From 37e8890d2729d5e14912b3cc1a680d4672194c25 Mon Sep 17 00:00:00 2001
From: Yoh Deadfall <yoh.deadfall@hotmail.com>
Date: Tue, 30 Mar 2021 12:40:03 +0200
Subject: [PATCH] CanExecute reevaluation on attaching to logical tree

---
 src/Avalonia.Controls/Button.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Avalonia.Controls/Button.cs b/src/Avalonia.Controls/Button.cs
index c779e4b0cb..6093cbd581 100644
--- a/src/Avalonia.Controls/Button.cs
+++ b/src/Avalonia.Controls/Button.cs
@@ -218,6 +218,7 @@ namespace Avalonia.Controls
             if (Command != null)
             {
                 Command.CanExecuteChanged += CanExecuteChanged;
+                CanExecuteChanged(this, EventArgs.Empty);
             }
         }