Is RaisePropertChanged() Method in ViewModelBase be called in UI Thread?

[n/a]

There are often cases that raisePropertyChanged() Method is called outside UI main thread.

Is it okay to call it in this way, or should I use Dispathcer.Invoke()? 

[Martin Ivanov]

Hello Jiwon,

It is better to use Dispatcher.Invoke or Dispatcher.BeginInvoke. Any change related to the UI should be made on the main UI thread. Otherwise, WPF throws an InvalidOperationException.

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

Regards,
Martin Ivanov
Progress Telerik