From 935e695d013679bf1f67e449de658c837bba6aa7 Mon Sep 17 00:00:00 2001
From: Steve Bilogan <steve.bilogan@gmail.com>
Date: Tue, 7 Jun 2022 10:56:59 -0400
Subject: [PATCH] fix(NavigationView): Avoid crash in NavBar for missing
 ContentControl

---
 .../Styles/Controls/v2/NavigationView.xaml           | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/library/Uno.Material/Styles/Controls/v2/NavigationView.xaml b/src/library/Uno.Material/Styles/Controls/v2/NavigationView.xaml
index 7f22c855f..14577d93c 100644
--- a/src/library/Uno.Material/Styles/Controls/v2/NavigationView.xaml
+++ b/src/library/Uno.Material/Styles/Controls/v2/NavigationView.xaml
@@ -1205,7 +1205,17 @@
 							</Grid.RowDefinitions>
 
 							<!-- DisplayMode top -->
-							<StackPanel x:Name="TopNavArea" />
+							<StackPanel x:Name="TopNavArea">
+
+								<!-- As of Microsoft.UI.Xaml 2.6.0-prerelease.210430001, PaneTitleOnTopPane must be present in the template -->
+								<ContentControl x:Name="PaneTitleOnTopPane"
+												Height="5"
+												VerticalAlignment="Stretch"
+												HorizontalAlignment="Center"
+												VerticalContentAlignment="Stretch"
+												HorizontalContentAlignment="Center"
+												Visibility="Collapsed" />
+							</StackPanel>
 
 							<!-- Displaymode (compact/minimal/normal) left -->
 							<SplitView x:Name="RootSplitView"