From 4f0fccb1997560d5655166f923030289dab19f2d Mon Sep 17 00:00:00 2001
From: Mahmoud Ali <mahmoud.ali@lambda3.com.br>
Date: Tue, 1 Oct 2019 08:50:23 -0300
Subject: [PATCH]  Throw exceptions for Navigations when ConfirmNavigation is
 false

---
 .../Xamarin/Prism.Forms/Navigation/PageNavigationService.cs   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Source/Xamarin/Prism.Forms/Navigation/PageNavigationService.cs b/Source/Xamarin/Prism.Forms/Navigation/PageNavigationService.cs
index c517be493e..defa2ce16f 100644
--- a/Source/Xamarin/Prism.Forms/Navigation/PageNavigationService.cs
+++ b/Source/Xamarin/Prism.Forms/Navigation/PageNavigationService.cs
@@ -694,7 +694,9 @@ protected static async Task DoNavigateAction(Page fromPage, string toSegment, Pa
 
             var canNavigate = await PageUtilities.CanNavigateAsync(fromPage, segmentParameters);
             if (!canNavigate)
-                return;
+            {
+                throw new NavigationException(NavigationException.IConfirmNavigationReturnedFalse, toPage);
+            }
 
             await OnInitializedAsync(toPage, segmentParameters);