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Interop Class

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

Namespace:  System.Activities.Statements
Assembly:  System.Workflow.Runtime (in System.Workflow.Runtime.dll)

public sealed class Interop : NativeActivity, 
	ICustomTypeDescriptor

The Interop type exposes the following members.

  NameDescription
Public methodInteropCreates a new instance of the Interop class.
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  NameDescription
Public propertyActivityMetaPropertiesThe 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 propertyActivityPropertiesGets the collection of name-value pairs that corresponds to the input and output properties of the System.Workflow.ComponentModel.Activity.
Public propertyActivityTypeGets or sets the type of the activity contained by the Interop activity.
Protected propertyCacheIdGets the identifier of the cache that is unique within the scope of the workflow definition. (Inherited from Activity.)
Protected propertyCanInduceIdleGets or sets a value that indicates whether the activity can cause the workflow to become idle. (Inherited from NativeActivity.)
Protected propertyConstraintsGets a collection of Constraint activities that can be configured to provide validation for the Activity. (Inherited from Activity.)
Public propertyDisplayNameGets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking. (Inherited from Activity.)
Public propertyIdGets an identifier that is unique in the scope of the workflow definition. (Inherited from Activity.)
Protected propertyImplementationThe execution logic of the activity. (Inherited from NativeActivity.)
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  NameDescription
Protected methodAbortWhen implemented in a derived class, takes actions in response to the activity being aborted. (Inherited from NativeActivity.)
Protected methodCacheMetadata(ActivityMetadata)Not implemented. Use the CacheMetadata(NativeActivityMetadata) method instead. (Inherited from NativeActivity.)
Protected methodCacheMetadata(NativeActivityMetadata)Creates and validates a description of the activity’s arguments, variables, child activities, and activity delegates. (Inherited from NativeActivity.)
Protected methodCancelWhen implemented in a derived class, runs logic to cause graceful early completion of the activity. (Inherited from NativeActivity.)
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodExecuteWhen implemented in a derived class, runs the activity’s execution logic. (Inherited from NativeActivity.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodShouldSerializeDisplayNameIndicates whether the DisplayName property should be serialized. (Inherited from Activity.)
Public methodToStringReturns a String that contains the Id and DisplayName of the Activity. (Inherited from Activity.)
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  NameDescription
Explicit interface implemetationPrivate methodICustomTypeDescriptor.GetAttributesReturns the collection of attributes for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetationPrivate methodICustomTypeDescriptor.GetClassNameReturns the name of the class of the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetationPrivate methodICustomTypeDescriptor.GetComponentNameReturns the name of the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetationPrivate methodICustomTypeDescriptor.GetConverterReturns the associated type converter for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetationPrivate methodICustomTypeDescriptor.GetDefaultEventReturns the default event for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetationPrivate methodICustomTypeDescriptor.GetDefaultPropertyReturns the default property for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetationPrivate methodICustomTypeDescriptor.GetEditorReturns the editor for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetationPrivate methodICustomTypeDescriptor.GetEvents()Returns the collection of events for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetationPrivate methodICustomTypeDescriptor.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 implemetationPrivate methodICustomTypeDescriptor.GetProperties()Returns the collection of properties for the contained System.Workflow.ComponentModel.Activity.
Explicit interface implemetationPrivate methodICustomTypeDescriptor.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 implemetationPrivate methodICustomTypeDescriptor.GetPropertyOwnerReturns the owner of the specified property descriptor or the Interop activity itself if the property descriptor has no owner.
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NoteNote

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 noteCaution

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.

.NET Framework

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.

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

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