From cc028cee30992b333594bf918440ca4414f9a912 Mon Sep 17 00:00:00 2001
From: Ansgar Becker <ansgarbecker@users.noreply.github.com>
Date: Mon, 30 Nov 2009 20:58:31 +0000
Subject: [PATCH] Fix sporadic access violation when a new row was inserted and
 UPDATE or INSERT gets posted. Fixes issue #1496

---
 source/main.pas | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/source/main.pas b/source/main.pas
index 150e8264..a283473e 100644
--- a/source/main.pas
+++ b/source/main.pas
@@ -6768,6 +6768,8 @@ end;
 function TMainForm.DataGridPostUpdateOrInsert(Node: PVirtualNode): Boolean;
 begin
   Result := True;
+  if not Assigned(Node) then
+    Exit;
   if Cardinal(High(DataGridResult.Rows)) >= Node.Index then
     case DataGridResult.Rows[Node.Index].State of
       grsModified: Result := GridPostUpdate(DataGrid);