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Search found 44 results on 2 pages for 'wf4'.

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• How can I use log4net in WF4?

  - by Dmitri Nesteruk

  I've created a simple WF4 console app and set up log4net identically to my other apps. However, when I fire up the console and use the ILog object inside WF4 (I actually pass it into the workflow), no information is presented using my ColoredConsoleAppender. What am I doing wrong?

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• WF4 – It has suddenly got interesting

  - by MarkPearl

  I was at Teched two years ago when one of the Microsoft leads said there were three new area’s that we needed to pay attention to for development, namely: WPF WCF WF At the time I was just getting back into development work and had a look at WPF and immediately was sold on the approach. While I haven’t been to involved with WCF…

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• How to hook up WF4 WorkflowRuntime events when using a XAMLX service

  - by Joel D'Souza

  I'm currently using a BehaviorExtensionElement to load a ServiceBehavior where the ApplyDispatchBehavior method is set up as: public void ApplyDispatchBehavior(ServiceDescription serviceDescription, System.ServiceModel.ServiceHostBase serviceHostBase) { WorkflowServiceHost host = serviceHostBase as WorkflowServiceHost; …

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• "type not defined" exception with WF4 RC

  - by avi1234

  Hi, I`m gettin the following exception while invoking my workflow (dynamically): The following errors were encountered while processing the workflow tree: 'DynamicActivity': The private implementation of activity '1: DynamicActivity' has the following validation error: Compiler error(s) encountered processing expression…

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• .NET WF4: Should it be in the middle of everything?

  - by stimpy77

  I am aware that WF4 (Windows Workflow 4.0, part of .NET 4.0) is a significant rework and redesign of WF3, where much of what made WF3 a poor technology choice has been cleaned up in WF4. For example, as far as I can tell, WF4 (Windows Workflow 4.0) activities are more or less testable with [TestMethod] and mocking. This among other…

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• Dynamic Send Activity in WF4

  This article describes a design, implementation and usage of the custom Dynamic Send Activity in the .Net WF4 Technology.

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• Is there any standalone application which would export WF4 designer functionality?

  - by Sergej Andrejev

  I read that it is possible to host WF4 designer in standalone application outside Visual Studio 2010, in fact I tried it too. But main problem with it is missing intelisence. Therefore the question: Does anyone know about whether there are open source (or not OS) projects which add this missing functionality to standalone WF4…

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• Using WF4 WorkflowInvoker

  This article describes a design, implementation and usage of the custom service operation invoker for invoking a xaml workflow. It is based on the upcoming Microsoft .NET 4 Technology.

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• WF4 Custom activities for message mediation

  This article describes a design, implementation and usage of the custom message mediation activities for xaml workflow. It is based on the upcoming Microsoft .NET 4 Technology.

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• Windows Workflow Foundation 4 (WF4) ReHosting

  - by Russ Clark

  I've been looking at the possibility of ReHosting a WF4 Workflow to be used to debug running Workflows. All the posts and samples I've seen regarding WF4 Rehosting are using a WPF application to initially Host the Workflow, and then use the WorkflowDesigner in ReHosting it. Is there any way to Rehost a Workflow that was hosted…

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• How to read the Web.Config file in a Custom Activity Designer in a WF4 Workflow Service

  - by Preet Sangha

  I have a WF service with a custom activity and a custom designer (WPF). I want to add a validation that will check for the presence of some value in the web.config file. At runtime I can overload void CacheMetadata(ActivityMetadata metadata) and thus I can do the validation happily there using…

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• Appfabric WF4-WCF services, how to retrive current url in codeactivity without httpcontext?

  - by tartafe

  Hi, i have developed a wf-wcf services with a code activity and in it i want to retrive the current url of the service. If i disabling the persistence feature of appfabric i can retrive the url using HttpContext.Current.Request.Url.ToString() If the persistence feature is enabled the…

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• Windows Workflow Foundation 4 (WF4) Delay

  - by Russ Clark

  I'm working with the the Release Candidate of Visual Studio 2010 using Wf4 to write a new workflow for approving resource requests. In my workflow, I would like for a request to expire after a few days if no approval has been made for the request. We did this in WF 3.5 (Visual Studio…

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• Windows Workflow Foundation 4 (WF4) Error Handling

  - by Russ Clark

  What is the best way to get error messages from a WF4 workflow back to a hosting ASP.NET MVC application? I need the workflow to not terminate, but continue to be active, and then pass a message back to the hosting app regarding the error, so the user can take an alternative action,…

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• How do I access database from WF4?

  - by Patrol02

  Hi Guys, I host a wcf workflow service within my ASP.NET MVC2 application. I need to be able to load/save data inside my workflow (WF4). How it can be done? Should I just instantiate my Entity Framework context within my activities and read/write? Cheers.

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• Hosting Workflow Runtime in ASP.Net (WF4)

  - by wwfguy

  In WF 3.5 we used ManualWorkflowScheduler service to host workflows in Asp.Net. What is the equivalent way of doing this in WF4? Are new classed like WorkflowServiceHost or WorkflowApplication suitable to use in Asp.Net?

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• Loading persisted workflow after workflowdefinition has changed in WF4

  - by Flores

  How to solve this problem (in WF4): I create a workflow in xaml and start several instances of it, I have a persistancestore and all workflows persist on a bookmark half way their workflow. Now I stop the application If I restart te application everything is resumed, en nicely…

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• Host new WF4 workflows in appfabric

  - by racingcow

  Hello, I am new to using AppFabric to host WF services. I am trying to write a workflow admin application that will allow users to create xaml workflow definitions using the hosted WF4 designer, and then somehow allow those workflow defitions to be automatically deployed and…

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• Windows Workflow Foundation 4 (WF4) Bookmark

  - by Russ Clark

  I'm working with Visual Studio 2010 and have a workflow where I'm trying to resume a bookmark. The bookmark appears to be getting set just fine, but when I try to run the code below to resume it, I get an entry in the InstancesTable in the persistence database with the…

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• WF4 workflow versioning using WorkflowServiceHost

  - by rwwilden

  Related to this question. I understand how to implement versioning of workflows using WorkflowApplication. If you keep the original XAML definition for older versions of your workflow around, you can load them using the right WorkflowApplication constructor. How could…

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• Design workflows for WF4 in Silverlight

  - by avi1234

  Hi, My system is based on activities and I want to give the analysts users the opportunity to create dynamics flows (at runtime). The designer UI based on SL 4.0 . It looks like WorkflowFoundation is the most valuable solution but we didn`t find any WF version that…

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• WF4 - Display workflow design in asp.net and highlight an activity

  - by jikan_the_useless

  i need to display current status of a document approval workflow task in asp.net web page with a specific activity highlighted. i have seen the visual workflow tracker example (in wf&wcf samples) but i have two issues, 1-i have to render workflow in asp.net…

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• SynchronizationContext and Bookmarks in WF4

  - by DBatisse

  I am running workflows under asp.net and using SynchronizationContext to make the page "wait" for the workflow. Here is how I run the workflow instance under asp.net: var workflowApplication = new WorkflowApplication(activity); SynchronizationContext syncContext =…

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• WF4 – Guess the number game!

  - by MarkPearl

  I posted yesterday how really good WF4 was looking. Today I thought I would show some real basics that I was able to figure out. This will be a simple example, I am going to make a flowchart workflow – which will prompt the user to guess the number until they…

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• How can a WF4 Custom Activity determine that its in design mode v. executing mode

  - by Preet Sangha

  I have a WF4 custom activity with a custom designer (WPF). I would like to have slightly different behaviour in the CacheMetaData override depending on if the Activity is in Design or Execution mode. Since the Activity can be debugged, it could in be VS in…

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