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POShow a popup message after completion of WorkFlow 4 from the controller MVC
 

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  1. POShow a popup message after completion of WorkFlow 4 from the controller MVC
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    <p>I am a beginner in WorkFlow 4 (WF 4), I am running through a serious issue using it in MVC 3, I couldn't find the answer online.</p> <p>I need to show a popup message if an exception occurred in the workFlow or anything returned in the outpput arguments, I have a page that the user would edit and at the end he will click Save button.</p> <p>Clicking the Save button will submit the form to the controller and run a workflow, when the workflow completed, I got an output explaining if updating the data through the workflow succeeded or not, then I need to show this status on completed action, but I am unable to since I run it asynchronously which means the method will return to the user and in parallel the workflow is invoking the event.</p> <p>Here is my code in the controller:</p> <pre><code>[HttpPost()] public ActionResult SaveVehicles(vehiclesData model) { Services.VehiclesDataUpdate vehiclesDataUpdate = new Services.VehiclesDataUpdate(this.SessionData.DealerLotKey, null, null); IDictionary&lt;string, object&gt; parameters = new Dictionary&lt;string, object&gt;(); parameters.Add("VehiclesDataUpdate", vehiclesDataUpdate); parameters.Add("UnionVehicles", unionVehicles); parameters.Add("SolrVehicles", solrVehicles); IDictionary&lt;string, object&gt; outputs = new Dictionary&lt;string, object&gt;(); AutoResetEvent syncEvent = new AutoResetEvent(false); WorkflowApplication wfApp = new WorkflowApplication(new VehiclesUpdate(), parameters); wfApp.Completed = delegate(WorkflowApplicationCompletedEventArgs e) { outputs = e.Outputs; syncEvent.Set(); if (!errorExceptions.IsNullOrEmpty()) { //TODO: Render a parital view to display an error message or the result of the workflow in the ouptput //TODO: Logging. } }; wfApp.Aborted = delegate(WorkflowApplicationAbortedEventArgs e) { syncEvent.Set(); }; wfApp.Run(); return View(model); } </code></pre> <p>How can I send something back to the user when workflow completion?</p> <p>Thanks in advance.</p>
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    1. UStereško
    1. USAlaa Osta
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    1. CO[WorkflowInvoker](http://msdn.microsoft.com/en-us/library/system.activities.workflowinvoker.aspx) or use a [ManualResetEvent](http://msdn.microsoft.com/en-us/library/system.threading.manualresetevent.aspx) to signal to the ASP.NET worker thread that the workflow application has completed execution.
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      1. POShow a popup message after completion of WorkFlow 4 from the controller MVC
      1. USWill
    2. COWould you provide me an example?
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      1. POShow a popup message after completion of WorkFlow 4 from the controller MVC
      1. USAlaa Osta
    3. COThere are plenty here. Troll through [wf4] and read. I won't answer, as I believe there might be a better solution by using [asynchronous pages](http://msdn.microsoft.com/en-us/magazine/cc163725.aspx) in ASP.NET. The problem is that I'm nowhere near familiar enough with this in order to give an adequate answer.
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      1. USWill
 

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