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ServiceManager.Publish Method (Type, PublishServiceCallback)

Publishes the specified service type, but does not declare an instance. When the service is requested, the Publish service callback will be invoked to create the instance. The callback is invoked only once. After that, the instance it returned is cached.

Namespace:  System.Activities.Presentation
Assembly:  System.Activities.Presentation (in System.Activities.Presentation.dll)

public abstract void Publish(
	Type serviceType,
	PublishServiceCallback callback


Type: System.Type
The type of service to publish.
Type: System.Activities.Presentation.PublishServiceCallback
A callback that will be invoked when an instance of the service is needed.


serviceType or callback is null.


serviceType has already been published.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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