From 0a3272252d6cd801b8debc807697fd9969912f46 Mon Sep 17 00:00:00 2001
From: Daniel Gornstein <dgornstein@semanticresearch.com>
Date: Mon, 14 Nov 2016 16:21:53 -0800
Subject: [PATCH] fix(row-height): protect row undefined

Closes #280
---
 src/utils/row-height-cache.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/utils/row-height-cache.ts b/src/utils/row-height-cache.ts
index 4dc2f9375..b747c6903 100644
--- a/src/utils/row-height-cache.ts
+++ b/src/utils/row-height-cache.ts
@@ -54,7 +54,7 @@ export class RowHeightCache {
 
       // Add the detail row height to the already expanded rows.
       // This is useful for the table that goes through a filter or sort.
-      if (rows[i].$$expanded === 1) {
+      if (rows[i] && rows[i].$$expanded === 1) {
         currentRowHeight += detailRowHeight;
       }