Interop Class (System.Activities.Statements)

Switch View :
Classic
Lightweight
ScriptFree
.NET Framework Class Library
Interop Class

An activity that manages the execution of an System.Workflow.ComponentModel.Activity within a workflow.

Inheritance Hierarchy
System.Object
  System.Activities.Activity
    System.Activities.NativeActivity
      System.Activities.Statements.Interop

Namespace:  System.Activities.Statements
Assembly:  System.Workflow.Runtime (in System.Workflow.Runtime.dll)
Syntax
Visual Basic
Public NotInheritable Class Interop _
	Inherits NativeActivity _
	Implements ICustomTypeDescriptor
C#
public sealed class Interop : NativeActivity, 
	ICustomTypeDescriptor
Visual C++
public ref class Interop sealed : public NativeActivity, 
	ICustomTypeDescriptor
F#
[<Sealed>]
type Interop =  
    class
        inherit NativeActivity
        interface ICustomTypeDescriptor
    end

The Interop type exposes the following members.

Constructors
  Name Description
Public method Interop Creates a new instance of the Interop class.
Top
Properties
  Name Description
Public property ActivityMetaProperties The collection of name-value pairs that corresponds to the metadata of the System.Workflow.ComponentModel.Activity, such as an activity’s Name property, or a WhileActivity activity’s Condition() property.
Public property ActivityProperties Gets the collection of name-value pairs that corresponds to the input and output properties of the System.Workflow.ComponentModel.Activity.
Public property ActivityType Gets or sets the type of the activity contained by the Interop activity.
Protected property CacheId Gets the identifier of the cache that is unique within the scope of the workflow definition. (Inherited from Activity.)
Protected property CanInduceIdle Gets or sets a value that indicates whether the activity can cause the workflow to become idle. (Inherited from NativeActivity.)
Protected property Constraints Gets a collection of Constraint activities that can be configured to provide validation for the Activity. (Inherited from Activity.)
Public property DisplayName Gets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking. (Inherited from Activity.)
Public property Id Gets an identifier that is unique in the scope of the workflow definition. (Inherited from Activity.)
Protected property Implementation The execution logic of the activity. (Inherited from NativeActivity.)
Top
Methods
  Name Description
Protected method Abort When implemented in a derived class, takes actions in response to the activity being aborted. (Inherited from NativeActivity.)
Protected method CacheMetadata(ActivityMetadata) Not implemented. Use the CacheMetadata(NativeActivityMetadata) method instead. (Inherited from NativeActivity.)
Protected method CacheMetadata(NativeActivityMetadata) Creates and validates a description of the activity’s arguments, variables, child activities, and activity delegates. (Inherited from NativeActivity.)
Protected method Cancel When implemented in a derived class, runs logic to cause graceful early completion of the activity. (Inherited from NativeActivity.)
Public method Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected method Execute When implemented in a derived class, runs the activity’s execution logic. (Inherited from NativeActivity.)
Protected method Finalize Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public method GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public method ShouldSerializeDisplayName Indicates whether the DisplayName property should be serialized. (Inherited from Activity.)
Public method ToString Returns a String that contains the Id and DisplayName of the Activity. (Inherited from Activity.)
Top
Explicit Interface Implementations
  Name Description
Explicit interface implemetation Private method ICustomTypeDescriptor.GetAttributes Returns the collection of attributes for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetClassName Returns the name of the class of the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetComponentName Returns the name of the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetConverter Returns the associated type converter for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetDefaultEvent Returns the default event for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetDefaultProperty Returns the default property for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetEditor Returns the editor for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetEvents() Returns the collection of events for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetEvents(Attribute[]) Returns the collection of events for the contained System.Workflow.ComponentModel.Activity using the specified array of attributes as a filter.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetProperties() Returns the collection of properties for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetProperties(Attribute[]) Returns the collection of properties for the contained System.Workflow.ComponentModel.Activity using a specified array of attributes as a filter.
Explicit interface implemetation Private method ICustomTypeDescriptor.GetPropertyOwner Returns the owner of the specified property descriptor or the Interop activity itself if the property descriptor has no owner.
Top
Remarks
Note Note

The Interop activity will not appear in the workflow designer toolbox unless the workflow's project has its Target Framework setting set to .Net Framework 4.
Caution note Caution

Due to limitations in the interface types that the Interop activity can support, HandleExternalEventActivity and CallExternalMethodActivity cannot be used directly, but derivative activities created using the Workflow Communication Activity tool (WCA.exe) can be used. See Windows Workflow Foundation Tools for details.
Version Information

.NET Framework

Supported in: 4
Platforms

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.
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.
See Also

Reference

System.Activities.Statements Namespace