I am not able to Change the value of checkbox from false to true onclick on checkbox the onchange is not getting called.
checkedbox should be changed to true whwn ever we clicked the checkbox
this.state = {
checkedbox: false,
}
render() {
<Checkbox
label="test"
value={checkedbox}
onChange={this.handelCheck}
/>
}
handelCheck = (event) => {
this.setState({
checkedbox: event.target.checked
});
}
CodePudding user response:
You need to use this.state
in value, try the following
value={this.state.checkedbox}
CodePudding user response:
Simple, try using checked
attribute for checkbox
CodePudding user response:
It depends how you're logging that state after you've changed it.
setState
provides a callback that you can use to do things after the async process has completed, like logging the new state.Depending on whether you're using a library or rolling your own
Checkbox
component,checked
rather thanvalue
for your component property is much more meaningful.You should be passing in the
checked
state to yourchecked
property, not a random variable calledchecked
.
In this short example I've created my own Checkbox
component to show you how it all fits together.
const { Component } = React;
class Example extends Component {
constructor() {
super();
this.state = { checked: false };
}
// Set the state, and the call the callback
// function to log the new state
handleChange = (e) => {
this.setState({ checked: e.target.checked }, () => {
console.log(this.state.checked);
});
}
render() {
return (
<div>
<Checkbox
label="test"
checked={this.state.checked}
handleChange={this.handleChange}
/>
</div>
);
}
};
class Checkbox extends Component {
render() {
const {
checked,
label,
handleChange
} = this.props;
return (
<fieldset>
<legend>{label}</legend>
<input
type="checkbox"
checked={checked}
onChange={handleChange}
/>
</fieldset>
)
}
}
ReactDOM.render(
<Example />,
document.getElementById('react')
);
input[type="checkbox"]:hover { cursor: pointer; }
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.production.min.js"></script>
<div id="react"></div>
CodePudding user response:
try this one change on the value in the Checkbox to
value={this.state.checkedbox}
and change the handelCheck to just change to
!this.state.checkedbox
and it shold work
this.state = {
checkedbox: false,
}
render() {
<Checkbox
label="test"
value={this.state.checkedbox}
onChange={this.handelCheck}
/>
}
handelCheck = () => {
this.setState({
checkedbox: !this.state.checkedbox
});
}
CodePudding user response:
In my opinion maybe because it is not getting the event!
try :
onChange={e=>this.handelCheck(e)}