From dbe26c3b9b9e825a06af37602e53b155fbb4406c Mon Sep 17 00:00:00 2001
From: wp_xxyyzz <wp_xxyyzz@8e941d3f-bd1b-0410-a28a-d453659cc2b4>
Date: Tue, 23 Mar 2021 12:26:43 +0000
Subject: [PATCH] fpspreadsheet: Fix grid crashing in frame when Handle is not
 yet available.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@7980 8e941d3f-bd1b-0410-a28a-d453659cc2b4
---
 components/fpspreadsheet/source/visual/fpspreadsheetgrid.pas | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/fpspreadsheet/source/visual/fpspreadsheetgrid.pas b/components/fpspreadsheet/source/visual/fpspreadsheetgrid.pas
index 1a62818cf..5f783228d 100644
--- a/components/fpspreadsheet/source/visual/fpspreadsheetgrid.pas
+++ b/components/fpspreadsheet/source/visual/fpspreadsheetgrid.pas
@@ -5891,6 +5891,9 @@ var
   h: Integer;     // Row height, in pixels. Contains zoom factor.
   doCalcRowHeight: Boolean;
 begin
+  if not HandleAllocated then
+    exit;
+
   if ARow < FHeaderCount then
     exit;