antd上传组件删除文件的方法

Question

我有这个从 antd 获得的上传组件：react ant design documentation

<Upload
  beforeUpload={()=> {
    return false; }}
  onChange={e => onChangeFile(e, index)}
  onRemove={e => onRemoveFile(e, index)}
>
  <Button
    icon={<UploadOutlined />}
  >
    Upload a file
  </Button>
</Upload>

上传文件后，会出现删除图标。当我单击删除按钮时，文件不会从状态中删除。

这是 onChange 函数：

const onChangeFile = (info, index) => {
    console.log("onChange info = " + info);
    const newForm = form;
    newForm.inputs[index].value = info.file;
    setForm({
      ...form,
      from: newForm
    });
    console.log("onChange form = " + form);
};

我试过像这样使用 onRemove 函数删除它：

const onRemoveFile = (info, index) => {
   console.log("onRemove info = " + info);
   const newForm = form;
   newForm.inputs[index].value = null;
   setForm({
     ...form,
     from: newForm
   });
   console.log("onRemove form = " + form);
};

控制台日志的输出：

UI 的屏幕截图：

随意尝试antd提供的这个代码示例中的一些东西：

https://codesandbox.io/s/qj6n3?file=/index.js

Answer 1

您可以按照以下示例实现：

const normFile = (e) => {
    if (Array.isArray(e)) {
        return e;
    }
    return e && e.fileList;
};

<Form onFinish={() => {}}>
    <Form.Item
        name="tagList"
        label="Upload"
        valuePropName="list"
        getValueFromEvent={normFile}
        rules={[
            {
                required: true,
                message: 'Tag list is required',
            },
        ]}
    >
        <Upload
            beforeUpload={() => false}
            listType="picture-card"
        >
            <UploadOutlined style={{ marginRight: 5 }} />
            Upload
        </Upload>
    </Form.Item>
</Form>

antd上传组件删除文件的方法

How to delete a file in antd Upload component

javascript

reactjs

antd