Basics: Difference between Synchronous Events and Asynchronous Events in SharePoint

Hi All,

following are the differences between Synchronous and Asynchronous Events ...

Synchronous Events

•   Fire “before” the actual events
•   You can get HttpContent
•   You can display error message
•   You can cancel the event.
•   Synchronous methods ending with “ing” like ItemAdding, ItemUpdating and ItemDeleting.

Asynchronous Events

•   Fire “after” the actual events
•   You cannot get HttpContent
•   You cannot display error message
•   You cannot cancel the event
•   Asynchronous methods ending with “ed” like ItemAdded,IitemUpdated and ItemDeleted etc.

Thanks.

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