CustomAttributeExtensions::GetCustomAttribute Method (ParameterInfo^, Type^, Boolean)
Retrieves a custom attribute of a specified type that is applied to a specified parameter, and optionally inspects the ancestors of that parameter.
Assembly: mscorlib (in mscorlib.dll)
public: [ExtensionAttribute] static Attribute^ GetCustomAttribute( ParameterInfo^ element, Type^ attributeType, bool inherit )
Parameters
- element
-
Type:
System.Reflection::ParameterInfo^
The parameter to inspect.
- attributeType
-
Type:
System::Type^
The type of attribute to search for.
- inherit
-
Type:
System::Boolean
true to inspect the ancestors of element; otherwise, false.
Return Value
Type: System::Attribute^A custom attribute matching attributeType, or null if no such attribute is found.
| 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. |
Use the GetCustomAttributes extension method if you expect more than one value to be returned, or AmbiguousMatchException will be thrown.
Available since 8
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1