From 29fc286ba3fc3ea820ee03ee716db4e5e4aa135c Mon Sep 17 00:00:00 2001
From: Jinhao <cnjinhao@hotmail.com>
Date: Thu, 31 Aug 2017 04:36:09 +0800
Subject: [PATCH] fix bug that throws exception in listbox::column_at(#248)

---
 source/gui/widgets/listbox.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/source/gui/widgets/listbox.cpp b/source/gui/widgets/listbox.cpp
index a6161056..c49841c5 100644
--- a/source/gui/widgets/listbox.cpp
+++ b/source/gui/widgets/listbox.cpp
@@ -433,8 +433,16 @@ namespace nana
 				{
 					check_range(pos, cont_.size());
 
+					//The order of cont_'s elements is the display order.
 					if (!disp_order)
-						pos = this->cast(pos, false);
+					{
+						/// It always match the item with pos, otherwise a bug occurs.
+						for (auto & m : cont_)
+						{
+							if (m.index == pos)
+								return m;
+						}
+					}
 					
 					return cont_[pos];
 				}