public ViewModelForwardAndBackEventArgs(IBaseViewModelForwardAndBack viewModel)
{
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
_viewModel = viewModel;
}
protected virtual void OnCallBackViewModel(IBaseViewModelForwardAndBack viewModel)
{
_onCallBackViewModel(new ViewModelForwardAndBackEventArgs(viewModel));
}
public void SetBackViewModel(IBaseViewModelForwardAndBack viewModel)
{
_backViewModel = viewModel;
}
public void SetForwardViewModel(IBaseViewModelForwardAndBack viewModel)
{
_forwardViewModel = viewModel;
}
