This documentation is archived and is not being maintained.

InstanceDescriptor Class

Provides the information necessary to create an instance of an object. This class cannot be inherited.

Namespace:  System.ComponentModel.Design.Serialization
Assembly:  System (in System.dll)

public final class InstanceDescriptor


The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: SharedState. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

InstanceDescriptor can store information that describes an instance of an object. This information can be used to create an instance of the object.

Some custom serializers use InstanceDescriptor to represent serializable objects. Several methods of a TypeDescriptor use InstanceDescriptor to represent or instantiate objects.

An InstanceDescriptor provides the following members:

  • A MemberInfo property that describes this object.

  • An Arguments property that consists of the constructor arguments that can be used to instantiate this object.

  • A Boolean IsComplete property that indicates whether the object is completely represented by the current information.

  • An Invoke method that can be used to create an instance of the represented object.

The following code example illustrates how to use a type converter that participates in code generation through the use of instance descriptors.

No code example is currently available or this language may not be supported.


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0