Sharepoint eventhandler itemupdating
For example, when a new item is added to a list, we may need to perform some action like say, notifying the person who created the list item, or modifying the dependent entries in some other location etc.Handling of such events is facilitated by event receivers.Feature Deactivating – This occurs when a feature is being deactivated.Feature Installed – This occurs after a feature is installed.Field Deleting – This occurs when a field is being deleted from a list.Field Updated – This occurs after a field is updated in a list.Item Deleted – This occurs after an item is deleted from its list.
Item Unchecked Out – This occurs after un-checking an item in a list.
In this case, there is a flexibility of cancelling the event on some conditions so that the event that gets initiated will not occur.
Asynchronous event receivers are also known as ‘After’ event receivers.
Item Checked In – This occurs after an item is checked in.
Item Checked Out – This occurs after an item is checked out.
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Synchronous event receivers are also known as ‘Before’ event receivers.