From eebdcbd84c9004e2589e96b9c4502be9badfb1e5 Mon Sep 17 00:00:00 2001
From: ghiscoding <gbeaulac@gmail.com>
Date: Thu, 24 Jun 2021 17:17:43 -0400
Subject: [PATCH] fix: broken UI when loading grid from hidden div/tab

---
 slick.grid.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/slick.grid.js b/slick.grid.js
index b6942a51..a645a74f 100644
--- a/slick.grid.js
+++ b/slick.grid.js
@@ -3618,7 +3618,8 @@ if (typeof Slick === "undefined") {
       }
 
       $paneTopL.css({
-        'top': $paneHeaderL.height(), 'height': paneTopH
+        'top': $paneHeaderL.height() || (options.showHeaderRow ? options.headerRowHeight : 0) + (options.showPreHeaderPanel ? options.preHeaderPanelHeight : 0),
+        'height': paneTopH
       });
 
       var paneBottomTop = $paneTopL.position().top