From cec743257e19ce55ed3e1f4f097372a278606b19 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jean-Philippe=20Bruy=C3=A8re?= <jp_bruyere@hotmail.com>
Date: Thu, 8 Mar 2018 08:46:43 +0100
Subject: [PATCH] csharp parser wip

---
 src/GraphicObjects/DockStack.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/GraphicObjects/DockStack.cs b/src/GraphicObjects/DockStack.cs
index bfd3ac9a..e9a53486 100644
--- a/src/GraphicObjects/DockStack.cs
+++ b/src/GraphicObjects/DockStack.cs
@@ -204,6 +204,8 @@ namespace Crow
 			}
 
 			DockWindow dw = IFace.DragAndDropOperation.DragSource as DockWindow;
+			if (dw == null)
+				return;
 			if (!dw.IsDocked) {
 				Rectangle cb = ClientRectangle;
 				double minDim = Math.Min (cb.Width, cb.Height);
-- 
2.47.3