ExtensionAttribute Class

Indicates that a method is an extension method, or that a class or assembly contains extension methods.

[AttributeUsageAttribute]
[ExternalAttribute]
public sealed class ExtensionAttribute : Attribute

<AttributeUsageAttribute> _
<ExternalAttribute> _
Public NotInheritable Class ExtensionAttribute _
	Inherits Attribute

[AttributeUsageAttribute]
[ExternalAttribute]
public ref class ExtensionAttribute sealed : public Attribute