Activity Class (System.Activities)

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.NET Framework Class Library

Activity Class

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

An abstract base class used to create composite activities from pre-existing Activity objects.

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

Syntax

Visual Basic (Declaration)

<ContentPropertyAttribute("Implementation")> _
Public MustInherit Class Activity

Visual Basic (Usage)

Dim instance As Activity

[ContentPropertyAttribute("Implementation")]
public abstract class Activity

Visual C++

[ContentPropertyAttribute(L"Implementation")]
public ref class Activity abstract

[<AbstractClassAttribute>]
[<ContentPropertyAttribute("Implementation")>]
type Activity =  class end

Remarks

Activity is the base class in the activity type hierarchy. All other activity types such as CodeActivity, NativeActivity, AsyncCodeActivity, DynamicActivity, and ActivityWithResult derive from this class.

Inheritance Hierarchy

System..::.Object
  System.Activities..::.Activity
    System.Activities..::.ActivityWithResult
    System.Activities..::.AsyncCodeActivity
    System.Activities..::.CodeActivity
    System.Activities..::.DynamicActivity
    System.Activities..::.NativeActivity
    System.ServiceModel.Activities..::.Receive
    System.ServiceModel.Activities..::.ReceiveReply
    System.ServiceModel.Activities..::.Send
    System.ServiceModel.Activities..::.SendReply

Thread Safety

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

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008, Windows Server 2003

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.

Version Information

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Reference

Activity Members

System.Activities Namespace