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// This enumeration defines the possible targets of an attribute.

public enum AttributeTargets

{

All, Assembly, Class, Constructor,

Delegate, Enum, Event, Field,

Interface, Method, Module, Parameter,

Property, ReturnValue, Struct

}

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T Y P E   R E F L E C T I O N, L AT E   B I N D I N G, A N D  AT T R I B U T E - B A S E D   P R O G R A M M I N G

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8849CH16.qxd  10/9/07  4:27 PM  Page 548

---

Furthermore, [AttributeUsage] also allows you to optionally set a named property

(AllowMultiple) that specifies whether the attribute can be applied more than once on the same

item. As well, [AttributeUsage] allows you to establish whether the attribute should be inherited

by derived classes using the Inherited named property.

To establish that the [VehicleDescription] attribute can be applied only once on a class or

structure (and the value is not inherited by derived types), you can update the

VehicleDescriptionAttribute definition as follows: