cjd-parkball/src/components/form/demo/form-in-modal.md

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---
category: 2
title: 弹出层中的新建表单
title_en: Form in Modal to Create
---

 zh-CN

当用户访问一个展示了某个列表的页面，想新建一项但又不想跳转页面时，可以用 Modal 弹出一个表单，用户填写必要信息后创建新的项。

 en-US

When user visit a page with a list of items, and want to create a new item. The page can popup a form in Modal, then let user fill in the form to create an item.

````jsx
import { Button, Modal, Form, Input, Radio } from 'parkball';

const FormItem = Form.Item;

const CollectionCreateForm = Form.create()(
  class extends React.Component {
    render() {
      const { visible, onCancel, onCreate, form } = this.props;
      const { getFieldDecorator } = form;
      return (
        <Modal
          visible={visible}
          title="Create a new collection"
          okText="Create"
          onCancel={onCancel}
          onOk={onCreate}
        >
          <Form layout="vertical">
            <FormItem label="Title">
              {getFieldDecorator('title', {
                rules: [{ required: true, message: 'Please input the title of collection!' }],
              })(
                <Input />
              )}
            </FormItem>
            <FormItem label="Description">
              {getFieldDecorator('description')(<Input type="textarea" />)}
            </FormItem>
            <FormItem className="collection-create-form_last-form-item">
              {getFieldDecorator('modifier', {
                initialValue: 'public',
              })(
                <Radio.Group>
                  <Radio value="public">Public</Radio>
                  <Radio value="private">Private</Radio>
                </Radio.Group>
              )}
            </FormItem>
          </Form>
        </Modal>
      );
    }
  }
);

class CollectionsPage extends React.Component {
  state = {
    visible: false,
  };

  showModal = () => {
    this.setState({ visible: true });
  }

  handleCancel = () => {
    this.setState({ visible: false });
  }

  handleCreate = () => {
    const form = this.formRef.props.form;
    form.validateFields((err, values) => {
      if (err) {
        return;
      }

      console.log('Received values of form: ', values);
      form.resetFields();
      this.setState({ visible: false });
    });
  }

  saveFormRef = (formRef) => {
    this.formRef = formRef;
  }

  render() {
    return (
      <div>
        <Button type="primary" onClick={this.showModal}>New Collection</Button>
        <CollectionCreateForm
          wrappedComponentRef={this.saveFormRef}
          visible={this.state.visible}
          onCancel={this.handleCancel}
          onCreate={this.handleCreate}
        />
      </div>
    );
  }
}

ReactDOM.render(<CollectionsPage />, mountNode);
````

````css
.collection-create-form_last-form-item {
  margin-bottom: 0;
}
````