Not able to use per BackgroundWorker filled model data with MVVM pattern : <p>I have WPF application with MVVM implementation and do successful fill model data (ObservableCollection) with BackgroundWorker.</p>

<p>By trying to show Dialog with this model data, I get error "<em>XamlParseException: Must create DependencySource on same Thread as the DependencyObject</em>".</p>

<p>How can I fix thread save implementation of MVVM-Pattern?</p>
