WPF System.InvalidOperationException: The calling thread cannot access this object because a different thread owns it

Question

In my Windows I have a TextBox which I like to update (text property) from another thread. When doing so, I get the InvalidOperationException (see title). I have found diffe

Answer 1

For WPF, I find this construct:

 BackgroundWorker bw = new BackgroundWorker();
  bw.DoWork += ( s, e ) =>
  {
  };
  bw.RunWorkerCompleted += ( s, e ) =>
  {
  };
  bw.RunWorkerAsync();

to be the most useful. The RunWorkerCompleted block will typically update an ObservableCollection or fire off a RaisePropertyChangedEvent.