Listen Activity

Summary

Makes the workflow wait for any one of several possible events before the activity proceeds.

The ListenActivity is a CompositeActivity, meaning the ListenActivity can contain other activities. The ListenActivity can only contain EventDrivenActivity activities, and must have a minimum of two child activities.

The ListenActivity may contain many branches, and each branch is waiting for a particular event to occur before running. Each branch is event driven and the event that occurs first will run the corresponding branch first. All other branches cancel and stop listening for events.

The ListenActivity cannot be used in state machine workflows.

If you want to lsiten for MSMQ activities you might want to check out the MsmqSendActivity and MsmqReceiveActivity created by TomasRestrepo at http://www.winterdom.com/weblog/2006/10/20/MsmqActivitiesV11Released.aspx