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Howto: Remove an Event Receiver in SharePoint

Everyone and their brother shows you the quick and dirty method on how to add an event receiver to a list. Not many people show you how to remove them (Not even some of the Microsoft Press books…) There are 2 ways.. if you have the GUID of your event receiver, instantiate an instance of an SPEventReceiverDefintion object with that guid and then delete it. Else, here’s the long way: (I’m going under the assumption that you’re a good MOSS/WSS programmer and using Features to deploy your event handler…)

public override void FeatureDeactivating(SPFeatureReceiverProperties properties)
{
using (SPWeb web = (SPWeb)properties.Feature.Parent)
{
SPDocumentLibrary paqa= (SPDocumentLibrary)web.Lists["PAQA"];
SPEventReceiverDefinitionCollection erdc = paqa.EventReceivers;
SPEventReceiverDefinition erd = null;bool found = false;
for (int i = 0; i < erdc.Count; ++i)
{
erd = erdc[i];
if (erd.Assembly == asmName && erd.Type == SPEventReceiverType.ItemAdded)
{
found = true;
break;
}
}
if (found)
erd.Delete();
}
}
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