Form表单

高性能表单控件，自带数据域管理。包含数据录入、校验以及对应样式。

何时使用

• 用于创建一个实体或收集信息。

• 需要对输入的数据类型进行校验时。

代码演示

基本使用

基本的表单数据域控制展示，包含布局、初始化、验证、提交。

TypeScriptJavaScript

import { Form, Input, Button, Checkbox } from 'antd';
const layout = {
  labelCol: { span: 8 },
  wrapperCol: { span: 16 },
};
const tailLayout = {
  wrapperCol: { offset: 8, span: 16 },
};
const Demo = () => {
  const onFinish = values => {
    console.log('Success:', values);
  };
  const onFinishFailed = errorInfo => {
    console.log('Failed:', errorInfo);
  };
  return (
    <Form
      {...layout}
      name="basic"
      initialValues={{ remember: true }}
      onFinish={onFinish}
      onFinishFailed={onFinishFailed}
    >
      <Form.Item
        label="Username"
        name="username"
        rules={[{ required: true, message: 'Please input your username!' }]}
      >
        <Input />
      </Form.Item>
      <Form.Item
        label="Password"
        name="password"
        rules={[{ required: true, message: 'Please input your password!' }]}
      >
        <Input.Password />
      </Form.Item>
      <Form.Item {...tailLayout} name="remember" valuePropName="checked">
        <Checkbox>Remember me</Checkbox>
      </Form.Item>
      <Form.Item {...tailLayout}>
        <Button type="primary" htmlType="submit">
          Submit
        </Button>
      </Form.Item>
    </Form>
  );
};
ReactDOM.render(<Demo />, mountNode);

表单方法调用

通过 Form.useForm 对表单数据域进行交互。

注意 useForm 是 React Hooks 的实现，只能用于函数组件，class 组件请查看下面的例子。

TypeScriptJavaScript

import { Form, Input, Button, Select } from 'antd';
const { Option } = Select;
const layout = {
  labelCol: { span: 8 },
  wrapperCol: { span: 16 },
};
const tailLayout = {
  wrapperCol: { offset: 8, span: 16 },
};
const Demo = () => {
  const [form] = Form.useForm();
  const onGenderChange = value => {
    switch (value) {
      case "male":
        form.setFieldsValue({ note: "Hi, man!" });
        return;
      case "female":
        form.setFieldsValue({ note: "Hi, lady!" });
        return;
      case "other":
        form.setFieldsValue({ note: "Hi there!" });
        return;
    }
  };
  const onFinish = values => {
    console.log(values);
  };
  const onReset = () => {
    form.resetFields();
  };
  const onFill = () => {
    form.setFieldsValue({
      note: 'Hello world!',
      gender: 'male',
    });
  };
  return (
    <Form {...layout} form={form} name="control-hooks" onFinish={onFinish}>
      <Form.Item name="note" label="Note" rules={[{ required: true }]}>
        <Input />
      </Form.Item>
      <Form.Item name="gender" label="Gender" rules={[{ required: true }]}>
        <Select
          placeholder="Select a option and change input text above"
          onChange={onGenderChange}
          allowClear
        >
          <Option value="male">male</Option>
          <Option value="female">female</Option>
          <Option value="other">other</Option>
        </Select>
      </Form.Item>
      <Form.Item
        noStyle
        shouldUpdate={(prevValues, currentValues) => prevValues.gender !== currentValues.gender}
      >
        {({ getFieldValue }) => {
          return getFieldValue('gender') === 'other' ? (
            <Form.Item name="customizeGender" label="Customize Gender" rules={[{ required: true }]}>
              <Input />
            </Form.Item>
          ) : null;
        }}
      </Form.Item>
      <Form.Item {...tailLayout}>
        <Button type="primary" htmlType="submit">
          Submit
        </Button>
        <Button htmlType="button" onClick={onReset}>
          Reset
        </Button>
        <Button type="link" htmlType="button" onClick={onFill}>
          Fill form
        </Button>
      </Form.Item>
    </Form>
  );
};
ReactDOM.render(<Demo />, mountNode);

#components-form-demo-control-hooks .ant-btn {
  margin-right: 8px;
}

表单方法调用（Class component）

我们推荐使用 Form.useForm 创建表单数据域进行控制。如果是在 class component 下，你也可以通过 ref 获取数据域。

TypeScriptJavaScript

import { Form, Input, Button, Select } from 'antd';
import { FormInstance } from 'antd/lib/form';
const { Option } = Select;
const layout = {
  labelCol: { span: 8 },
  wrapperCol: { span: 16 },
};
const tailLayout = {
  wrapperCol: { offset: 8, span: 16 },
};
class Demo extends React.Component {
  formRef = React.createRef<FormInstance>();
  onGenderChange = value => {
    this.formRef.current.setFieldsValue({
      note: `Hi, ${value === 'male' ? 'man' : 'lady'}!`,
    });
  };
  onFinish = values => {
    console.log(values);
  };
  onReset = () => {
    this.formRef.current.resetFields();
  };
  onFill = () => {
    this.formRef.current.setFieldsValue({
      note: 'Hello world!',
      gender: 'male',
    });
  };
  render() {
    return (
      <Form {...layout} ref={this.formRef} name="control-ref" onFinish={this.onFinish}>
        <Form.Item name="note" label="Note" rules={[{ required: true }]}>
          <Input />
        </Form.Item>
        <Form.Item name="gender" label="Gender" rules={[{ required: true }]}>
          <Select
            placeholder="Select a option and change input text above"
            onChange={this.onGenderChange}
            allowClear
          >
            <Option value="male">male</Option>
            <Option value="female">female</Option>
            <Option value="other">other</Option>
          </Select>
        </Form.Item>
        <Form.Item
          noStyle
          shouldUpdate={(prevValues, currentValues) => prevValues.gender !== currentValues.gender}
        >
          {({ getFieldValue }) => {
            return getFieldValue('gender') === 'other' ? (
              <Form.Item
                name="customizeGender"
                label="Customize Gender"
                rules={[{ required: true }]}
              >
                <Input />
              </Form.Item>
            ) : null;
          }}
        </Form.Item>
        <Form.Item {...tailLayout}>
          <Button type="primary" htmlType="submit">
            Submit
          </Button>
          <Button htmlType="button" onClick={this.onReset}>
            Reset
          </Button>
          <Button type="link" htmlType="button" onClick={this.onFill}>
            Fill form
          </Button>
        </Form.Item>
      </Form>
    );
  }
}
ReactDOM.render(<Demo />, mountNode);

#components-form-demo-control-ref .ant-btn {
  margin-right: 8px;
}

表单布局

表单有三种布局。

TypeScriptJavaScript

import React, { useState } from 'react';
import { Form, Input, Button, Radio } from 'antd';
const FormLayoutDemo = () => {
  const [form] = Form.useForm();
  const [formLayout, setFormLayout] = useState('horizontal');
  const onFormLayoutChange = ({ layout }) => {
    setFormLayout(layout);
  };
  const formItemLayout =
    formLayout === 'horizontal'
      ? {
          labelCol: { span: 4 },
          wrapperCol: { span: 14 },
        }
      : null;
  const buttonItemLayout =
    formLayout === 'horizontal'
      ? {
          wrapperCol: { span: 14, offset: 4 },
        }
      : null;
  return (
    <div>
      <Form
        {...formItemLayout}
        layout={formLayout}
        form={form}
        initialValues={{ layout: formLayout }}
        onValuesChange={onFormLayoutChange}
      >
        <Form.Item label="Form Layout" name="layout">
          <Radio.Group value={formLayout}>
            <Radio.Button value="horizontal">Horizontal</Radio.Button>
            <Radio.Button value="vertical">Vertical</Radio.Button>
            <Radio.Button value="inline">Inline</Radio.Button>
          </Radio.Group>
        </Form.Item>
        <Form.Item label="Field A">
          <Input placeholder="input placeholder" />
        </Form.Item>
        <Form.Item label="Field B">
          <Input placeholder="input placeholder" />
        </Form.Item>
        <Form.Item {...buttonItemLayout}>
          <Button type="primary">Submit</Button>
        </Form.Item>
      </Form>
    </div>
  );
};
ReactDOM.render(<FormLayoutDemo />, mountNode);

表单尺寸

设置表单组件尺寸，仅对 antd 组件有效。

TypeScriptJavaScript

import React, { useState } from 'react';
import {
  Form,
  Input,
  Button,
  Radio,
  Select,
  Cascader,
  DatePicker,
  InputNumber,
  TreeSelect,
  Switch,
} from 'antd';
const FormSizeDemo = () => {
  const [componentSize, setComponentSize] = useState('small');
  const onFormLayoutChange = ({ size }) => {
    setComponentSize(size);
  };
  return (
    <div>
      <Form
        labelCol={{ span: 4 }}
        wrapperCol={{ span: 14 }}
        layout="horizontal"
        initialValues={{ size: componentSize }}
        onValuesChange={onFormLayoutChange}
        size={componentSize}
      >
        <Form.Item label="Form Size" name="size">
          <Radio.Group>
            <Radio.Button value="small">Small</Radio.Button>
            <Radio.Button value="middle">Middle</Radio.Button>
            <Radio.Button value="large">Large</Radio.Button>
          </Radio.Group>
        </Form.Item>
        <Form.Item label="Input">
          <Input />
        </Form.Item>
        <Form.Item label="Select">
          <Select>
            <Select.Option value="demo">Demo</Select.Option>
          </Select>
        </Form.Item>
        <Form.Item label="TreeSelect">
          <TreeSelect
            treeData={[
              { title: 'Light', value: 'light', children: [{ title: 'Bamboo', value: 'bamboo' }] },
            ]}
          />
        </Form.Item>
        <Form.Item label="Cascader">
          <Cascader
            options={[
              {
                value: 'zhejiang',
                label: 'Zhejiang',
                children: [
                  {
                    value: 'hangzhou',
                    label: 'Hangzhou',
                  },
                ],
              },
            ]}
          />
        </Form.Item>
        <Form.Item label="DatePicker">
          <DatePicker />
        </Form.Item>
        <Form.Item label="InputNumber">
          <InputNumber />
        </Form.Item>
        <Form.Item label="Switch">
          <Switch />
        </Form.Item>
        <Form.Item label="Button">
          <Button>Button</Button>
        </Form.Item>
      </Form>
    </div>
  );
};
ReactDOM.render(<FormSizeDemo />, mountNode);

动态增减表单项

动态增加、减少表单项。

import { Form, Input, Button } from 'antd';
import { MinusCircleOutlined, PlusOutlined } from '@ant-design/icons';
const formItemLayout = {
  labelCol: {
    xs: { span: 24 },
    sm: { span: 4 },
  },
  wrapperCol: {
    xs: { span: 24 },
    sm: { span: 20 },
  },
};
const formItemLayoutWithOutLabel = {
  wrapperCol: {
    xs: { span: 24, offset: 0 },
    sm: { span: 20, offset: 4 },
  },
};
const DynamicFieldSet = () => {
  const onFinish = values => {
    console.log('Received values of form:', values);
  };
  return (
    <Form name="dynamic_form_item" {...formItemLayoutWithOutLabel} onFinish={onFinish}>
      <Form.List name="names">
        {(fields, { add, remove }) => {
          return (
            <div>
              {fields.map((field, index) => (
                <Form.Item
                  {...(index === 0 ? formItemLayout : formItemLayoutWithOutLabel)}
                  label={index === 0 ? 'Passengers' : ''}
                  required={false}
                  key={field.key}
                >
                  <Form.Item
                    {...field}
                    validateTrigger={['onChange', 'onBlur']}
                    rules={[
                      {
                        required: true,
                        whitespace: true,
                        message: "Please input passenger's name or delete this field.",
                      },
                    ]}
                    noStyle
                  >
                    <Input placeholder="passenger name" style={{ width: '60%' }} />
                  </Form.Item>
                  {fields.length > 1 ? (
                    <MinusCircleOutlined
                      className="dynamic-delete-button"
                      style={{ margin: '0 8px' }}
                      onClick={() => {
                        remove(field.name);
                      }}
                    />
                  ) : null}
                </Form.Item>
              ))}
              <Form.Item>
                <Button
                  type="dashed"
                  onClick={() => {
                    add();
                  }}
                  style={{ width: '60%' }}
                >
                  <PlusOutlined /> Add field
                </Button>
              </Form.Item>
            </div>
          );
        }}
      </Form.List>
      <Form.Item>
        <Button type="primary" htmlType="submit">
          Submit
        </Button>
      </Form.Item>
    </Form>
  );
};
ReactDOM.render(<DynamicFieldSet />, mountNode);

.dynamic-delete-button {
  cursor: pointer;
  position: relative;
  top: 4px;
  font-size: 24px;
  color: #999;
  transition: all 0.3s;
}
.dynamic-delete-button:hover {
  color: #777;
}
.dynamic-delete-button[disabled] {
  cursor: not-allowed;
  opacity: 0.5;
}

动态增减嵌套字段

嵌套表单字段需要对 field 进行拓展，将 field.name 和 field.fieldKey 应用于控制字段。

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

嵌套结构与校验信息

name 属性支持嵌套数据结构。通过 validateMessages 或 message 自定义校验信息模板，模板内容可参考此处。

TypeScriptJavaScript

import { Form, Input, InputNumber, Button } from 'antd';
const layout = {
  labelCol: { span: 8 },
  wrapperCol: { span: 16 },
};
const validateMessages = {
  required: '${label} is required!',
  types: {
    email: '${label} is not validate email!',
    number: '${label} is not a validate number!',
  },
  number: {
    range: '${label} must be between ${min} and ${max}',
  },
};
const Demo = () => {
  const onFinish = values => {
    console.log(values);
  };
  return (
    <Form {...layout} name="nest-messages" onFinish={onFinish} validateMessages={validateMessages}>
      <Form.Item name={['user', 'name']} label="Name" rules={[{ required: true }]}>
        <Input />
      </Form.Item>
      <Form.Item name={['user', 'email']} label="Email" rules={[{ type: 'email' }]}>
        <Input />
      </Form.Item>
      <Form.Item name={['user', 'age']} label="Age" rules={[{ type: 'number', min: 0, max: 99 }]}>
        <InputNumber />
      </Form.Item>
      <Form.Item name={['user', 'website']} label="Website">
        <Input />
      </Form.Item>
      <Form.Item name={['user', 'introduction']} label="Introduction">
        <Input.TextArea />
      </Form.Item>
      <Form.Item wrapperCol={{ ...layout.wrapperCol, offset: 8 }}>
        <Button type="primary" htmlType="submit">
          Submit
        </Button>
      </Form.Item>
    </Form>
  );
};
ReactDOM.render(<Demo />, mountNode);

复杂一点的控件

这里演示 Form.Item 内有多个元素的使用方式。<Form.Item name="field" /> 只会对它的直接子元素绑定表单功能，例如直接包裹了 Input/Select。如果控件前后还有一些文案或样式装点，或者一个表单项内有多个控件，你可以使用内嵌的 Form.Item 完成。你可以给 Form.Item 自定义 style 进行内联布局，或者添加 noStyle 作为纯粹的无样式绑定组件（类似 3.x 中的 getFieldDecorator）。

- <Form.Item label="Field" name="field">
-   <Input />
- </Form.Item>
+ <Form.Item label="Field">
+   <Form.Item name="field" noStyle><Input /></Form.Item> // 直接包裹才会绑定表单
+   <span>description</span>
+ </Form.Item>

这里展示了三种典型场景：

• Username：输入框后面有描述文案或其他组件，在 Form.Item 内使用 <Form.Item name="field" noStyle /> 去绑定对应子控件。

• Address：有两个控件，在 Form.Item 内使用两个 <Form.Item name="field" noStyle /> 分别绑定对应控件。

• BirthDate：有两个内联控件，错误信息展示各自控件下，使用两个 <Form.Item name="field" /> 分别绑定对应控件，并修改 style 使其内联布局。

注意，在 label 对应的 Form.Item 上不要在指定 name 属性，这个 Item 只作为布局作用。

更复杂的封装复用方式可以参考下面的 自定义表单控件 演示。

import { Form, Input, Select, Tooltip, Button } from 'antd';
const { Option } = Select;
const Demo = () => {
  const onFinish = values => {
    console.log('Received values of form: ', values);
  };
  return (
    <Form name="complex-form" onFinish={onFinish} labelCol={{ span: 8 }} wrapperCol={{ span: 16 }}>
      <Form.Item label="Username">
        <Form.Item
          name="username"
          noStyle
          rules={[{ required: true, message: 'Username is required' }]}
        >
          <Input style={{ width: 160 }} placeholder="Please input" />
        </Form.Item>
        <Tooltip title="Useful information">
          <a href="#API" style={{ margin: '0 8px' }}>
            Need Help?
          </a>
        </Tooltip>
      </Form.Item>
      <Form.Item label="Address">
        <Input.Group compact>
          <Form.Item
            name={['address', 'province']}
            noStyle
            rules={[{ required: true, message: 'Province is required' }]}
          >
            <Select placeholder="Select province">
              <Option value="Zhejiang">Zhejiang</Option>
              <Option value="Jiangsu">Jiangsu</Option>
            </Select>
          </Form.Item>
          <Form.Item
            name={['address', 'street']}
            noStyle
            rules={[{ required: true, message: 'Street is required' }]}
          >
            <Input style={{ width: '50%' }} placeholder="Input street" />
          </Form.Item>
        </Input.Group>
      </Form.Item>
      <Form.Item label="BirthDate" style={{ marginBottom: 0 }}>
        <Form.Item
          name="year"
          rules={[{ required: true }]}
          style={{ display: 'inline-block', width: 'calc(50% - 8px)' }}
        >
          <Input placeholder="Input birth year" />
        </Form.Item>
        <Form.Item
          name="month"
          rules={[{ required: true }]}
          style={{ display: 'inline-block', width: 'calc(50% - 8px)', margin: '0 8px' }}
        >
          <Input placeholder="Input birth month" />
        </Form.Item>
      </Form.Item>
      <Form.Item label=" " colon={false}>
        <Button type="primary" htmlType="submit">
          Submit
        </Button>
      </Form.Item>
    </Form>
  );
};
ReactDOM.render(<Demo />, mountNode);

自定义表单控件

自定义或第三方的表单控件，也可以与 Form 组件一起使用。只要该组件遵循以下的约定：

• 提供受控属性 value 或其它与 valuePropName 的值同名的属性。

• 提供 onChange 事件或 trigger 的值同名的事件。

TypeScriptJavaScript

import React, { useState } from 'react';
import { Form, Input, Select, Button } from 'antd';
const { Option } = Select;
interface PriceValue {
  number?: number;
  currency?: 'rmb' | 'dollar';
}
interface PriceInputProps {
  value?: PriceValue;
  onChange?: (value: PriceValue) => void;
}
const PriceInput: React.FC<PriceInputProps> = ({ value = {}, onChange }) => {
  const [number, setNumber] = useState(0);
  const [currency, setCurrency] = useState('rmb');
  const triggerChange = changedValue => {
    if (onChange) {
      onChange({ number, currency, ...value, ...changedValue });
    }
  };
  const onNumberChange = e => {
    const newNumber = parseInt(e.target.value || 0, 10);
    if (Number.isNaN(number)) {
      return;
    }
    if (!('number' in value)) {
      setNumber(newNumber);
    }
    triggerChange({ number: newNumber });
  };
  const onCurrencyChange = newCurrency => {
    if (!('currency' in value)) {
      setCurrency(newCurrency);
    }
    triggerChange({ currency: newCurrency });
  };
  return (
    <span>
      <Input
        type="text"
        value={value.number || number}
        onChange={onNumberChange}
        style={{ width: 100 }}
      />
      <Select
        value={value.currency || currency}
        style={{ width: 80, margin: '0 8px' }}
        onChange={onCurrencyChange}
      >
        <Option value="rmb">RMB</Option>
        <Option value="dollar">Dollar</Option>
      </Select>
    </span>
  );
};
const Demo = () => {
  const onFinish = values => {
    console.log('Received values from form: ', values);
  };
  const checkPrice = (rule, value) => {
    if (value.number > 0) {
      return Promise.resolve();
    }
    return Promise.reject('Price must be greater than zero!');
  };
  return (
    <Form
      name="customized_form_controls"
      layout="inline"
      onFinish={onFinish}
      initialValues={{
        price: {
          number: 0,
          currency: 'rmb',
        },
      }}
    >
      <Form.Item name="price" label="Price" rules={[{ validator: checkPrice }]}>
        <PriceInput />
      </Form.Item>
      <Form.Item>
        <Button type="primary" htmlType="submit">
          Submit
        </Button>
      </Form.Item>
    </Form>
  );
};
ReactDOM.render(<Demo />, mountNode);

表单数据存储于上层组件

通过 onFieldsChange 和 fields，可以把表单的数据存储到上层组件或者 Redux、dva 中，更多可参考 rc-field-form 示例。

注意： 将表单数据存储于外部容器并非好的实践，如无必要请避免使用。

TypeScriptJavaScript

import React, { useState } from 'react';
import { Form, Input } from 'antd';
interface FieldData {
  name: string[];
  value: any;
  touched: boolean;
  validating: boolean;
  errors: string[];
}
interface CustomizedFormProps {
  onChange: (fields: FieldData[]) => void;
  fields: FieldData[];
}
const CustomizedForm: React.FC<CustomizedFormProps> = ({ onChange, fields }) => {
  return (
    <Form
      name="global_state"
      layout="inline"
      fields={fields}
      onFieldsChange={(changedFields, allFields) => {
        onChange(allFields);
      }}
    >
      <Form.Item
        name="username"
        label="Username"
        rules={[{ required: true, message: 'Username is required!' }]}
      >
        <Input />
      </Form.Item>
    </Form>
  );
};
const Demo = () => {
  const [fields, setFields] = useState([{ name: ['username'], value: 'Ant Design' }]);
  return (
    <div>
      <CustomizedForm
        fields={fields}
        onChange={newFields => {
          setFields(newFields);
        }}
      />
      <pre className="language-bash">{JSON.stringify(fields, null, 2)}</pre>
    </div>
  );
};
ReactDOM.render(<Demo />, mountNode);

多表单联动

通过 Form.Provider 在表单间处理数据。本例子中，Modal 的确认按钮在 Form 之外，通过 form.submit 方法调用表单提交功能。反之，则推荐使用 <Button htmlType="submit" /> 调用 web 原生提交逻辑。

TypeScriptJavaScript

import React, { useState, useEffect, useRef } from 'react';
import { Form, Input, InputNumber, Modal, Button, Avatar, Typography } from 'antd';
import { SmileOutlined, UserOutlined } from '@ant-design/icons';
const layout = {
  labelCol: { span: 8 },
  wrapperCol: { span: 16 },
};
const tailLayout = {
  wrapperCol: { offset: 8, span: 16 },
};
interface ModalFormProps {
  visible: boolean;
  onCancel: () => void;
}
// reset form fields when modal is form, closed
const useResetFormOnCloseModal = ({ form, visible }) => {
  const prevVisibleRef = useRef();
  useEffect(() => {
    prevVisibleRef.current = visible;
  }, [visible]);
  const prevVisible = prevVisibleRef.current;
  useEffect(() => {
    if (!visible && prevVisible) {
      form.resetFields();
    }
  }, [visible]);
};
const ModalForm: React.FC<ModalFormProps> = ({ visible, onCancel }) => {
  const [form] = Form.useForm();
  useResetFormOnCloseModal({
    form,
    visible,
  });
  const onOk = () => {
    form.submit();
  };
  return (
    <Modal title="Basic Drawer" visible={visible} onOk={onOk} onCancel={onCancel}>
      <Form form={form} layout="vertical" name="userForm">
        <Form.Item name="name" label="User Name" rules={[{ required: true }]}>
          <Input />
        </Form.Item>
        <Form.Item name="age" label="User Age" rules={[{ required: true }]}>
          <InputNumber />
        </Form.Item>
      </Form>
    </Modal>
  );
};
const Demo = () => {
  const [visible, setVisible] = useState(false);
  const showUserModal = () => {
    setVisible(true);
  };
  const hideUserModal = () => {
    setVisible(false);
  };
  const onFinish = values => {
    console.log('Finish:', values);
  };
  return (
    <div>
      <Form.Provider
        onFormFinish={(name, { values, forms }) => {
          if (name === 'userForm') {
            const { basicForm } = forms;
            const users = basicForm.getFieldValue('users') || [];
            basicForm.setFieldsValue({ users: [...users, values] });
            setVisible(false);
          }
        }}
      >
        <Form {...layout} name="basicForm" onFinish={onFinish}>
          <Form.Item name="group" label="Group Name" rules={[{ required: true }]}>
            <Input />
          </Form.Item>
          <Form.Item
            label="User List"
            shouldUpdate={(prevValues, curValues) => prevValues.users !== curValues.users}
          >
            {({ getFieldValue }) => {
              const users = getFieldValue('users') || [];
              return users.length ? (
                <ul>
                  {users.map((user, index) => (
                    <li key={index} className="user">
                      <Avatar icon={<UserOutlined />} />
                      {user.name} - {user.age}
                    </li>
                  ))}
                </ul>
              ) : (
                <Typography.Text className="ant-form-text" type="secondary">
                  ( <SmileOutlined /> No user yet. )
                </Typography.Text>
              );
            }}
          </Form.Item>
          <Form.Item {...tailLayout}>
            <Button htmlType="submit" type="primary">
              Submit
            </Button>
            <Button htmlType="button" style={{ margin: '0 8px' }} onClick={showUserModal}>
              Add User
            </Button>
          </Form.Item>
        </Form>
        <ModalForm visible={visible} onCancel={hideUserModal} />
      </Form.Provider>
    </div>
  );
};
ReactDOM.render(<Demo />, mountNode);

#components-form-demo-form-context .user {
  margin-bottom: 8px;
}
#components-form-demo-form-context .user .ant-avatar {
  margin-right: 8px;
}