This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(153.6, 4%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJD%3C/text%3E%3C/svg%3E)
I have a C# program with this line inside a loop:
Dispatcher.Invoke(updateProgressBar1, System.Windows.Threading.DispatcherPriority.Background, new object[] { ProgressBar.ValueProperty, j });
when I want to close the application by clicking the close button in the title bar, the application continues to run for a long time... how can I abort the work in the background?? How in general can I close all threads?
Thanks!
Juan
@Juan Dent , Welcome to Microsoft Q&A, Could you provide more related code about your problem? Just with the current code you provided, we could not analyze your problem.
We are waiting for your update.
Have you considered using an asynchronous Task coupled with IProgress and a CancellationToken?
See my code sample
First I need an answer to my question then I can refactor...
Well in regards to
how can I abort the work in the background?? How in general can I close all threads
I've given you an alternative rather than what you have. As I see it you are asking for assistance with a current code set which does not mean you can't go in a different direction and a better way also.
as a community expert my question should not be that difficult to answer... I will take a look at your code and refactor, but can you please help me with my exact question please?
Regards,
Juan
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 61%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBS%3C/text%3E%3C/svg%3E)
Dispatcher does not use threads, it always the thread the Dispatcher is created on. you probably want to shutdown the dispatcher, so it no longer processes the queue.
Dispatcher.InvokeShutdown();
if you started a separate thread to run the Dispatcher, then you can kill that thread if you saved the thread handle.
Dispatcher.InvokeShutdown() does not stop the application!!
You don’t explain your app. How was dispatcher setup? Do you create any threads? How are you closing your app?
The Dispatch.Shutdown() does not stop the current background process, just stops doing any more in the queue.