From 3e5aebd1ac23a791319ff63698890d5b4817241f Mon Sep 17 00:00:00 2001
From: Daniel Grunwald <daniel@danielgrunwald.de>
Date: Wed, 12 Sep 2012 07:53:02 +0200
Subject: [PATCH] Fix navigate backward/forward buttons sometimes not updating
 their enabled state.

---
 .../Project/Src/Services/NavigationService/NavigationService.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Main/Base/Project/Src/Services/NavigationService/NavigationService.cs b/src/Main/Base/Project/Src/Services/NavigationService/NavigationService.cs
index e41a1c43ce..7d59ac5cda 100644
--- a/src/Main/Base/Project/Src/Services/NavigationService/NavigationService.cs
+++ b/src/Main/Base/Project/Src/Services/NavigationService/NavigationService.cs
@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Windows.Input;
 using ICSharpCode.Core;
 using ICSharpCode.SharpDevelop.Gui;
 using ICSharpCode.SharpDevelop.Project;
@@ -443,6 +444,7 @@ namespace ICSharpCode.SharpDevelop
 			if (HistoryChanged!=null) {
 				HistoryChanged(NavigationService.CurrentPosition, EventArgs.Empty);
 			}
+			CommandManager.InvalidateRequerySuggested();
 		}
 		#endregion