BasicDesignerLoader Class

Provides an implementation of the IDesignerLoaderService interface.

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

public abstract class BasicDesignerLoader : DesignerLoader, IDesignerLoaderService
public abstract class BasicDesignerLoader extends DesignerLoader implements IDesignerLoaderService
public abstract class BasicDesignerLoader extends DesignerLoader implements IDesignerLoaderService
Not applicable.

A BasicDesignerLoader is a complete implementation of a designer loader without anything relating to a persistence format. A BasicDesignerLoader does not dictate either a text or binary persistence, but it does support the following features:

  • Multiple load dependencies.

  • Tracking changes within the designer.

  • Deferred idle-time reloading.

A BasicDesignerLoader adds two kinds of services to the designer host’s service container: replaceable services and irreplaceable services. You can replace a replaceable service by changing the value of the protected LoaderHost property. You cannot replace irreplaceable services because their implementations depend on each other.

The following table describes the services that are provided by default.

Default Service



Allows objects to request that the designer reload itself when it is idle. This is a replaceable service.


Used to serialize and deserialize objects. The serialization manager is added as a service so objects that need to perform serialization can utilize any serialization providers that were added to the serialization manager. This is an irreplaceable service.

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 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0