fix(table): resizable column width bug #650 (#651)

packages/semi-foundation/table/utils.ts

@@ -281,7 +281,9 @@ export function assignColumnKeys(columns: Record<string, any>[], childrenColumnN
     const sameLevelCols: Record<string, any>[] = [];
     each(columns, (column, index) => {
         if (column.key == null) {
-            column.key = `${level}-${index}`;
+            // if user give column a dataIndex, use it for backup
+            const _index = column.dataIndex || index;
+            column.key = `${level}-${_index}`;
         }
         if (Array.isArray(column[childrenColumnName]) && column[childrenColumnName].length) {
             sameLevelCols.push(...column[childrenColumnName]);

packages/semi-ui/table/_story/table.stories.js

@@ -79,6 +79,7 @@ export { default as WarnColumnWithoutDataIndex } from './WarnColumnWithoutDataIn
 export { default as FixedColumnsChange } from './v2/FixedColumnsChange';
 export { default as FixedZIndex } from './v2/FixedZIndex';
 export { default as FixedHeaderMerge } from './v2/FixedHeaderMerge';
+export { default as FixedResizable } from './v2/FixedResizable';
 
 // empty table
 

packages/semi-ui/table/_story/v2/FixedResizable/index.jsx

@@ -0,0 +1,114 @@
+import React, { useState } from 'react';
+import { Table, Avatar, Button, Space } from '@douyinfe/semi-ui';
+import { IconMore } from '@douyinfe/semi-icons';
+
+const columns = [
+    {
+        title: '标题',
+        dataIndex: 'name',
+        width: 300,
+        key: 'name',
+        render: (text, record, index) => {
+            return (
+                <div>
+                    <Avatar size="small" shape="square" src={record.nameIconSrc} style={{ marginRight: 12 }}></Avatar>
+                    {text}
+                </div>
+            );
+        },
+    },
+    {
+        title: '大小',
+        dataIndex: 'size',
+        key: 'size',
+        width: 200,
+    },
+    {
+        title: '所有者',
+        dataIndex: 'owner',
+        key: 'owner',
+        width: 200,
+        render: (text, record, index) => {
+            return (
+                <div>
+                    <Avatar size="small" color={record.avatarBg} style={{ marginRight: 4 }}>
+                        {typeof text === 'string' && text.slice(0, 1)}
+                    </Avatar>
+                    {text}
+                </div>
+            );
+        },
+    },
+    {
+        title: '更新日期',
+        dataIndex: 'updateTime',
+        key: 'updateTime',
+        width: 200,
+    },
+    {
+        title: '',
+        dataIndex: 'operate',
+        key: 'operate',
+        render: () => {
+            return <IconMore />;
+        },
+    },
+];
+
+/**
+ * fix https://github.com/DouyinFE/semi-design/issues/650
+ */
+App.storyName = 'fixed resizable column width bug';
+App.parameters = { chromatic: { disableSnapshot: true } };
+function App() {
+    const [cols, setCols] = useState(columns);
+
+    const onClickHandle = () => {
+        const localCols = [...cols].filter((i, index) => index !== 1);
+        setCols(localCols);
+    };
+
+    const data = [
+        {
+            key: '1',
+            name: 'Semi Design 设计稿.fig',
+            nameIconSrc: 'https://lf3-static.bytednsdoc.com/obj/eden-cn/ptlz_zlp/ljhwZthlaukjlkulzlp/figma-icon.png',
+            size: '2M',
+            owner: '姜鹏志',
+            updateTime: '2020-02-02 05:13',
+            avatarBg: 'grey',
+        },
+        {
+            key: '2',
+            name: 'Semi Design 分享演示文稿',
+            nameIconSrc: 'https://lf3-static.bytednsdoc.com/obj/eden-cn/ptlz_zlp/ljhwZthlaukjlkulzlp/docs-icon.png',
+            size: '2M',
+            owner: '郝宣',
+            updateTime: '2020-01-17 05:31',
+            avatarBg: 'red',
+        },
+        {
+            key: '3',
+            name: '设计文档',
+            nameIconSrc: 'https://lf3-static.bytednsdoc.com/obj/eden-cn/ptlz_zlp/ljhwZthlaukjlkulzlp/docs-icon.png',
+            size: '34KB',
+            owner: 'Zoey Edwards',
+            updateTime: '2020-01-26 11:01',
+            avatarBg: 'light-blue',
+        },
+    ];
+
+    return (
+        <>
+            <Space>
+                <Button onClick={onClickHandle}>减少一列</Button>
+                <Button theme="solid" onClick={() => setCols(columns)}>
+                    reset
+                </Button>
+            </Space>
+            <Table columns={cols} dataSource={data} pagination={false} resizable />
+        </>
+    );
+}
+
+export default App;