(WF4,VS) WorkflowDesigner Extensions in Visual Studio 2012

(Intro: Sometimes as part of testing I go to silly lengths to try to point out what I think is going to be a bug in a piece of code I have seen. And frequently when I do this, I am basically wrong, for any of various reasons – it’s a bug according to some…

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Platform Update 3 Beta

G’day all, just a little snippet of news to share – remember .Net 4 Platform Update 1? The update with State Machine? Well, we are almost up to Platform Update 3 now, and the beta version is available for download. Note that this is not the final PU3, this is just a beta version of…

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(WF4) They have AsyncCodeActivity, why not AsyncNativeActivity?

AsyncCodeActivity is a nice class for wrapping calls to asynchronous APIs and turning them into activities that can run super-efficiently. But! There are a few limitations to being a subclass of AsyncCodeActivity when compared to NativeActivity. Such as? Here’s a rough list: you can’t have any child activities you can’t create or access Execution Properties (sometimes useful…

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(WF4) Workflow 4.0 Hosting Extensions

[Update:Dear Readers,To those of you who found this post interesting, but still a little too vague on how exactly you can use extensions for workflow-host communications, how this ties in with bookmarking, or what might be involved in implementing your own custom Send/Receive semantics in a workflow activity, you may enjoy the sequel post ‘Workflow 4.0…

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