windows workflow flowchart and exception handle

Question

Supose that I have a flowchat with a receive, custom code activity and sendreply and the custom code activity throws an exceptions. How can I return to the receive activity?

Any ideas?

Answer 1

You could use the "While" activity as a means of retrying - should there be an exception.

The entire article with more details for this sample is here

Answer 2

I created a custom activity in a similar way of the article with wf4, its something like this:

public sealed class Retry : NativeActivity {

    public Activity Body { get; set; }

    protected override void Execute(NativeActivityContext context) {
        context.ScheduleActivity(Body, OnBodyCompleted, OnBodyFaulted);
    }

    void OnBodyCompleted(NativeActivityContext context, ActivityInstance instance) {

    }

    void OnBodyFaulted(NativeActivityFaultContext faultContext, Exception propagatedException, ActivityInstance propagatedFrom) {
        faultContext.ScheduleActivity(Body, OnBodyCompleted, OnBodyFaulted);
    }
}

Thanks!