ReactJS的Typescript中的forwardRef出现问题。
我的目标是包装引导FormControl并为其提供一些简单的逻辑,然后在其上进行构建。我知道FormControl将其引用转发到输入元素。
现在如何将组件中的引用转发到FormControl正在转发的该引用。我的代码现在看起来像这样:
import React from "react";
import { Form } from 'react-bootstrap';
export type FormSimpleTextProps = {
name: string;
placeholder: string;
value: string;
updated: boolean;
editable: boolean;
onChange: (name: string, newValue: string) => void;
};
export const FormSimpleText = React.forwardRef(
(props: FormSimpleTextProps, ref: React.Ref<HTMLInputElement>) => {
const onChangeHandler = (e: React.ChangeEvent<HTMLInputElement>) => {
console.log(e);
}
return (
<Form.Control
ref={ref}
name={props.name}
value={props.value}
onChange={onChangeHandler}
className={props.updated ? "selected" : ""}
plaintext={!props.editable}
readOnly={!props.editable}
required
type="text"
placeholder={props.placeholder}
/>
);
}
);
在ref = {ref}的行中,我遇到了错误:
No overload matches this call.
Overload 1 of 2, '(props: Readonly<ReplaceProps<"input", BsPrefixProps<"input"> & FormControlProps>>): FormControl<"input">', gave the following error.
Type '((instance: HTMLInputElement | null) => void) | RefObject<HTMLInputElement> | null' is not assignable to type '(string & ((instance: HTMLInputElement | null) => void)) | (string & RefObject<HTMLInputElement>) | (((instance: FormControl<"input"> | null) => void) & ((instance: HTMLInputElement | null) => void)) | ... 4 more ... | undefined'.
Type '(instance: HTMLInputElement | null) => void' is not assignable to type '(string & ((instance: HTMLInputElement | null) => void)) | (string & RefObject<HTMLInputElement>) | (((instance: FormControl<"input"> | null) => void) & ((instance: HTMLInputElement | null) => void)) | ... 4 more ... | undefined'.
Type '(instance: HTMLInputElement | null) => void' is not assignable to type 'string & ((instance: HTMLInputElement | null) => void)'.
Type '(instance: HTMLInputElement | null) => void' is not assignable to type 'string'.
Overload 2 of 2, '(props: ReplaceProps<"input", BsPrefixProps<"input"> & FormControlProps>, context?: any): FormControl<"input">', gave the following error.
Type '((instance: HTMLInputElement | null) => void) | RefObject<HTMLInputElement> | null' is not assignable to type '(string & ((instance: HTMLInputElement | null) => void)) | (string & RefObject<HTMLInputElement>) | (((instance: FormControl<"input"> | null) => void) & ((instance: HTMLInputElement | null) => void)) | ... 4 more ... | undefined'.
Type '(instance: HTMLInputElement | null) => void' is not assignable to type '(string & ((instance: HTMLInputElement | null) => void)) | (string & RefObject<HTMLInputElement>) | (((instance: FormControl<"input"> | null) => void) & ((instance: HTMLInputElement | null) => void)) | ... 4 more ... | undefined'.
Type '(instance: HTMLInputElement | null) => void' is not assignable to type 'string & ((instance: HTMLInputElement | null) => void)'.
Type '(instance: HTMLInputElement | null) => void' is not assignable to type 'string'. TS2769
20 | return (
21 | <Form.Control
> 22 | ref={ref}
| ^
23 | name={props.name}
24 | value={props.value}
25 | onChange={onChangeHandler}
我只是无法根据错误消息弄清楚这里出了什么问题。对我来说太复杂了。有人可以帮忙这个例子吗?