Many tile it happens that we update an item and call custom Item added event listener.
Now suppose , if we have to update some item of list in the event listner so the update event will get fire again from the listener and it will be a never endin g loop..
In order to solve that, there is a one line solution...
In the ItemUpdated event,
put the following code:
then update the list and again enable the same
This will solve the issue.