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(German version maybe coming later / deutsche Version folgt eventuell später) This post is a continuation of my intro to BizTalk Workflow Services . When orchestrating anything or in more simple words, when implementing an algorithm, we typically need a type of flow control. What is the order of the...
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Andreas Erben's posts
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Andreas Erben
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08-09-2008
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Filed under: .NET 3.0, BizTalk, BizTalk Server, .NET 3.5, BPM, Workflow, WF, Cloud Computing, Cloud, BizTalk Services, Cloud Services
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(German version maybe coming later / deutsche Version folgt eventuell später) http://workflow.biztalk.net now offers a CTP of BizTalk Workflow Services. Let's look at what that means. First you should download the latest version of the SDK. Right now this is the file " BizTalk Services...
Posted to
Andreas Erben's posts
by
Andreas Erben
on
08-05-2008
Filed under:
Filed under: .NET 3.0, VS 2005, Visual Studio 2005, BizTalk, BizTalk Server, .NET, Visual Studio 2008, VS 2008, .NET 3.5, BPM, Workflow, WF, Windows Workflow Foundation, SOA, Cloud Computing, Cloud, BizTalk Services, Cloud Services
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When the manually schedule service us used to schedule workflows you have to be aware of: 1. The workflows is started by following statement: manualScheduler.RunWorkflow(wfInstID); 2. When this statement is executed the workflow is running on the thread which has executed the code above as long the workflow...
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If you want to implement an EventHandling scenario, which is more powerfull than out of the box WF-activities this post may helpfull. You may asking yourself, what kind of advanced scenario this could be? Here are some examples: 1. You want to handle an event within Initialization State and not...
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During implementation of "correlation" (using of context manager etc.) in Workflow Service based on *HttpContextBindig , you may get following error while obtaining the context manager instance: " Cannot obtain fields or call methods on the instance of type 'System.ServiceModel.Channels...
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WF Services introduce few new bindings which slightly change the communication protocol between client and service. This post contains one full message exchange example of the statemachine-workflow which provide two operations: GetData and OnNewMessage . The first operation starts the workflow and the...
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Sometimes you may expect that some parts of the workflow takes long time for execution. This is in workflow context mostly common requirement. Unfortunately longer execution statistically increases the error probability in the workflow itself. To solve this problem I would personally design th workflow...
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While trying to implement some test I moved my WorkflowService (the Workflow hosted as Wcf service) from original project to some other one. After that I could have noticed following error: " No contract found in the workflow ". This error occurs if the workflow implementation is contained...
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While implementing Windows Workflow (WF) applications, there are situation when the workflow has to be scheduled manually. By default one workflow is scheduled by using DefaultWorkflowSchedulerService . Additionally to default scheduler, Windows Workflow provides the ManualWorkflowSchedulerService ....
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While starting the workflow you may encounter following error: "Test method TestProject.WorkflowTest.TestWorkflow threw exception: System.InvalidOperationException: WorkflowRuntime container does not contain ExternalDataExchangeService." This error is caused by the code similar to this one...
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While hosting the BPEL type of the workflow in Workflow Foundation you may get following error: "The requested service System.Workflow.ComponentModel.Compiler.ITypeProvider is missing." If you would like to understand why this error accures, you should take a look on this post . If you just...
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Sometimes you will have a situation where you want to compile (and execute) a workflow at runtime. This is relatively easy when your workflow is pure .XOML and derives from classes available through the TypeProvider that implement everything it needs. When you want to test an activity that implements...
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Usually I agree with Damir and his excellent posts. However, I cannot agree 100% with his post about " WF - Unit Testing: How to create Activity Type from XOML? ". When not reading it carefully, it can be misunderstood in a way that the actual "Activity Type" is created from XOML...