• Article

EnumBuilder.IsDefined Method

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

Checks if the specified custom attribute type is defined.

Namespace:  System.Reflection.Emit
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
    The Type object to which the custom attributes are applied.
  • inherit
    Type: System.Boolean
    Specifies whether to search this member's inheritance chain to find the attributes.

Return Value

Type: System.Boolean
true if one or more instance of attributeType is defined on this member; otherwise, false.

Implements

ICustomAttributeProvider.IsDefined(Type, Boolean)

Exceptions

Exception Condition
NotSupportedException

This method is not currently supported in types that are not complete.

Remarks

As a workaround, to check if a custom attribute is defined for a finished type, retrieve the type using GetType and call GetCustomAttributes on the returned Type.

Version Information

Silverlight

Supported in: 5, 4, 3

Platforms

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