React Hooks + TypeScript + Ant Design -------------表单动态增减实现

官方地址：https://ant.design/components/form-cn/#components-form-demo-dynamic-form-item

基础Demo

import { Form, Input, Button, Space } from 'antd';
import { MinusCircleOutlined, PlusOutlined } from '@ant-design/icons';

const Demo = () => {
  const onFinish = values => {
    console.log('Received values of form:', values);
  };

  return (
    <Form name="dynamic_form_nest_item" onFinish={onFinish} autoComplete="off">
      <Form.List name="users">
        {(fields, { add, remove }) => (
          <>
            {fields.map(({ key, name, fieldKey, ...restField }) => (
              <Space key={key} style={{ display: 'flex', marginBottom: 8 }} align="baseline">
                <Form.Item
                  {...restField}
                  name={[name, 'first']}
                  fieldKey={[fieldKey, 'first']}
                  rules={[{ required: true, message: 'Missing first name' }]}
                >
                  <Input placeholder="First Name" />
                </Form.Item>
                <Form.Item
                  {...restField}
                  name={[name, 'last']}
                  fieldKey={[fieldKey, 'last']}
                  rules={[{ required: true, message: 'Missing last name' }]}
                >
                  <Input placeholder="Last Name" />
                </Form.Item>
                <MinusCircleOutlined onClick={() => remove(name)} />
              </Space>
            ))}
            <Form.Item>
              <Button type="dashed" onClick={() => add()} block icon={<PlusOutlined />}>
                Add field
              </Button>
            </Form.Item>
          </>
        )}
      </Form.List>
      <Form.Item>
        <Button type="primary" htmlType="submit">
          Submit
        </Button>
      </Form.Item>
    </Form>
  );
};

ReactDOM.render(<Demo />, mountNode);
           

值

得到值的格式见上图，再组装为需求的格式

用法

常用函数

• add : 新增一项

  add(参数一，参数二)

  参数一：defaultValue ，即默认值

  参数二: insertIndex，新增的坐标。0为最上面，不填即为按顺序向下增加

  -move: 移动某一项

  move(参数一，参数二)

  参数一：from ，即把谁移动，填写坐标

  参数二: to，移动到哪里，填写坐标

• remove: 删除某一项或某几项

  remove(参数一)

  参数一：index ，即把谁删除，填写坐标或坐标集合