From 8c1b4d827d69635cd0349ab974a1394e1f309fcb Mon Sep 17 00:00:00 2001
From: Jikkai Xiao <jikkai@users.noreply.github.com>
Date: Mon, 4 Jun 2018 11:34:37 +0800
Subject: [PATCH] Table: retain currently selected row when expanding row
 (#11464)

---
 packages/table/src/table-body.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/table/src/table-body.js b/packages/table/src/table-body.js
index b2e93bca3..8510bf66c 100644
--- a/packages/table/src/table-body.js
+++ b/packages/table/src/table-body.js
@@ -267,7 +267,8 @@ export default {
     },
 
     getRowClass(row, rowIndex) {
-      const classes = ['el-table__row'];
+      const currentRow = this.store.states.currentRow;
+      const classes = currentRow === row ? ['el-table__row', 'current-row'] : ['el-table__row'];
 
       if (this.stripe && rowIndex % 2 === 1) {
         classes.push('el-table__row--striped');