This type represents the different types of filesystem events you can use a FileSystemWatcher to look for. NotifyFilters allows you to indicate what kind of changes a FileSystemWatcher should respond to. public enum NotifyFilters { FileName = 0x00000001 , DirectoryName = 0x00000002 , Attributes = 0x00000004 , Size = 0x00000008 , LastWrite = 0x00000010 , LastAccess = 0x00000020 , CreationTime = 0x00000040 , Security = 0x00000100 } HierarchySystem.Object System.ValueType System.Enum(System.IComparable, System.IFormattable , System.IConvertible) NotifyFilters Returned ByFileSystemWatcher.NotifyFilter Passed ToFileSystemWatcher.NotifyFilter |