System Namespace

---

Specifies the application elements on which it is valid to apply an attribute.

This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

Member name	Description
All	Attribute can be applied to any application element.
Assembly	Attribute can be applied to an assembly.
Class	Attribute can be applied to a class.
Constructor	Attribute can be applied to a constructor.
Delegate	Attribute can be applied to a delegate.
Enum	Attribute can be applied to an enumeration.
Event	Attribute can be applied to an event.
Field	Attribute can be applied to a field.
Interface	Attribute can be applied to an interface.
Method	Attribute can be applied to a method.
Module	Attribute can be applied to a module. NOTE: Module refers to a portable executable file (.dll or .exe) and not a Visual Basic standard module.
Parameter	Attribute can be applied to a parameter.
Property	Attribute can be applied to a property.
ReturnValue	Attribute can be applied to a return value.
Struct	Attribute can be applied to a structure; that is, a value type.

AttributeTargets is used as a parameter of AttributeUsageAttribute to specify the kind of element on which it is valid to apply an attribute.

AttributeTargets enumeration values can be combined with a bitwise OR operation to get the preferred combination.

AttributeUsageAttribute

Suggested Reading