From e0eeb67192721b59805fae76c8ef4ee562444ac6 Mon Sep 17 00:00:00 2001
From: wanghaoo <wanghaoo@yonyou.com>
Date: Tue, 25 Dec 2018 13:34:37 +0800
Subject: [PATCH] 1

---
 src/lib/bigData.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/lib/bigData.js b/src/lib/bigData.js
index 0374b0e..c265edd 100644
--- a/src/lib/bigData.js
+++ b/src/lib/bigData.js
@@ -22,7 +22,8 @@ export default function bigData(Table) {
       };
       const rowHeight = this.props.height?this.props.height:defaultHeight
       //默认显示25条，rowsInView根据定高算的。在非固定高下，这个只是一个大概的值。
-      this.rowsInView =  this.props.scroll.y?Math.ceil(this.props.scroll.y/rowHeight):20 ;
+      const scrollY = this.props.scroll.y ? parseInt(this.props.scroll.y) : 0;
+      this.rowsInView =  scrollY ? Math.ceil(scrollY/rowHeight):20 ;
       this.currentIndex = 0;
       this.loadCount = props.loadBuffer? this.rowsInView + props.loadBuffer*2:26;//一次加载多少数据
       this.cachedRowHeight = [];//缓存每行的高度