From 9f886c7564b96d3a40f78b8a9ab569e065c637f1 Mon Sep 17 00:00:00 2001
From: Dennis Fischer <fischer_dennis@live.de>
Date: Mon, 5 Oct 2015 23:59:14 +0200
Subject: [PATCH] Fix a NullReferenceException in the syntax visualizer.

The syntax visualizer crashed Visual Studio when observing the constant value of `null`. This was because the syntax visualizer was not expecting
GetConstantValue().Value to be null with .HasValue set to true.
---
 .../SyntaxVisualizerControl/SyntaxVisualizerControl.xaml.cs     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Tools/Source/SyntaxVisualizer/SyntaxVisualizerControl/SyntaxVisualizerControl.xaml.cs b/src/Tools/Source/SyntaxVisualizer/SyntaxVisualizerControl/SyntaxVisualizerControl.xaml.cs
index 25f7dbee5f4..6cdcb3f3cbd 100644
--- a/src/Tools/Source/SyntaxVisualizer/SyntaxVisualizerControl/SyntaxVisualizerControl.xaml.cs
+++ b/src/Tools/Source/SyntaxVisualizer/SyntaxVisualizerControl/SyntaxVisualizerControl.xaml.cs
@@ -778,7 +778,7 @@ private void ConstantValueDetailsMenuItem_Click(object sender, RoutedEventArgs e
                 else
                 {
                     typeTextLabel.Visibility = Visibility.Visible;
-                    typeValueLabel.Content = value.Value.GetType().Name;
+                    typeValueLabel.Content = value.Value?.GetType().Name ?? "<null>";
                     _propertyGrid.SelectedObject = value;
                 }
             }
-- 
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