Event Receiver Types ID

Here is the list of values of the SPEventReceiverType Enum: 

SPEventReceiverType.ItemAdding = 1
SPEventReceiverType.ItemUpdating = 2
SPEventReceiverType.ItemDeleting = 3
SPEventReceiverType.ItemCheckingIn = 4
SPEventReceiverType.ItemCheckingOut = 5
SPEventReceiverType.ItemUncheckingOut = 6
SPEventReceiverType.ItemAttachmentAdding = 7
SPEventReceiverType.ItemAttachmentDeleting = 8
SPEventReceiverType.ItemFileMoving = 9
SPEventReceiverType.FieldAdding = 101
SPEventReceiverType.FieldUpdating = 102
SPEventReceiverType.FieldDeleting = 103
SPEventReceiverType.SiteDeleting = 201
SPEventReceiverType.WebDeleting = 202
SPEventReceiverType.WebMoving = 203
SPEventReceiverType.ItemAdded = 10001
SPEventReceiverType.ItemUpdated = 10002
SPEventReceiverType.ItemDeleted = 10003
SPEventReceiverType.ItemCheckedIn = 10004
SPEventReceiverType.ItemCheckedOut = 10005
SPEventReceiverType.ItemUncheckedOut = 10006
SPEventReceiverType.ItemAttachmentAdded = 10007
SPEventReceiverType.ItemAttachmentDeleted = 10008
SPEventReceiverType.ItemFileMoved = 10009
SPEventReceiverType.ItemFileConverted = 10010
SPEventReceiverType.FieldAdded = 10101
SPEventReceiverType.FieldUpdated = 10102
SPEventReceiverType.FieldDeleted = 10103
SPEventReceiverType.SiteDeleted = 10201
SPEventReceiverType.WebDeleted = 10202
SPEventReceiverType.WebMoved = 10203
SPEventReceiverType.EmailReceived = 20000
SPEventReceiverType.ContextEvent = 32766
SPEventReceiverType.InvalidReceiver = -1

Taken from: http://wssdevelopment.blogspot.pt/2007/09/event-receiver-values.html

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