我正在尝试将 Formik 与 Material-UI 文本字段一起使用。像这样:
import TextField from '@material-ui/core/TextField';
import {
Field,
FieldProps,
Form,
Formik,
FormikErrors,
FormikProps
} from 'formik';
import React, { Component } from 'react';
interface IMyFormValues {
firstName: string;
}
class CreateAgreementForm extends Component<{}> {
public render() {
return (
<div>
<h1>My Example</h1>
<Formik
initialValues={{ firstName: '' }}
// tslint:disable-next-line:jsx-no-lambda
onSubmit={(values: IMyFormValues) => alert(JSON.stringify(values))}
// tslint:disable-next-line:jsx-no-lambda
validate={(values: IMyFormValues) => {
const errors: FormikErrors<IMyFormValues> = {};
if (!values.firstName) {
errors.firstName = 'Required';
}
return errors;
}}
// tslint:disable-next-line:jsx-no-lambda
render={(formikBag: FormikProps<IMyFormValues>) => (
<Form>
<Field
name="firstName"
render={({ field, form }: FieldProps<IMyFormValues>) => (
<TextField
error={Boolean(
form.errors.firstName && form.touched.firstName
)}
helperText={
form.errors.firstName &&
form.touched.firstName &&
String(form.errors.firstName)
}
/>
)}
/>
</Form>
)}
/>
</div>
);
}
}
export default CreateAgreementForm;
我希望 Formik 负责外观的验证和 Material-UI。我想将 errors.firstName 传递给 TextField 组件,但错误显示不正确。我怎样才能修复它,这样它仍然可以清楚地阅读?我不想编写自己的 TextField 组件。