Wednesday, November 11, 2009

Event Receivers: How to add event receivers to a sharepoint list

Scenario: How to add custom event receivers to a specific sharepoint list using SharePoint Object Model

Approach:

SPList list = web.Lists["MyList"];

string assemblyName = "CustomSharePointEventReceivers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=d517db3ed1131947";

string className = "CustomSharePointEventReceivers.MyEventReceivers";
list.EventReceivers.Add(SPEventReceiverType.ItemAdding, assemblyName, className);
list.EventReceivers.Add(SPEventReceiverType.ItemAdded, assemblyName, className);
list.EventReceivers.Add(SPEventReceiverType.ItemUpdating, assemblyName, className);



Note: In general, custom event receivers to a specific list will be added through Sharepoint features by defining a feature event receivers by extending SPFeatureReceiver. In the SPFeatureReceiver, override all the 4 methods i.e, FeatureInstalled,FeatureActivated, FeatureDeactivating and FeatureUninstalling. In these overriden methods, write above code piece.

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