GetCustomAttribute Method (ParameterInfo, Type, Boolean)

Attribute.GetCustomAttribute Method (ParameterInfo, Type, Boolean)

Retrieves a custom attribute applied to a method parameter. Parameters specify the method parameter, the type of the custom attribute to search for, and whether to search ancestors of the method parameter.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public static Attribute GetCustomAttribute(
	ParameterInfo element,
	Type attributeType,
	bool inherit


Type: System.Reflection.ParameterInfo
An object derived from the ParameterInfo class that describes a parameter of a member of a class.
Type: System.Type
The type, or a base type, of the custom attribute to search for.
Type: System.Boolean
If true, specifies to also search the ancestors of element for custom attributes.

Return Value

Type: System.Attribute
A reference to the single custom attribute of type attributeType that is applied to element, or null if there is no such attribute.


element or attributeType is null.


attributeType is not derived from Attribute.


More than one of the requested attributes was found.


A custom attribute type cannot be loaded.

If element represents a parameter in a method of a derived type, the return value includes the inheritable custom attributes applied to the same parameter in the overridden base methods.


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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