Nested ActivityDesigner execution

Question

I have two custom NativeActivity (Root and Final) with respective ActivityDesigner: enter image description here

In the Root NativeActivity I have:

[ContentProperty("Body")]
[Designer(typeof(RootActivityDesigner))]
public class RootActivity : NativeActivity
{
  public Activity Body { get; set; }

  protected override void Execute(NativeActivityContext context)
  {
    if (this.Body != null)
    {
      context.ScheduleActivity(this.Body);
    }
  }
}

and the Final NativeActivity I have:

[Designer(typeof(FinalActivityDesigner))]
public class FinalActivity : NativeActivity
{
  protected override void Execute(NativeActivityContext context)
  {
    //Do Stuff
  }
}

So when I create a new workflow I drag first RootActivity and than drag other activities inside Root Body and all works fine except FinalActivity that doesn't being execute, so "do stuff" doens't hit.

What is wrong?

I have to call context.ScheduleActivity(this.Body); for FinalActivity too?

Thanks a lot!

score 1 · Answer 1 · answered Mar 14 '12 at 13:11

1

Where is FinalActivity located in the tree. From the designer it looks like it is part of RootActivity but it's source code doesn't contain references FinalActivity anywhere.

answered Mar 14 '12 at 13:11

Maurice

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Is at the bottom of the tree. Here is the designer markup: – Nicola C. Mar 15 '12 at 11:15
It's the activity tree I am interested again. Who is it's parent as that is the one who is responsible for executing it. – Maurice Mar 15 '12 at 12:11

score 0 · Answer 2 · answered Mar 14 '12 at 14:07

I don't know where or what Final is, but you have to schedule it somehow. If RootActivity is the controlling entity, then you might do something like this

public class RootActivity : NativeActivity
{
  public Activity Body { get; set; }
  public Activity Final { get; set; }

  protected override void Execute(NativeActivityContext context)
  {
    if (this.Body != null)
    {
      context.ScheduleActivity(this.Body, OnBodyComplete);
    }
  }
    // callback fired after Body completes execution
    private void OnBodyComplete(NativeActivityContext context, 
                                ActivityInstance completedInstance)
    {
        context.ScheduleActivity(Final);
    }

}

I tried to do this, but still doesn't work. On WF Persistance database I found this error: System.ArgumentNullException -Value cannot be null. Parameter name: activity. I have suspect on line " public Activity Final { get; set; } " How WF associate Final with my FinalActivity ? — Nicola C., Mar 15 '12 at 11:13

Nested ActivityDesigner execution

2 Answers2