fix #1417

src/ExpandRowHeaderColumn.js

@@ -0,0 +1,19 @@
+import React, { Component, PropTypes } from 'react';
+
+class ExpandRowHeaderColumn extends Component {
+
+  render() {
+    return (
+      <th rowSpan={ this.props.rowCount } style={ { textAlign: 'center' } }
+        className='react-bs-table-expand-cell'
+        data-is-only-head={ false }>
+        { this.props.children }
+      </th>
+    );
+  }
+}
+ExpandRowHeaderColumn.propTypes = {
+  children: PropTypes.node,
+  rowCount: PropTypes.number
+};
+export default ExpandRowHeaderColumn;

src/TableHeader.js

@@ -3,6 +3,7 @@ import ReactDOM from 'react-dom';
 import Const from './Const';
 import classSet from 'classnames';
 import SelectRowHeaderColumn from './SelectRowHeaderColumn';
+import ExpandRowHeaderColumn from './ExpandRowHeaderColumn';
 
 class Checkbox extends Component {
   componentDidMount() { this.update(this.props.checked); }
@@ -55,13 +56,13 @@ class TableHeader extends Component {
     rows[0].push( [
       this.props.expandColumnVisible &&
         this.props.expandColumnBeforeSelectColumn &&
-          <th className='react-bs-table-expand-cell'> </th>
+          <ExpandRowHeaderColumn rowCount={ rowCount + 1 }/>
     ], [
       this.renderSelectRowHeader(rowCount + 1, rowKey++)
     ], [
       this.props.expandColumnVisible &&
         !this.props.expandColumnBeforeSelectColumn &&
-          <th className='react-bs-table-expand-cell'> </th>
+          <ExpandRowHeaderColumn rowCount={ rowCount + 1 }/>
     ]);
     const { sortIndicator, sortList, onSort, reset } = this.props;