Reactjs 如何使用function component和typescript将ref转发到包装的组件
我对ReactJS中Typescript中的forwardRef有问题 我的目标是包装bootstrap FormControl,并提供一些简单的逻辑,然后在此基础上构建。我知道FormControl将其引用转发到输入元素 现在,我如何将组件中的引用转发到FormControl正在转发的引用。我的代码现在如下所示:Reactjs 如何使用function component和typescript将ref转发到包装的组件,reactjs,react-bootstrap,react-forwardref,Reactjs,React Bootstrap,React Forwardref,我对ReactJS中Typescript中的forwardRef有问题 我的目标是包装bootstrap FormControl,并提供一些简单的逻辑,然后在此基础上构建。我知道FormControl将其引用转发到输入元素 现在,我如何将组件中的引用转发到FormControl正在转发的引用。我的代码现在如下所示: import React from "react"; import { Form } from 'react-bootstrap'; export type FormSimpleT
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}
/>
);
}
);
从“React”导入React;
从'react bootstrap'导入{Form};
导出类型FormSimpleTextProps={
名称:字符串;
占位符:字符串;
值:字符串;
更新:布尔;
可编辑:布尔型;
onChange:(name:string,newValue:string)=>void;
};
export const FormSimpleText=React.forwardRef(
(props:FormSimpleTextProps,ref:React.ref)=>{
const onChangeHandler=(e:React.ChangeEvent)=>{
控制台日志(e);
}
返回(
);
}
);
在ref={ref}的行中,我得到一个错误:
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}
没有与此调用匹配的重载。
重载2中的第1个'(props:Readonly):FormControl'给出了以下错误。
类型“((实例:HTMLInputElement | null)=>void)|重新对象| null”不可分配给类型“(string&((实例:HTMLInputElement | null)=>void))(string&ReObject)|(((实例:FormControl | null)=>void)&((实例:HTMLInputElement | null)=>void))|。。。4更多…|“未定义”。
Type'(实例:HTMLInputElement | null)=>void'不可分配给Type'(string&((实例:HTMLInputElement | null)=>void))(string&reObject)|(((实例:FormControl | null)=>void)和((实例:HTMLInputElement | null)=>void)|。。。4更多…|“未定义”。
类型“(实例:HTMLInputElement | null)=>void”不可分配给类型“string&((实例:HTMLInputElement | null)=>void)”。
类型“(实例:HTMLInputElement | null)=>void”不可分配给类型“string”。
重载2/2'(props:ReplaceProps,context?:any):FormControl',出现以下错误。
类型“((实例:HTMLInputElement | null)=>void)|重新对象| null”不可分配给类型“(string&((实例:HTMLInputElement | null)=>void))(string&ReObject)|(((实例:FormControl | null)=>void)&((实例:HTMLInputElement | null)=>void))|。。。4更多…|“未定义”。
Type'(实例:HTMLInputElement | null)=>void'不可分配给Type'(string&((实例:HTMLInputElement | null)=>void))(string&reObject)|(((实例:FormControl | null)=>void)和((实例:HTMLInputElement | null)=>void)|。。。4更多…|“未定义”。
类型“(实例:HTMLInputElement | null)=>void”不可分配给类型“string&((实例:HTMLInputElement | null)=>void)”。
类型“(实例:HTMLInputElement | null)=>void”不可分配给类型“string”。TS2769
20 |返回(
21 | 22 | ref={ref}
| ^
23 | name={props.name}
24 | value={props.value}
25 | onChange={onChangeHandler}
根据错误消息,我无法找出这里的错误。这对我来说太复杂了。有人能在这个示例中提供帮助吗?我可能错了,但forwardRef的类型定义看起来可疑。可以尝试使用React.forwardRef((props,ref)。。。。。