From d988a94acba127d7cf189eb391d81b0ff8ed992a Mon Sep 17 00:00:00 2001
From: Paul Cornett <paulcor@bullseye.com>
Date: Sun, 1 Feb 2015 18:06:06 +0000
Subject: [PATCH] avoid passing invalid rect to Refresh(), closes #16819

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@78431 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/generic/grid.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/generic/grid.cpp b/src/generic/grid.cpp
index 6d7815a3ab..720db75ed4 100644
--- a/src/generic/grid.cpp
+++ b/src/generic/grid.cpp
@@ -2114,7 +2114,8 @@ void wxGridWindow::OnFocus(wxFocusEvent& event)
                                             m_owner->GetGridCursorCol());
         const wxRect cursor =
             m_owner->BlockToDeviceRect(cursorCoords, cursorCoords);
-        Refresh(true, &cursor);
+        if (cursor != wxGridNoCellRect)
+            Refresh(true, &cursor);
     }
 
     if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )