What's the best way to update an ObservableCollection from another thread?

Question

I am using the BackgroundWorker to update an ObservableCollection but it gives this error:

\"This type of CollectionVi

Answer 1

You are using BGW, it was designed to solve your problem. But you'll have to use it properly, update the collection in a ProgressChanged or RunWorkerCompleted event handler. If that's what you are doing then you created the BGW instance on the wrong thread. It has to be done on the UI thread.