From 59264bc0c8de9970eb22485bb9be84e30c12da90 Mon Sep 17 00:00:00 2001
From: Sylvester Knudsen <sylvesterknudsen@gmail.com>
Date: Mon, 8 Nov 2021 14:56:24 +0000
Subject: [PATCH] Hide border if the group has no content (#12259)

---
 src/DynamoCoreWpf/UI/Themes/Modern/DynamoConverters.xaml | 1 +
 src/DynamoCoreWpf/Views/Core/AnnotationView.xaml         | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/DynamoCoreWpf/UI/Themes/Modern/DynamoConverters.xaml b/src/DynamoCoreWpf/UI/Themes/Modern/DynamoConverters.xaml
index 196f16452a4..9e590eea3a2 100644
--- a/src/DynamoCoreWpf/UI/Themes/Modern/DynamoConverters.xaml
+++ b/src/DynamoCoreWpf/UI/Themes/Modern/DynamoConverters.xaml
@@ -176,4 +176,5 @@
         TrueBrush="{StaticResource PinnedIconForegroundColor}" />
     <controls:NestedGroupsLabelConverter x:Key="NestedGroupsLabelConverter" />
     <controls:CollectionHasMoreThanNItemsToBoolConverter x:Key="CollectionHasMoreThanNItemsToBoolConverter" />
+    <controls:ListHasMoreThanNItemsToVisibilityConverter x:Key="ListHasMoreThanNItemsToVisibilityConverter" />
 </ResourceDictionary>
\ No newline at end of file
diff --git a/src/DynamoCoreWpf/Views/Core/AnnotationView.xaml b/src/DynamoCoreWpf/Views/Core/AnnotationView.xaml
index 107598bd28e..a55a0a51951 100644
--- a/src/DynamoCoreWpf/Views/Core/AnnotationView.xaml
+++ b/src/DynamoCoreWpf/Views/Core/AnnotationView.xaml
@@ -347,6 +347,7 @@
                 CornerRadius="{StaticResource ExpanderCornerRadius}"
                 IsHitTestVisible="False"
                 Canvas.ZIndex="41"
+                Visibility="{Binding Nodes, Converter={StaticResource ListHasMoreThanNItemsToVisibilityConverter}}"
                 Margin="-1">
             <Border.BorderBrush>
                 <SolidColorBrush Color="{Binding Background}" />