From 5a34acac2d4588d8fce104019a99a76cb2c57cee Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Wed, 14 Jun 2017 01:58:58 +0200
Subject: [PATCH] Don't need to do this.

We don't need to invalidate newly added controls with the layout manager - this is already handed by the parent control.
---
 src/Avalonia.Layout/Layoutable.cs | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/src/Avalonia.Layout/Layoutable.cs b/src/Avalonia.Layout/Layoutable.cs
index bea62efe50..f594450039 100644
--- a/src/Avalonia.Layout/Layoutable.cs
+++ b/src/Avalonia.Layout/Layoutable.cs
@@ -620,15 +620,6 @@ namespace Avalonia.Layout
             base.OnVisualParentChanged(oldParent, newParent);
         }
 
-        protected override void OnAttachedToVisualTreeCore(VisualTreeAttachmentEventArgs e)
-        {
-            base.OnAttachedToVisualTreeCore(e);
-            if(!IsMeasureValid)
-                (VisualRoot as ILayoutRoot)?.LayoutManager.InvalidateMeasure(this);
-            else if (!IsArrangeValid)
-                (VisualRoot as ILayoutRoot)?.LayoutManager.InvalidateArrange(this);
-        }
-
         /// <summary>
         /// Calls <see cref="InvalidateMeasure"/> on the control on which a property changed.
         /// </summary>