CorrelationParameterAttribute Class
Indicates the name of the parameter used for correlation in the methods and events defined on an ExternalDataExchange interface. This class cannot be inherited.
Assembly: System.Workflow.Activities (in System.Workflow.Activities.dll)
| Name | Description | |
|---|---|---|
![]() | CorrelationParameterAttribute(String^) | Initializes a new instance of the CorrelationParameterAttribute where the name of the parameter is used for correlation. |
| Name | Description | |
|---|---|---|
![]() | Equals(Object^) | This API supports the product infrastructure and is not intended to be used directly from your code. Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.) |
![]() | GetHashCode() | Returns the hash code for this instance.(Inherited from Attribute.) |
![]() | GetType() | |
![]() | IsDefaultAttribute() | When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.) |
![]() | Match(Object^) | When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.) |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() ![]() | _Attribute::GetIDsOfNames(Guid%, IntPtr, UInt32, UInt32, IntPtr) | Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.) |
![]() ![]() | _Attribute::GetTypeInfo(UInt32, UInt32, IntPtr) | Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.) |
![]() ![]() | _Attribute::GetTypeInfoCount(UInt32%) | Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.) |
![]() ![]() | _Attribute::Invoke(UInt32, Guid%, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) | Provides access to properties and methods exposed by an object.(Inherited from Attribute.) |
Note |
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This material discusses types and namespaces that are obsolete. For more information, see Deprecated Types in Windows Workflow Foundation 4.5. |
Default setting; can be overridden by the CorrelationAliasAttribute.
The following code example demonstrates how to use a CorrelationParameterAttribute for an EnternalDataExchange interface. This code example is from the CorrelatedLocalService SDK sample. For more information, see Correlated Local Service Sample.
[ExternalDataExchange] [CorrelationParameter("taskId")] public interface ITaskService { [CorrelationInitializer] void CreateTask(string taskId, string assignee, string text); [CorrelationAlias("taskId", "e.Id")] event EventHandler<TaskEventArgs> TaskCompleted; }
Available since 3.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.




