Is it possible to create UI control other then main thread

You cannot create UI objects on different thread than the main UI thread because as soon as you add them to the UI, it tries to set the Parent property, and a thread in WPF cannot modify objects that were created on a different thread. Instead, I'd recommend creating a list or collection of the Grid's Data on the 2nd thread, and binding it to the UI using something like an ItemsControl. This will keep all UI objects on the main UI thread, while background processing can be done on a background thread. To update a UI object from a background thread, such as your status label. The Dispatcher is WPF's internal message queue for the main UI thread