WPF progress bar update with dispatcher

Question

I am trying to update a progressbar using the dispatcher but somehow cannot think where to place the dispatcher.Invoke and what to pass inside it.

Im trying to impor

Answer 1

I am assuming that you've started a background thread to import the files. You should consider using BackgroundWorker for this, which is lightweight and has a mechanism built in to report progress (e.g., a ProgressBar) using an event.

If you want to use a new thread, anywhere within the processing that you are doing, just declare a delegate, add a function to target, and call Dispatcher.BeginInvoke:

Dispatcher.BeginInvoke(DispatcherPriority.Normal, new UpdateProgressDelegate(UpdateProgress), myProgressData);

//...

private delegate void UpdateProgressDelegate(ProgressClass progressClass);

void UpdateProgress(ProgressClass progressClass)
{
    progressbar.updateprogress(progressclass);
    progressbar.show(); 
}