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TypeDelegator.IsDefined Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Indicates whether a custom attribute identified by attributeType is defined.

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

Syntax

'Declaration
Public Overrides Function IsDefined ( _
    attributeType As Type, _
    inherit As Boolean _
) As Boolean

public override bool IsDefined(
    Type attributeType,
    bool inherit
)

Parameters

  • attributeType
    Type: System.Type
    Specifies whether to search this type's inheritance chain to find the attributes.
  • inherit
    Type: System.Boolean
    An array of custom attributes identified by type.

Return Value

Type: System.Boolean
true if a custom attribute identified by attributeType is defined; otherwise, false.

Implements

ICustomAttributeProvider.IsDefined(Type, Boolean)

Exceptions

Exception Condition
ArgumentException

attributeType is nulla null reference (Nothing in Visual Basic).
ReflectionTypeLoadException

The custom attribute type cannot be loaded.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.