read property 'update' of null".

   
   

   You can see it in this fiddle: http://ift.tt/1jlrTwP.

   
   

   Workaround is setting the boxLabel property to non-empty value.

   
   

   
   

   
   

   
   

   
   

   
   
   
   

   ---