Gymnastika.Common.Navigation.NavigationService.OnNavigationStart C# (CSharp) Method

        private void OnNavigationStart(NavigationDescriptor sourceDescriptor, NavigationDescriptor targetDescriptor, ViewState targetState)
        {
            if (NavigationStart != null)
                NavigationStart(this,
                    new NavigationEventArgs(sourceDescriptor, targetDescriptor) { TargetState = targetState });
        }