CallExternalMethodActivity.CorrelationToken Property

public:
 virtual property System::Workflow::Runtime::CorrelationToken ^ CorrelationToken { System::Workflow::Runtime::CorrelationToken ^ get(); void set(System::Workflow::Runtime::CorrelationToken ^ value); };

[System.ComponentModel.TypeConverter(typeof(System.Workflow.Activities.CorrelationTokenTypeConverter))]
public virtual System.Workflow.Runtime.CorrelationToken CorrelationToken { get; set; }

[<System.ComponentModel.TypeConverter(typeof(System.Workflow.Activities.CorrelationTokenTypeConverter))>]
member this.CorrelationToken : System.Workflow.Runtime.CorrelationToken with get, set

Public Overridable Property CorrelationToken As CorrelationToken

Property Value

The correlation token for the external method.

Attributes

TypeConverterAttribute

Examples

The following sample shows how to access the CorrelationToken property of a CallExternalMethodActivity object. This sample is from the Correlated Local Service SDK sample, from the CorrelatedLocalServiceWorkflow.designer.cs file. For more information, see Correlated Local Service Sample.

this.createTask2.CorrelationToken = correlationtoken1;

Me.createTask2.CorrelationToken = correlationtoken1

Remarks

This property defines which specific CallExternalMethodActivity activity a given external method call comes from. This value can then be used in the payload of a local communication service event to direct that event to the correct HandleExternalEventActivity activity.

For an example of correlation, see the Correlated Local Service Sample.

Applies to

See also

• Using the CallExternalMethod Activity