SPAuditEventType
AuditMaskChange = 14
CheckIn = 2
CheckOut = 1
ChildDelete = 7
ChildMove = 16
Copy = 12
Custom = 100
Delete = 4
EventsDeleted = 50
FileFragmentWrite = 17
Move = 13
ProfileChange = 6
SchemaChange = 8
Search = 15
SecGroupCreate = 30
SecGroupDelete = 31
SecGroupMemberAdd = 32
SecGroupMemberDel = 33
SecRoleBindInherit = 39
SecRoleBindUpdate = 38
SecRoleDefCreate = 34
SecRoleDefDelete = 35
SecRoleDefModify = 36
Undelete = 10
Update = 5
View = 3
Workflow = 11