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POPassing custom object to RunWorkerCompleted event in case of an exception
 

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  1. POPassing custom object to RunWorkerCompleted event in case of an exception
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    <p>My Console App uses <code>System.ComponentModel.BackgroundWorker</code> for threading purposes:</p> <pre><code>System.ComponentModel.BackgroundWorker backgroundWorker = new System.ComponentModel.BackgroundWorker(); backgroundWorker.DoWork += (sender, e) =&gt; ReportStatus(worker, status, result, e); backgroundWorker.RunWorkerCompleted += new System.ComponentModel.RunWorkerCompletedEventHandler(backgroundWorker1_RunWorkerCompleted); backgroundWorker.RunWorkerAsync(worker); </code></pre> <p>As you can see that I am passing "worker" as an argument inside RunWorkerAsync.</p> <p>What I am trying to achieve is that if there is an exception inside ReportStatus method I need the same "worker" object so that I can perform some operation (Call a service to notify that workers exception)</p> <pre><code>private void ReportStatus(Worker worker, Status status, WorkResult result,System.ComponentModel.DoWorkEventArgs arg) { var proxy = new PreparationServiceProxy(new NetTcpBinding(), new EndpointAddress(PreparationEngineState.ServiceAddress)); try { proxy.ReportStatus(worker, status, result); proxy.Close(); } catch (Exception) { arg.Result = worker; proxy.Abort(); throw; } } </code></pre> <p>In my exception block (I am not sure if this is the correct way!) I am assigning the worker to the Result so that I can get the same worker back when the RunWorkerCompleted method (backgroundWorker1_RunWorkerCompleted) is executed :</p> <pre><code>private void backgroundWorker1_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e) { if (e.Error != null) { Worker worker = e.Result as Worker; // At this point I get an exception! } } </code></pre>
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    1. USJohn Saunders
    1. USMurtaza Mandvi
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      1. POPassing custom object to RunWorkerCompleted event in case of an exception
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      1. VTUpMod
    2. VO
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      1. POPassing custom object to RunWorkerCompleted event in case of an exception
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    1. COwhat exception do you get?
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      1. POPassing custom object to RunWorkerCompleted event in case of an exception
      1. USalex.b
    2. COSo what's your question??
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      1. POPassing custom object to RunWorkerCompleted event in case of an exception
      1. USPhilipp Munin
    3. COSorry if I was not clear, but the basic question is that inside "backgroundWorker1_RunWorkerCompleted" I get an exception when I try to convert my argument back to the worker object:
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      1. POPassing custom object to RunWorkerCompleted event in case of an exception
      1. USMurtaza Mandvi
 

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