GetCustomAttribute Method (ParameterInfo, Type)

Attribute.GetCustomAttribute Method (ParameterInfo, Type)

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

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

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

public static Attribute GetCustomAttribute(
	ParameterInfo element,
	Type attributeType
)

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.

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.

ExceptionCondition
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.

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.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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