public ProgramSettingsViewModel()
{
SaveCommand = new RelayCommand(SaveAction, SaveCommand_CanExecute);
CancelCommand = new RelayCommand(CancelAction);
Messenger.Default.Register<GenericMessage<LocalProgramHeader>>(this,
ViewModelMessagingToken.CurrentProgramHeaderChangedListener, CurrentProgramHeaderChangedMessageAction);
Messenger.Default.Register<GenericMessage<Program>>(this,
ViewModelMessagingToken.CurrentProgramChangedListener, CurrentProgramChangedMessageAction);
}