workflow-foundation-4

I am trying to host a long running workflow service on Azure but I am having problems with correlation. I have got the timeToUnload and the timeToPersist set to 0 and I have ticked the "persist before send" in the worklow - this is not a problem with persistence, it is to do with how instance keys are calculated. When one web server starts a workflow and another then tries to take another action on the workflow, it fails with System.ServiceModel.FaultException: The execution of an InstancePersistenceCommand was interrupted because the instance key '12e0b449-7a71-812d-977a-ab89864a272f' was not

I don't have much explanation that the tittle himself, lol. But, what I really want to do is load de WorkflowDesigner on an Winform ElementHost Control. I try doing this: Host WorkflowDesigner in a WPF Application , but it doesn't work. Thanks! Solved! private void Form1_Load(object sender, EventArgs e) { new DesignerMetadata().Register(); //Missing Line des = new WorkflowDesigner(); des.Load(mFileName); elementHost1.Child = des.View; } Only was needed to add the missing line " new DesignerMetadata().Register(); " Note: elementHost1 is a WinForm ElementHost Control, direct from the toolbox! ;)

I have created a Native activity and I need to call another activity on a Bookmark Resume call. My First Activity name is "Apply" and Second activity is called "Approve". In Apply, i have created a property as below. public Approve Approve { get; set; } and then I have registered the CacheMetadata as below. metadata.AddImplementationChild(this.Approve); base.CacheMetadata(metadata); And then "OnResumeBookmark" method, Im scheduling it. this.Approve = new Approve(); this.Approve.ID = context.GetValue(this.ID); OutArgument<string> res = this.Approve.Result; context.ScheduleActivity(this.Approve)

I am trying to create a new build definition using TFS 2013 API. The process template that I have to refer contains several custom activities and parameters. While creating the Build Definition, some of the Property value needs to be updated dynamically. So I tried to Deserialize the process parameters using below code: IDictionary<string, object> processParams = WorkflowHelpers.DeserializeProcessParameters(defaultTemplate.Parameters); This code always throwing below exception: An unhandled exception of type 'System.Xaml.XamlObjectWriterException' occurred in System.Xaml.dll Additional

I created a sample Workflow Service. I am having a problem calling it in unordered. All the receive activity below having same correlation. When the workflow starts on GetData() and the client tries to call 4th or 3rd receive activity it results to timeout. I was expecting to throws back a Operation 'Fourth|{ http://tempuri.org/ }IService' on service instance with identifier '04e7f5aa-5e01-47ac-8a6e-b20492c5ac19' cannot be performed at this time. Please ensure that the operations are performed in the correct order and that the binding in use provides ordered delivery guarantees. But when I

I currently have a workflow which is triggered when a certain decimal field is changed. Is it possible to get the difference between the old and new values via a workflow? Finally had the time to test this, and it is perfectly possible to retrieve the pre values in a workflow using a workflow assembly. Here's what I did: I created a workflow on Contact, with a trigger on LastName. The workflow contains a reference to the field lastname, and a custom workflow assembly . I opened a contact and changed it's lastname from 'Foo' to 'Bar' Code of the custom workflow assembly: protected override void