WinForms Application: Unexpected Behavior with BackgroundWorker and UI Updates
I just started working with I'm attempting to set up I keep running into Could someone explain I'm prototyping a solution and I'm experiencing an issue with a `BackgroundWorker` in my WinForms application..... I want to perform a long-running operation without freezing the UI, but it seems that the `ProgressChanged` event is not updating the UI as expected. I'm using .NET Framework 4.8. When I call the `ReportProgress` method from within the `DoWork` event, the UI doesn't reflect the updates that I expect. Here's the relevant part of my code: ```csharp private void btnStart_Click(object sender, EventArgs e) { BackgroundWorker worker = new BackgroundWorker(); worker.WorkerReportsProgress = true; worker.DoWork += Worker_DoWork; worker.ProgressChanged += Worker_ProgressChanged; worker.RunWorkerCompleted += Worker_RunWorkerCompleted; worker.RunWorkerAsync(); } private void Worker_DoWork(object sender, DoWorkEventArgs e) { for (int i = 0; i <= 100; i++) { Thread.Sleep(50); // Simulate long-running work (sender as BackgroundWorker).ReportProgress(i); } } private void Worker_ProgressChanged(object sender, ProgressChangedEventArgs e) { progressBar.Value = e.ProgressPercentage; labelStatus.Text = $"Progress: {e.ProgressPercentage}%"; } private void Worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) { MessageBox.Show("Operation completed!"); } ``` When I start the background worker, the progress bar does not update in real-time as I would expect. Instead, it seems to update only after the entire background process completes. I've confirmed that the `ProgressChanged` event does fire, but the UI does not refresh until after the worker is finished. I've tried invoking the UI thread using `Invoke` inside the `ProgressChanged` method, but it didn't resolve the issue. What could be causing this behavior? Am I missing something in the configuration or implementation of the `BackgroundWorker`? Any insights would be greatly appreciated! I'm using Csharp stable in this project. Could someone point me to the right documentation? For reference, this is a production mobile app. This is part of a larger CLI tool I'm building. For context: I'm using Csharp on Ubuntu 20.04.