From e660f922f646d5f0dad74ba1616113a8769342fe Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Wed, 15 Aug 2007 13:09:19 +0000
Subject: [PATCH] don't assert when ExpandAll() is called on hidden root item
 (fixes 1765566, replaces patch 1768282)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48097 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/common/treebase.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/common/treebase.cpp b/src/common/treebase.cpp
index f10e2af927..eb37c0dbdb 100644
--- a/src/common/treebase.cpp
+++ b/src/common/treebase.cpp
@@ -193,7 +193,9 @@ void wxTreeCtrlBase::ExpandAllChildren(const wxTreeItemId& item)
 {
     // expand this item first, this might result in its children being added on
     // the fly
-    Expand(item);
+    if ( item != GetRootItem() || !HasFlag(wxTR_HIDE_ROOT) )
+        Expand(item);
+    //else: expanding hidden root item is unsupported and unnecessary
 
     // then (recursively) expand all the children
     wxTreeItemIdValue cookie;
-- 
2.47.2