Menu
I have a GUI application that needs to run long calculations (think a minute or more) and the way that it deals with this is by giving the calculation to a background worker. (this part is fine)
The question I have is if I do something like: this.backgroundWorker.RunWorkerCompleted += new System.ComponentModel.RunWorkerCompletedEventHandler(this.doSomethingElse);
is doSomethingElse going to be run on the main UI thread or whatever in the thread pool the background worker ran on?
thank for any help you can provide.
755
BackgroundWorker, is a component in . NET Framework, that allows executing code as a separate thread and then report progress and completion back to the UI.
BackgroundWorker has already implemented functionality of reporting progress, completion and cancellation - so you don't need to implement it by yourself. Usage of Thread gives you more control over the async process execution (e.g. thread priority or choosing beetween foreground/background thread type).
BackgroundWorker Class This class is essentially a wrapper for the ThreadPool class and uses a thread pool in its implementation.
BackgroundWorker enables a simple multithreaded architecture for VB.NET programs. This is more reliable, and easier, than trying to handle threads directly. In the Toolbox pane, please double-click on the BackgroundWorker icon. This will add a BackgroundWorker1 instance to the tray at the bottom of the screen.
It's going to be run in the same thread that BackgroundWorker is in, ie most usually the UI thread.
174
is doSomethingElse going to be run on the main UI thread
Yes, that is the main reason of being for a Backgroundworker. It has 3 events, only DoWork will be executed on a separate (ThreadPool) thread. Completed and ProgressChanged will be marshaled to the 'main' thread.
39
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
