Recently David K contacted me through my blog and shared with me a solution that he came up with for a particular problem that he was able to solve using IWorkflowInstanceExtension and said it would be great if I could do an endpoint.tv episode about...

Suppose you want to unit test a workflow that has some external dependency like a database, web service, file or some other thing that makes testing inconvenient. The need to eliminate external dependencies when testing has led to a world of mocking frameworks...

Testing WorkflowServices is harder because you have to host the service somehow. There are several options you can use. You can host the service in IIS/AppFabric by configuring your project to use IIS You can try to insure that the local ASP...

In my previous post I showed you how to test simple activities using WorkflowInvoker. While this is a great way to test simple activities it does have limitations. The MSDN documentation states WorkflowInvoker does not allow instance control such...

Recently I asked you to vote on topics you want to see on endpoint.tv . Coming in at #3 was this question on how to Unit Test WF4 Workflows. Because Workflows range from very simple activities to long and complex multi-step processes this can be a...

Today on endpoint.tv I showed how to create a workflow service that can do background work on a scheduled basis (The sample code is posted here ). In the example I showed a web UI that allows you to start the job by clicking on a submit button. Somebody...