This print for content only-size & color not accurate 7" X 9-1/4" / casebound / malloy

Restricting Attribute Usage

By default, custom attributes can be applied to just about any aspect of your code (methods,

classes, properties, and so on). Thus, if it made sense to do so, you could use VehicleDescription

to qualify methods, properties, or fields (among other things):

[VehicleDescription("A very long, slow, but feature-rich auto")]

public class Winnebago

{

[VehicleDescription("My rocking CD player")]

public void PlayMusic(bool On)

{

...

}

}

In some cases, this is exactly the behavior you require. Other times, however, you may want to

build a custom attribute that can be applied only to select code elements. If you wish to constrain

the scope of a custom attribute, you will need to apply the [AttributeUsage] attribute on the

definition of your custom attribute. The [AttributeUsage] attribute allows you to supply any

combination of values (via an OR operation) from the AttributeTargets enumeration: