From f85e8f86c0b1867534f63fedd998220ffaa71ea4 Mon Sep 17 00:00:00 2001
From: mha <mha@neasenergy.com>
Date: Wed, 15 Mar 2017 09:41:59 +0100
Subject: [PATCH 1/2] Added FindVisualChildren method to traverse and find
 control. Changed LayouAccessor constructor to look for TabablzControl instead
 of just (trying to) convert Layout.Content to TabablzControl.

---
 Dragablz/Dockablz/LayoutAccessor.cs | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/Dragablz/Dockablz/LayoutAccessor.cs b/Dragablz/Dockablz/LayoutAccessor.cs
index 002538c..736ea2a 100644
--- a/Dragablz/Dockablz/LayoutAccessor.cs
+++ b/Dragablz/Dockablz/LayoutAccessor.cs
@@ -1,5 +1,8 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
+using System.Windows;
+using System.Windows.Media;
 
 namespace Dragablz.Dockablz
 {
@@ -22,7 +25,27 @@ public LayoutAccessor(Layout layout)
             if (branch != null)
                 _branchAccessor = new BranchAccessor(branch);
             else            
-                _tabablzControl = Layout.Content as TabablzControl;            
+                _tabablzControl = FindVisualChildren<TabablzControl>(Layout).SingleOrDefault();
+        }
+
+        private static IEnumerable<T> FindVisualChildren<T>(DependencyObject depObject) where T : DependencyObject
+        {
+            if (depObject != null)
+            {
+                for (int i = 0; i < VisualTreeHelper.GetChildrenCount(depObject); i++)
+                {
+                    var child = VisualTreeHelper.GetChild(depObject, i);
+                    if (child != null && child is T)
+                    {
+                        yield return (T)child;
+                    }
+
+                    foreach (T childOfChild in FindVisualChildren<T>(child))
+                    {
+                        yield return childOfChild;
+                    }
+                }
+            }
         }
 
         public Layout Layout

From db68108ecb73522f0c7c4fbd233bd964bb320ce6 Mon Sep 17 00:00:00 2001
From: mha <mha@neasenergy.com>
Date: Wed, 15 Mar 2017 13:20:48 +0100
Subject: [PATCH 2/2] Removed FindVisualChildren method, and changed to use the
 VisualTreeDepthFirstTraversal instead.

---
 Dragablz/Dockablz/LayoutAccessor.cs | 23 ++---------------------
 1 file changed, 2 insertions(+), 21 deletions(-)

diff --git a/Dragablz/Dockablz/LayoutAccessor.cs b/Dragablz/Dockablz/LayoutAccessor.cs
index 736ea2a..82d4160 100644
--- a/Dragablz/Dockablz/LayoutAccessor.cs
+++ b/Dragablz/Dockablz/LayoutAccessor.cs
@@ -3,6 +3,7 @@
 using System.Linq;
 using System.Windows;
 using System.Windows.Media;
+using Dragablz.Core;
 
 namespace Dragablz.Dockablz
 {
@@ -25,27 +26,7 @@ public LayoutAccessor(Layout layout)
             if (branch != null)
                 _branchAccessor = new BranchAccessor(branch);
             else            
-                _tabablzControl = FindVisualChildren<TabablzControl>(Layout).SingleOrDefault();
-        }
-
-        private static IEnumerable<T> FindVisualChildren<T>(DependencyObject depObject) where T : DependencyObject
-        {
-            if (depObject != null)
-            {
-                for (int i = 0; i < VisualTreeHelper.GetChildrenCount(depObject); i++)
-                {
-                    var child = VisualTreeHelper.GetChild(depObject, i);
-                    if (child != null && child is T)
-                    {
-                        yield return (T)child;
-                    }
-
-                    foreach (T childOfChild in FindVisualChildren<T>(child))
-                    {
-                        yield return childOfChild;
-                    }
-                }
-            }
+                _tabablzControl = Layout.VisualTreeDepthFirstTraversal().OfType<TabablzControl>().FirstOrDefault();
         }
 
         public Layout Layout