Questions tagged [controlled-component]

89 questions
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React Input type not able to insert any data

In my React component I have used input type; but somehow it is not going to to editable anyhow. I have checked this post as well but not able to trace the solution. const Index = ({ const [editable, setEditable] = useState(false) const [email,…
TMA
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Multi-nested controlled components React

I am trying to find a better way to handle all of my survey data at once. Able to have the components controlled is a good idea but I dont know if it is good practice to try to control them this way or I am just approaching this the wrong way. This…
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When using set state hooks in a text input field, React thinks I'm changing the value to undefined

So I'm running a pretty standard input form in one of my components called Start which feeds to App where it asks for the player's name. This uses React hooks to initialize a state, then changes the state onChange. import React, {useState} from…
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Not able to see typed text in input using react hooks and controlled components

//The value coming from the input that triggered the event is getting updated in the state but not displaying in the browser, I don't really understand what's happening, I have been using the same method to update the state in my other…
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How to get multiple input fields's values in use state hook

I'm getting an error while controlling an input field which is : "A component is changing an uncontrolled input to be controlled. This is likely caused by the value changing from undefined to a defined value..." and when I try to write something in…
Saadi
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Warning: A component is changing an uncontrolled input to be controlled (useEffect) Reactjs

export default function CitySearch() { const defaultCity = "London"; const [city, setCity] = useState(defaultCity); const address = useSelector((state) => state?.cityDetails?.city); const classes = useStyles(); const handleOnChange = (e)…
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Re-usable input file with react-hook-form logic

I'm trying to build a reusable input file as per below. function InputFileControl({ control, name, initialValue, ...rest }) { const { field: { ref, ...inputProps }, fieldState: { invalid, error, isTouched }, } = useController({ …
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React Controlled Component

import React, { useState } from "react"; function App() { const [name, setName] = useState(""); const [headingText, setHeadingText] = useState(""); function handleChange(event) { // console.log(event.target.value); …
rv7
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Derive Input Value Attribute from Iterating through state Maps keys

I'm iterating through keys of a Maps object using a spread operator and would like to know how to derive the value from state. const [data, setData] = useState( new Map( Object.entries({ datapoint1: "", datapoint2: "", …
Ibra
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Warning while using Select component without any value

I have and Select and MenuItem components used in the code as follows:
Q3.Is this the correct data?
Tan
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Why can't I properly update nested state in React?

In this example below, I want to reset the input field back to an empty string after clicking submit: https://codesandbox.io/s/todo-app-object-vk99c Form.js: class Form extends Component { state = { todo: { name: "" } // inputValue: "" …
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react controlled input component with local and redux state, how to manage

I have a controlled input component with some action on the value which is passed to local and redux state. At the moment on the onchange event im calling a function which "clean up" the value and then it send it to the local state and also send it…
junray
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MUI Datepicker onChange event working with manual input but not when clicking date

I've been toying around with this for a while to no avail. When the user inputs a date manually into the text field, that onChange event fires and everything works as I want it to. When the user clicks on a date from from datepicker, nothing at all…
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On Component Re-rendering, input file with value not working

I'm using controlled Input with type file in React Component. If I selected one file in input component and toggling show/hide behavior of main component. On Component re-renders input is not working and throwing below error: Uncaught DOMException:…
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Warning: A component is changing a controlled input of type undefined to be uncontrolled

I got the following warning when using controlled components, despite having set the initial states: Warning: A component is changing a controlled input of type undefined to be uncontrolled. Input elements should not switch from controlled to…
Bayu
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