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POHow to report progress of a background worker created and running in another class to UI
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copied!<p>I have a button which calls a class to initiate a background worker. Everything works fine, except I want to report progress to the UI(which has the button) to be updated with background worker progress changed. I Have tried a lot things but could not succeed. The progress changed does not simply fires.</p> <p>Here is the code for initiate background worker:</p> <pre><code>var backgroundWorker = new BackgroundWorker(); ListBackgroundWorkerRunning.Add(path, backgroundWorker); backgroundWorker.WorkerReportsProgress = true; backgroundWorker.DoWork += (sender, e) => { _fileUploadRepository.UploadFiles(path); var directoryConfiguration = new DirectoryConfiguration(); directoryConfiguration.UpdateProgressBarHandler(10); //BackgroundWorker worker = sender as BackgroundWorker; //directoryConfiguration.ProgressChanged += directoryConfiguration_ProgressChanged; }; //backgroundWorker.ProgressChanged += backgroundWorker_ProgressChanged; backgroundWorker.RunWorkerCompleted += (sender, e) => { _crudOperation.UpdateDatabaseWithCrawlFinishedNotification(path); RemoveCrawler(path); InitializeWatcher(path); }; backgroundWorker.RunWorkerAsync(); </code></pre> <p>Here is progress_changed event :</p> <pre><code>//void backgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e) //{ // var directoryConfiguration = new DirectoryConfiguration(); // directoryConfiguration.Invoke(new Action(() => directoryConfiguration.progressBar1.Value = e.ProgressPercentage)); //} </code></pre>

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