Topic: use ref hooks Input component
nachomartinez30 asked 5 years ago
hi! how can i use a ref hook in a Input element?
this doesn't work:
const myRef = useRef('')
...
<MDBInput
inputRef={ref=>myRef=ref}
/>
Jakub Chmura staff premium answered 5 years ago
Hi @nachomartinez30,
You don't need to initiate ref
on input because input has already initiated a reference.
Here is a snippet.
import React from 'react';
import { MDBInput } from 'mdbreact';
const Input = props => {
return (
<MDBInput
label='My input'
name='refInput'
value='testValue'
inputRef={e => console.log(e.value)}
type='text'
icon='user'
/>
);
};
export default Input;
Best, Kuba
mbdtsmh commented 5 years ago
I believe the Typescript types for the function signature are incorrect.
inputRef?:
| RefObject<HTMLInputElement>
| ((ref: RefObject<HTMLInputElement>) => void)
| null;
So the object ref would need to be accessed via ref.current
but the type being passed appears to be HTMLInputElement
Piotr Glejzer staff commented 5 years ago
Yea, I think you are right.
behzad soleimani answered 5 years ago
Hi @nachomartinez30,
You use inputref for access to ref and ref attributes e.g tabIndex:
<MDBInput
inputRef={ref => ref.tabIndex = "1"}
type='text'
/>
Jakub Chmura staff premium commented 5 years ago
You do it wrong. You need to use a function that will be changing everything inside of it.
example:
import React from 'react';
import { MDBInput, MDBBtn } from 'mdbreact';
const InputPage = () => {
let thisIsAReference = '';
const myRefFunction = (ref) => {
thisIsAReference = ref;
};
const changeVal = () => {
thisIsAReference.value = thisIsAReference.value + '1';
};
return (
<>
<MDBInput
label='My input'
name='refInput'
value='testValue'
inputRef={myRefFunction}
type='text'
icon='user'
/>
<MDBBtn onClick={changeVal}>Change input val</MDBBtn>
</>
);
};
export default InputPage;
behzad soleimani commented 5 years ago
for tabIndex? i need a tabIndex props. only way for that is to use inputref
Jakub Chmura staff premium commented 5 years ago
You can get access to tabIndex using this ref from the example above.
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Answered
- User: Free
- Premium support: No
- Technology: MDB React
- MDB Version: 4.22.1
- Device: CPU
- Browser: Chrome
- OS: Windows
- Provided sample code: No
- Provided link: No