April 2002
Intermediate to advanced
688 pages
19h 51m
English
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Name
AttributeUsage Attribute
Class
System.AttributeUsageAttribute
Applies to
Class
Description
Defines the program elements to which a custom attribute can be applied. Its use is required when defining a custom attribute.
Constructor
New(validOn)-
validOn(System.AttributeTargets) Indicates the program elements to which a custom attribute can be applied. Possible values are
All,Assembly,Class,Constructor,Delegate,Enum,Event,Field,Interface,Struct,Method,Module,Parameter,Property, andReturnValue.
Properties
- AllowMultiple (Boolean)
Indicates whether the attribute can be used more than once on a single program element. Its default value is
False.- Inherited (Boolean)
Indicates whether attribute is automatically inherited by derived classes and overridden members. Its default value is
True.- ValidOn (
AttributeTargetsenumeration) Read-only. Indicates the program elements to which the attribute can be applied. Its value is set by the required
validonparameter of the class constructor.
Example
See Section 8.2 in Chapter 8 for more details and an example.
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