Matt's Musings - All Comments

re: Using data driven workflow activities and repeated correlation

matt-milner — Sat, 11 Oct 2008 05:49:18 GMT

I can't speak to your specific solution as I haven't seen it, but in my sample, the workflow completes because I have conditions set on the composite activities (replicator and/or CAG) that cause the activity to complete when certain conditions are met. Since the UI (messagebox) is created and THEN the condition is met, the user responds and the workflow is no longer available, it has completed. I'm not sure how your flow is getting stuck since it sounds like it is not terminating or completing. Feel free to send a simple repro and I'll take a look at it. You can use the Contact link to send me mail.

re: Using data driven workflow activities and repeated correlation

philippe — Fri, 10 Oct 2008 06:59:46 GMT

Hello,

I don't see why the workflow terminates while the HEEA is still waiting for an event (fired at thread termination).

In my workflow, the activities coming after the replicator are even not executed.

The schedulerService.RunWorkflow returns and the WorkflowTerminated or WorkflowCompleted events are not fired.

Please help.

re: Using data driven workflow activities and repeated correlation

matt-milner — Thu, 09 Oct 2008 16:01:49 GMT

Philipe,

The issue is that the GetWorkflow method throws an exception instead of returning null, which I should have caught when I wrote that. Two options off the top of my head:

1) Use the GetLoadedWorkflows method to see if the runtime has the workflow.

2) Wrap the Getworkflow call in a try/catch and return false if the exception is thrown.

Matt

re: Double-clicking to open Visual Studio solution files on Vista

Alexandre CB — Thu, 09 Oct 2008 15:08:23 GMT

Thank you "Sajeev Prasad / Arun Arcot", you solved my problem.

re: Using data driven workflow activities and repeated correlation

philippe — Thu, 09 Oct 2008 07:48:09 GMT

Thanks.

It works better but the WorkflowCompleted event is raised before the real end of the workflow.

I still have a MessageBox on screen and the worlflow terminates and then crashes in WorkflowCanAcceptVotes.

I noticed the same behaviour in my own implementation.

Any idea.

re: Screencast: Your first state machine workflow

matt-milner — Tue, 07 Oct 2008 22:00:06 GMT

We are working with Microsoft to get the sample code hosted for these screencasts. We will announce on our blogs when that happens and provide details on how you can access the samples.

re: Using data driven workflow activities and repeated correlation

matt-milner — Tue, 07 Oct 2008 21:48:52 GMT

You have to make sure votingArgs is a public field or property. This changed during beta cycles so the sample may be a bit out of date.

re: Using data driven workflow activities and repeated correlation

philippe — Tue, 07 Oct 2008 20:05:19 GMT

Hello,

I get the following error with VS2005.

Please help.

Activity 'UserApprove' validation failed: Path 'votingArgs' used to specify member for 'VotingActivity' is invalid. Path needs to point to valid member.

Activity 'UserReject' validation failed: Path 'votingArgs' used to specify member for 'VotingActivity' is invalid. Path needs to point to valid member.

Screencast: Using persistence services in Windows WF

Matt's Musings — Wed, 01 Oct 2008 19:36:24 GMT

My latest screencast in the Windows WF developer screencast series has been loaded up as of this morning

Screencast: Using persistence services in Windows WF

Matt's Musings — Wed, 01 Oct 2008 19:36:23 GMT

My latest screencast in the Windows WF developer screencast series has been loaded up as of this morning

Screencast: Using persistence services in Windows WF

Matt's Musings — Wed, 01 Oct 2008 19:36:22 GMT

My latest screencast in the Windows WF developer screencast series has been loaded up as of this morning

re: Screencast: Your first state machine workflow

Ryan — Wed, 24 Sep 2008 21:12:26 GMT

Are you sharing the code that you screencast anywhere? That would be nice to try and run through ourselves.

re: Double-clicking to open Visual Studio solution files on Vista

evan k. stone — Wed, 24 Sep 2008 17:51:50 GMT

i was having the same problem in XP, and re-mapping to VS2008 worked just fine. thanks for the tip!

re: MSDN Magazine article on building custom activities for workflows

Shane — Fri, 01 Aug 2008 10:54:39 GMT

Thanks for posting - just found it over at MSDN.

re: Understanding the FactHandle in a FactRetriever

Glenn Kees — Thu, 31 Jul 2008 16:42:21 GMT

Awesome! This is the only place I have come across such info...

Thanks,

Glenn