From 06d692e3aa157d835f29b8646e9a5820d09bc80b Mon Sep 17 00:00:00 2001
From: Thomas Blohorn <tblohorn@users.noreply.github.com>
Date: Wed, 4 Sep 2013 14:27:12 +0200
Subject: [PATCH] Issue 56 "Frozen rows are not redrawn when the vertical
 scrollbar is down"

proposed fixe for Issue 56 "Frozen rows are not redrawn when the vertical scrollbar is down"
---
 slick.grid.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/slick.grid.js b/slick.grid.js
index 9c525b003..e914c6d62 100644
--- a/slick.grid.js
+++ b/slick.grid.js
@@ -2629,6 +2629,16 @@ if (typeof Slick === "undefined") {
 
             // add new rows & missing cells in existing rows
             if (lastRenderedScrollLeft != scrollLeft) {
+                if (hasFrozenRows) {
+                    if (rendered.top>options.frozenRow+1){ // render frozen row range first
+                        var renderedFrozenRows = jQuery.extend(true, {}, rendered);
+                        renderedFrozenRows.top=0;
+                        renderedFrozenRows.bottom=options.frozenRow;
+                        cleanUpAndRenderCells(renderedFrozenRows);
+                    } else { // merge data range and frozen row range
+                        rendered.top=0;
+                    }
+                }
                 cleanUpAndRenderCells(rendered);
             }