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* docs: update demo * chore: add script * test: fix demo test * docs: convert demos * chore: move script * test: remove react-dom import * chore: update deps * docs: update riddle js * test: fix image test * docs: fix riddle demo
1.2 KiB
1.2 KiB
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7.1 |
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zh-CN
beforeUpload
返回 false
或 Promise.reject
时,只用于拦截上传行为,不会阻止文件进入上传列表(原因)。如果需要阻止列表展现,可以通过返回 Upload.LIST_IGNORE
实现。
en-US
beforeUpload
only prevent upload behavior when return false or reject promise, the prevented file would still show in file list. Here is the example you can keep prevented files out of list by return UPLOAD.LIST_IGNORE
.
import React, { useState } from 'react';
import { Upload, Button, message } from 'antd';
import { UploadOutlined } from '@ant-design/icons';
const Uploader = () => {
const props = {
beforeUpload: file => {
const isPNG = file.type === 'image/png';
if (!isPNG) {
message.error(`${file.name} is not a png file`);
}
return isPNG || Upload.LIST_IGNORE;
},
onChange: info => {
console.log(info.fileList);
},
};
return (
<Upload {...props}>
<Button icon={<UploadOutlined />}>Upload png only</Button>
</Upload>
);
};
export default () => <Uploader />;