From 0ede3cf555e9dc381dc73f6a4b4d71cf49dc9e8c Mon Sep 17 00:00:00 2001
From: Daniel Grunwald <daniel@danielgrunwald.de>
Date: Wed, 16 Feb 2011 17:34:15 +0100
Subject: [PATCH] Fix TreeFlattener.IndexOf (avoids crash when navigating or
 loading assemblies while a search filter is active)

---
 SharpTreeView/TreeFlattener.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SharpTreeView/TreeFlattener.cs b/SharpTreeView/TreeFlattener.cs
index eb6895084..332031dfd 100644
--- a/SharpTreeView/TreeFlattener.cs
+++ b/SharpTreeView/TreeFlattener.cs
@@ -81,7 +81,7 @@ namespace ICSharpCode.TreeView
 		public int IndexOf(object item)
 		{
 			SharpTreeNode node = item as SharpTreeNode;
-			if (node != null && node.GetListRoot() == root) {
+			if (node != null && node.IsVisible && node.GetListRoot() == root) {
 				if (includeRoot)
 					return SharpTreeNode.GetVisibleIndexForNode(node);
 				else