This documentation is archived and is not being maintained.
Note: This method is new in the .NET Framework version 2.0.
Provides COM objects with version-independent access to the
This method is not CLS-compliant.
mscorlib (in mscorlib.dll)
bool IsDefined (
boolean IsDefined (
function IsDefined (
attributeType : Type,
inherit : boolean
) : boolean
Type object to which the custom attributes are applied. inherit
Specifies whether to search this member's inheritance chain to find the attributes.
Return Value true
if one or more instance of
is applied to this member; otherwise,
This method is for access to managed classes from unmanaged code, and should not be called from managed code.
MemberInfo.IsDefined method indicates whether one or more instance of attributeType is applied to this member.
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see
System Requirements. .NET Framework
Supported in: 2.0