From 7b31f120e66138b9ef884252a1d3e66123ba3d29 Mon Sep 17 00:00:00 2001
From: Jan Karger <punkerat76@gmail.com>
Date: Sun, 14 Jan 2018 14:17:55 +0100
Subject: [PATCH 1/2] Set a selected Item only if there is no content set

---
 .../Controls/HamburgerMenu/HamburgerMenu.cs                  | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/MahApps.Metro/MahApps.Metro.Shared/Controls/HamburgerMenu/HamburgerMenu.cs b/src/MahApps.Metro/MahApps.Metro.Shared/Controls/HamburgerMenu/HamburgerMenu.cs
index 2d5ad28b96..91d52814b7 100644
--- a/src/MahApps.Metro/MahApps.Metro.Shared/Controls/HamburgerMenu/HamburgerMenu.cs
+++ b/src/MahApps.Metro/MahApps.Metro.Shared/Controls/HamburgerMenu/HamburgerMenu.cs
@@ -76,6 +76,11 @@ public override void OnApplyTemplate()
 
         private void HamburgerMenu_Loaded(object sender, RoutedEventArgs e)
         {
+            if (GetValue(ContentProperty) != null)
+            {
+                return;
+            }
+
             var selectedItem = _buttonsListView?.SelectedItem ?? _optionsListView?.SelectedItem;
             if (selectedItem != null)
             {

From 206fe13c523c52091bcb76bdd9ef1c0bad8fee02 Mon Sep 17 00:00:00 2001
From: Jan Karger <punkerat76@gmail.com>
Date: Sun, 14 Jan 2018 14:20:20 +0100
Subject: [PATCH 2/2] Add `HamburgerMenu` resources to Control styles to allow
 style manipulation and fix binding expression infos

---
 src/MahApps.Metro/MahApps.Metro/Styles/Controls.xaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/MahApps.Metro/MahApps.Metro/Styles/Controls.xaml b/src/MahApps.Metro/MahApps.Metro/Styles/Controls.xaml
index 2964ed3e0c..e09d3c122d 100644
--- a/src/MahApps.Metro/MahApps.Metro/Styles/Controls.xaml
+++ b/src/MahApps.Metro/MahApps.Metro/Styles/Controls.xaml
@@ -38,6 +38,7 @@
         <!--  Theme styles with keys  -->
         <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Themes/WindowButtonCommands.xaml" />
         <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Themes/Dialogs/BaseMetroDialog.xaml" />
+        <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Themes/HamburgerMenu.xaml" />
     </ResourceDictionary.MergedDictionaries>
 
     <Style x:Key="FloatingMessageContainerStyle" TargetType="{x:Type ContentControl}">