Okay, so in my code, I have these two radio inputs, one with a fixed value, one with an input-field to take the dynamic value.
Now what I wanted to do is, when the user enters value in the input field, the corresponding radio button will get selected automatically, and the values will get updated as well. and if the user selects the default value, the state will get updated with the default value.
My code looks like this..
<ul className='list-unstyled mb-0 d-flex flex-column flex-lg-row justify-content-around'>
<li className='mr-4'>
<input
defaultChecked
onChange={() => updateState('timeLimit',defaultTime)}
type="radio"
value={defaultTime}
name='time'
className='mr-2'
id="defaultTime"/>
<label htmlFor="defaultTime"> {defaultTime} Mins. (default)</label>
</li>
<li>
<input
onChange={(e) => updateState('timeLimit',e.target.value)}
type="radio"
name='time'
value={customTime}
ref={customTimeRef}
className='mr-2'
id="customTime"/>
<label htmlFor="customTime">
<input
onChange={(e) => updateCustomTime(e.target.value)}
style={{outline:'none', border:'none',width:'9rem'}}
placeholder='Enter Your Time'
min='0'
className='border-bottom border-info pl-2 pb-1'
type="number"/> Mins. (custom)
</label>
</li>
</ul>
The functions are defined as
const updateCustomTime = (val) => {
if(customTimeRef.current.checked){
setCustomTime(val)
updateState('timeLiimit',val)
}
else{
customTimeRef.current.checked=true
setCustomTime(val)
updateState('timeLiimit',val)
}
}
Now the issue is, when I type into my input field, the updateState function is fired, the radio gets checked, but if I click on the radio buttons afterwards, they aren't firing the onchange events associated.
What's wrong here ? And how to achieve the desired result ??
Check this component
use a boolean state to set the checked property
const App = () => {
const [useDefault, setUseDefault] = React.useState(true)
return (
<div>
<div>
<input type="radio" name="time" checked={useDefault} onClick={() => setUseDefault(true)} />
</div>
<div>
<input type="radio" name="time" checked={!useDefault} />
<input type="text" onKeyUp={() => setUseDefault(false)} />
</div>
</div>
)
}
ReactDOM.render(
<App />,
document.getElementById('root')
);
Related
Unable to Check/Un-check custom checkbox.
Explanation: On commenting out dispaly:none I can view, check, uncheck the blue checkbox. But the custom Checkbox cannot be checked or unchecked.
This is the expected output where the blue checkbox is not displayed. However having problem to check or uncheck the custom checkboxes. Your help is appreciated. Thank you.
Like you already did with the input type checkbox for the onChange event, you should include the click event handler also for the labels performing the same action:
onClick={handleSelectAll} on the first label
onClick={() => onClickDOP(day)} on the other labels
suggestionsListComponent = (
<ul>
<li>
<Checkbox checked={selectAll} onChange={handleSelectAll} />
<label
className="custom-checkbox-label"
onClick={handleSelectAll}> <--------
All
</label>
</li>
{filteredSuggestions.map((day: any, index: any) => {
return (
<li key={day.id}>
<input
type="checkbox"
className=""
name={day?.name}
value={day?.name}
checked={day.active}
onChange={() => onClickDOP(day)}
/>
<label
className="custom-checkbox-label"
onClick={() => onClickDOP(day)} <--------
>
{day?.name}
</label>
</li>
);
})}
</ul>
);
I would like to only be able to select a single checkbox and not all or more than one. I would like to use checkbox instead of radio because I can disable it without having to mark another radio
<C.SingleCard>
<h2>Pizza</h2>
<div>
<hr />
<h3>Flavors</h3>
<hr />
</div>
<div>
<h4>Pepperoni</h4>
<input type="checkbox" name='flavor' />
</div>
<div>
<h4>Chicken</h4>
<input type="checkbox" name='flavor' />
</div>
<div>
<h4>Bacon</h4>
<input type="checkbox" name='flavor' />
</div>
<div>
<button>Add</button>
</div>
</C.SingleCard>
Here's the simplest way I can think of:
Put the options in an array and just keep track of the selected index. Set the index to null if the user selected the same index. Use the index parameter of map to set checked=true on the selected box. The onChange callback will trigger when the user selects one of the boxes, you can ignore the event parameter and just pass the index of the box.
const options = ['pepperoni', 'chicken', 'bacon'];
export default function App() {
const [selected, setSelected] = useState(null);
function onChange(i) {
setSelected((prev) => (i === prev ? null : i));
}
function whatDidIPick() {
console.log(options[selected] || 'nothing');
}
return (
<div>
{options.map((o, i) => (
<label key={i}>
{o}
<input
type="checkbox"
checked={i === selected}
onChange={() => onChange(i)}
/>
</label>
))}
<br />
<button onClick={whatDidIPick}>Log what I picked</button>
</div>
);
}
https://stackblitz.com/edit/react-ts-1uwfcq?file=App.tsx
I have a checkbox filters. The problem is that I need to display all checked checkbox label (e.g. if clicked Vimeo there should be a <h1> with Vimeo filter applied).
const checkboxTarget = ['Dailymotion', 'Vimeo', 'VK']
{checkboxTarget.map((text, index) => (
<div>
<input type="checkbox" id="flexCheckIndeterminate" />
<label style={{ marginLeft: '5px' }} class="form-check-label" for="flexCheckIndeterminate">
{text}
</label>
</div>
))}
In a functional component,
const[selectedCheckbox, setSelectedCheckbox] = useState("");
And then, add an OnClick Listener to the checkbox. Don't forget to check if the checkbox is checked. I would write a function to update SelectedCheckbox if multiple selection is a possibility.
<input type="checkbox" value={text} id="flexCheckIndeterminate" onClick={(e) => {if(e.target.checked){setSelectedCheckbox(e.target.value)} }} />
I'm trying to create a very simple radio button system within react but cannot get the radio buttons to render correctly. I have attached my code as well as what the output looks like. What can I do to get the radio buttons to properly show up? Thanks!
https://i.imgur.com/N0ik047.png
constructor (props) {
super(props);
var user = props.location.state;
this.state = {
selected: ''
};
}
onChange = e => {
this.setState({selected: e.target.value})
}
render() {
return(
<form onSubmit={this.handleSubmit}>
<h1> Welcome! </h1>
<h4> Are you a: </h4>
<ul>
<li>
<label>
<input
type="radio"
value="student"
checked={value === "student"}
onChange={this.onChange}
/>
<h5> Student </h5>
</label>
</li>
<li>
<label>
<input
type="radio"
value="professor"
checked={value === "professor"}
onChange={this.onChange}
/>
<h5> Professor </h5>
</label>
</li>
</ul>
<button type="submit">Submit</button>
</form>
)
}
}
[1]: https://i.stack.imgur.com/DmU0W.png
There doesn't look to be anything wrong with the markup. I suspect that the styling is preventing the display of the radio buttons. On the image everything is centered - is it possible that the h5 header is rendering over the radio button. If you inspect the source of the web page and see the radio buttons in the DOM that indicates that styling is the issue.
I found many checkbox related questions but not was related like mine. Please check and help.
I have 10+ checkboxs which are dynamically creating as per the API data (looping list).
Here I want to know onClick whether the checkbox is unchecked or checked (accordingly i'll call different API).
To know/tack the checked or unchecked, i tried using the state. But the problem is while i'm checking/ unchecking all checkboxs are affecting with same.
Please help me handle that individually.
My code as follows:
this.state = {
isChecked: true,
};
handleClick = (e) => {
console.log("clicked", e.fieldId);
this.setState((prevState) => ({
isChecked: !prevState.isChecked,
}));
if(this.state.isChecked){
// update to API 1
}else{
// update to API 2
}
};
<input
type="checkbox"
checked={this.state.isChecked}
onClick={() => this.handleClick(subitems)}
name="check"
/>
<label className="form-check-label cost-blue">
{subitems.message}
</label>
Note: some checkboxs are already checked as per API list data. But by using the state, i unable to handle that also
Edit: This how i'm looping from API
Object.keys(dataMap).map((value, key) => {
return (
<div className="mt-10">
<div className="row text-center m-0 p-box white">
<div>
<img src={plant_icon} alt="plant" />
<span className="mb-0"> {value}</span>
</div>
</div>
{dataMap[value].map((subitems) => {
return (
<div className="form-check custom-cb m-10">
<input
className="form-check-input mt-7"
type="checkbox"
checked={this.state.isChecked}
onClick={() => this.handleClick(subitems)}
name="check"
/>
<label className="form-check-label cost-blue">
{subitems.message}
</label>
</div>
);
})}
</div>
);
})