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AsyncCodeActivity<TResult> Class

Manages asynchronous code activity execution, for an activity of a specified type, from start to completion. This is an abstract and generic class.

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

public abstract class AsyncCodeActivity<TResult> : Activity<TResult>

Type Parameters


The type of the asynchronous activity that is handled by this class.

The AsyncCodeActivity<TResult> type exposes the following members.

Protected methodAsyncCodeActivity<TResult>Creates a new instance of the AsyncCodeActivity class.

Protected propertyCacheIdGets the identifier of the cache that is unique within the scope of the workflow definition. (Inherited from Activity.)
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 propertyImplementationGets null or throws an error when there is an attempt to set the value of this property. (Overrides Activity.Implementation.)
Protected propertyImplementationVersionGets or sets the implementation version of the activity. (Overrides Activity.ImplementationVersion.)
Public propertyResultGets or sets the result argument for the Activity<TResult>. (Inherited from Activity<TResult>.)
Public propertyResultTypeWhen implemented in a derived class, gets the type of an activity OutArgument. (Inherited from ActivityWithResult.)

Protected methodBeginExecuteWhen implemented in a derived class and using the specified execution context, callback method, and user state, enqueues an asynchronous activity in a run-time workflow.
Protected methodCacheMetadata(ActivityMetadata)Not implemented. Use CacheMetadata instead. (Overrides Activity.CacheMetadata(ActivityMetadata).)
Protected methodCacheMetadata(CodeActivityMetadata)Serves as a virtual method and converts information obtained by reflection on a cache into arguments for an asynchronous activity.
Protected methodCancelWhen implemented in a derived class and using the specified execution environment information, notifies the workflow runtime that the asynchronous activity operation has been canceled. This method serves as a virtual method.
Protected methodEndExecuteWhen implemented in a derived class and using the specified execution environment information, notifies the workflow runtime that the associated asynchronous activity operation has completed.
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
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 the default hash function. (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.)
Protected methodOnCreateDynamicUpdateMapRaises an event when creating a map for the dynamic update. (Overrides Activity.OnCreateDynamicUpdateMap(UpdateMapMetadata, Activity).)
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.)

.NET Framework

Supported in: 4.5, 4

.NET Framework Client Profile

Supported in: 4

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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