Attribute.GetCustomAttribute Method (ParameterInfo, Type, Boolean)
[ 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, the type of the custom attribute to search for, and whether to search ancestors of the method parameter.
Assembly: mscorlib (in mscorlib.dll)
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.AttributeA reference to the single custom attribute of type attributeType that is applied to element, or null if there is no such attribute.
| 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. |