CommandActivity.Subscribe Method

Requests that the CommandActivity creates a queue for its event. Because commands do not exist standalone without CommandsActivity in Microsoft Unified Communications Managed API, this method is only called by the CommandsActivity.

Namespace:  Microsoft.Rtc.Workflow.Activities
Assembly:  Microsoft.Rtc.Workflow (in Microsoft.Rtc.Workflow.dll)

Syntax

'Declaration
Protected Sub Subscribe ( _
    parentContext As ActivityExecutionContext, _
    parentEventHandler As IActivityEventListener(Of QueueEventArgs) _
)

protected void Subscribe(
    ActivityExecutionContext parentContext,
    IActivityEventListener<QueueEventArgs> parentEventHandler
)

protected:
void Subscribe(
    ActivityExecutionContext^ parentContext, 
    IActivityEventListener<QueueEventArgs^>^ parentEventHandler
)

Parameters

• parentContext
  Type: System.Workflow.ComponentModel.ActivityExecutionContext

• parentEventHandler
  Type: System.Workflow.ComponentModel.IActivityEventListener<QueueEventArgs>

Exceptions

Exception	Condition
System.ArgumentNullException	Thrown if argument is null.

See Also

CommandActivity Class

Microsoft.Rtc.Workflow.Activities Namespace