ant-design/components/form/demo/validate.md

# 校验提示

- order: 6

我们为表单控件定义了三种校验状态，为 `<FormItem>` 定义 `validateStatus` 属性即可。

validateStatus: ['success', 'warning', 'error', 'validating']。

另外为输入框添加反馈图标，设置 `<FormItem>` 的 `hasFeedback` 属性值为 `true` 即可。 

**注意**: 反馈图标只对 `<Input />` 有效。

---

````jsx
import {Form, Input, Datepicker, Row, Col} from "antd";
const FormItem = Form.Item;

ReactDOM.render(
  <Form horizontal>
    <FormItem
      label="失败校验："
      labelCol={{span: 5}}
      wrapperCol={{span: 12}}
      validateStatus="error"
      help="请输入数字和字母组合">
      <Input value="无效选择" id="error" />
    </FormItem>

    <FormItem
      label="警告校验："
      labelCol={{span: 5}}
      wrapperCol={{span: 12}}
      validateStatus="warning">
      <Input value="前方高能预警" id="warning" />
    </FormItem>

    <FormItem
      label="校验中："
      labelCol={{span: 5}}
      wrapperCol={{span: 12}}
      hasFeedback={true}
      validateStatus="validating"
      help="信息审核中...">
      <Input value="我是被校验的内容" id="validating" />
    </FormItem>

    <FormItem
      label="成功校验："
      labelCol={{span: 5}}
      wrapperCol={{span: 12}}
      hasFeedback={true}
      validateStatus="success">
      <Input value="我是正文" id="success" />
    </FormItem>

    <FormItem
      label="警告校验："
      labelCol={{span: 5}}
      wrapperCol={{span: 12}}
      hasFeedback={true}
      validateStatus="warning">
      <Input value="前方高能预警" id="warning" />
    </FormItem>

    <FormItem
      label="失败校验："
      labelCol={{span: 5}}
      wrapperCol={{span: 12}}
      hasFeedback={true}
      validateStatus="error"
      help="请输入数字和字母组合">
      <Input value="无效选择" id="error" />
    </FormItem>

    <FormItem
      label="Datepicker 失败："
      labelCol={{span: 5}}
      validateStatus="error">
      <Col span="6">
        <Datepicker />
      </Col>
      <Col span="1">
        <p className="ant-form-split">-</p>
      </Col>
      <Col span="6">
        <Datepicker />
      </Col>
      <Col span="19" offset="5">
        <p className="ant-form-explain">请输入正确选项</p>
      </Col>
    </FormItem>
  </Form>
, document.getElementById('components-form-demo-validate'));
````