Accessing WorkflowApplication by ID

Question

I don't have any experience with WF, but a lot of experience in .NET back end/front end overall. 

.NET 4 / C# project.

What I am trying to achieve: 

1. A simple Workflow which can be started and stopped through a service. 

So far I have a public method "Start" and a public method: 

                   
MyWorkflow wf = new MyWorkflow ();

public void StartService()
        {
            _wfApp = new WorkflowApplication(wf);
            _wfApp.SynchronizationContext = SynchronizationContext.Current;
            _wfApp.Run();

        }

What needs to be done is that I persist my _wfApp.Id and then be able to stop this particular instance from my public void Stop() method. I did read on persisting workflows etc, but I am having a hard time finding a simple example where I would be able to get my workflow by an Id. There should be some sort of a collection of currently running worlflows. I did find something for .NET 3.5,  but not for 4.0 . 

Basically the QUESTION is: How do I "find" and access a particular workflow application using its ID ?

Thanks, 

Answer 1

you can use "_wfApp.Id" to get the id of your current WorkflowApplication and after that you can load that instance to terminate it.

Answer 2

Hi,

If you want to get the instance id of a running workflow, it requires writing code, you can refer to the following sample:

Get WorkflowInstanceId

http://msdn.microsoft.com/en-us/library/ee943758.aspx

In addition, we can control the remote workflow service instance by using workflow control endpoint.

http://msdn.microsoft.com/en-us/library/ee358723.aspx

---

Leo Tang [MSFT]
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