From e1c5fcdb0ab8ff6dcc80bc5d63e5e9b74a3391fa Mon Sep 17 00:00:00 2001
From: Jinhao <cnjinhao@hotmail.com>
Date: Sun, 28 Jan 2018 11:21:45 +0800
Subject: [PATCH] enhance performance of setting model for a listbox

---
 source/gui/widgets/listbox.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/gui/widgets/listbox.cpp b/source/gui/widgets/listbox.cpp
index b21cf392..a0c2db52 100644
--- a/source/gui/widgets/listbox.cpp
+++ b/source/gui/widgets/listbox.cpp
@@ -5158,7 +5158,8 @@ namespace nana
 						cat_->make_sort_order();
 						ess_->lister.sort();
 
-						ess_->update(true);
+						//Don't ignore the auto-draw flag for performance enhancement.
+						ess_->update();
 					}
 				}
 			//end class cat_proxy