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CustomAttributeExtensions.GetCustomAttributes Method (ParameterInfo, Type)

.NET Framework 4.5

Retrieves a collection of custom attributes of a specified type that are applied to a specified parameter.

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

public static IEnumerable<Attribute> GetCustomAttributes(
	this ParameterInfo element,
	Type attributeType
)

Parameters

element
Type: System.Reflection.ParameterInfo

The parameter to inspect.

attributeType
Type: System.Type

The type of attribute to search for.

Return Value

Type: System.Collections.Generic.IEnumerable<Attribute>
A collection of the custom attributes that are applied to element and that match attributeType, or an empty collection if no such attributes exist.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type ParameterInfo. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

ExceptionCondition
ArgumentNullException

element or attributeType is null.

ArgumentException

attributeType is not derived from Attribute.

NotSupportedException

element is not a constructor, method, property, event, type, or field.

TypeLoadException

A custom attribute type cannot be loaded.

.NET Framework

Supported in: 4.6, 4.5

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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