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My name is Tom Lake. I previously worked on the Windows Workflow Foundation Activities test team and created these blog posts and samples to help before the official samples were available.
After 8 years working on BizTalk and Windows Workflow Foundation I have decided it is time to work...
Date: 09/17/2008
Are you getting a "The root activity type is invalid" error with the Custom Activity Designer sample?
Several peolple have gotten a "The root activity type is invalid" error when using the Custom...
Date: 12/10/2007
Being able to have a StateMachineWorkflow hold state across multiple different web service calls can...
Date: 01/29/2007
If you have your own custom ActivityCondition you are only going to be able to use it with your...
Date: 10/19/2006
The Switch activity I created is based on the switch statement in C# or the Select Case statements...
Date: 08/30/2006
If you have used a custom type for an activity / workflow property you have probably ran into a few...
Date: 07/17/2006
The InvokeWorkflowActivity that ships with WF requires you to set the type of the target workflow at...
Date: 07/14/2006
When start another process from your workflow you can’t just not return from the Execute method...
Date: 07/14/2006
Sometime you might want to create an input form for your user to set properties on your custom...
Date: 06/05/2006
Sometimes you need to send data to a workflow from the host. To do this you need create an interface...
Date: 06/02/2006
If you work with XAML activation from time to time and like being able to debug your workflow using...
Date: 05/18/2006
When you are working with ASP.NET you may have the need to persistence and / or tracking. I have put...
Date: 05/17/2006
If you want to use XAML activation in ASP.NET you will need to be using Windows Workflow Foundation...
Date: 05/08/2006
You could use a SynchronizationScopeActivity, but this would block execution all together in the...
Date: 05/04/2006
XAML activation is when you use the serialized xoml file to create and run a workflow instance. You...
Date: 05/02/2006
If you are using a state machine workflow in ASP.NET you need to use the ManualSchedulerService....
Date: 05/02/2006
If you have tried to use the FileWatcherActivity in either a WhileActivity or a StateMachineWorkflow...
Date: 05/02/2006