From c314f5b5f3e40709e6b6603b7ab637e595a335fe Mon Sep 17 00:00:00 2001
From: wp_xxyyzz <wp_xxyyzz@8e941d3f-bd1b-0410-a28a-d453659cc2b4>
Date: Wed, 12 Oct 2022 21:10:54 +0000
Subject: [PATCH] tvplanit/PrintPreview: Clear preview when all print formats
 are deleted.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@8546 8e941d3f-bd1b-0410-a28a-d453659cc2b4
---
 components/tvplanit/source/vpedfmtlst.pas | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/tvplanit/source/vpedfmtlst.pas b/components/tvplanit/source/vpedfmtlst.pas
index 9c0ad6feb..3b8e6e650 100644
--- a/components/tvplanit/source/vpedfmtlst.pas
+++ b/components/tvplanit/source/vpedfmtlst.pas
@@ -258,7 +258,7 @@ begin
     Prn.CurFormat := fmtIdx;
     UpdatePreview;
   end else
-    ; // to do: clear preview
+    PrintPreview.ForceUpdate;
   EnableFormatButtons(true);
   EnableElementButtons(true);
 end;