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Attribute.GetCustomAttribute Method (ParameterInfo, Type, Boolean)

May 02, 2013

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)

Syntax

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

Parameters

element: Type: System.Reflection.ParameterInfo
An object derived from the ParameterInfo class that describes a parameter of a member of a class.

attributeType: Type: System.Type
The type, or a base type, of the custom attribute to search for.

inherit: 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.

Exceptions

Exception	Condition
ArgumentNullException	element or attributeType is null.
ArgumentException	attributeType is not derived from Attribute.
AmbiguousMatchException	More than one of the requested attributes was found.
TypeLoadException	A custom attribute type cannot be loaded.

Remarks

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.

Version Information

Windows Phone OS

Supported in: 8.0, 7.1, 7.0

Platforms

Windows Phone

Reference

Attribute Class

GetCustomAttribute Overload

System Namespace

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