javascript - Access a parent component's method onClick in React - Stack Overflow

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So as the title suggests I'm just trying to access a parent ponent's method in React via a child ponent. I understand this can be acplished via props, however I'm attempting to do it via an onClick event and it doesn't seem to like that. Here is a basic example of my problem.

var Child = React.createClass({

render: function() {
    return (

        <button onClick={this.onClick}>Click Here</button>
  );
 }
});   


var Parent = React.createClass({

onClick: function() {
    console.log('I've been clicked');
  },


render: function() {
    return (

        <Child />

  );
 }
});

ReactDOM.render(<Parent />, document.getElementById('Parent'));

How do I get the Child ponent's button onClick event to fire the Parent ponent's onClick method? Appreciate the help.

So as the title suggests I'm just trying to access a parent ponent's method in React via a child ponent. I understand this can be acplished via props, however I'm attempting to do it via an onClick event and it doesn't seem to like that. Here is a basic example of my problem.

var Child = React.createClass({

render: function() {
    return (

        <button onClick={this.onClick}>Click Here</button>
  );
 }
});   


var Parent = React.createClass({

onClick: function() {
    console.log('I've been clicked');
  },


render: function() {
    return (

        <Child />

  );
 }
});

ReactDOM.render(<Parent />, document.getElementById('Parent'));

How do I get the Child ponent's button onClick event to fire the Parent ponent's onClick method? Appreciate the help.

• javascript
• node.js
• express
• reactjs

Share Follow asked Nov 2, 2016 at 23:14 jdev99jdev99 9522 gold badges33 silver badges1212 bronze badges

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2 Answers 2

Sorted by: Reset to default 8

You can pass Parent's onClick function to Child as a prop:

<Child myClick={this.onClick} />

and then use it in Child:

<button onClick={this.props.myClick}>Click Here</button>

Entire code:

var Child = React.createClass({
    render: function() {
        return (<button onClick={this.props.myClick}>Click Here</button>)
    }
});

var Parent = React.createClass({
    onClick: function() {
        console.log("I've been clicked");
    },

    render: function() {
        return (<Child myClick={this.onClick} />);
    }
});

ReactDOM.render(<Parent />, document.getElementById('container'));

Thats just the way React is, you can pass it down a reference to the callback function to the child as a prop and then have the child call the function using the prop. This is the React way and cannot be done outside of props when it es to a child accessing a parent property.

if you want to do something more in the child ponent you can define an onclick function inside of your child ponent and have it do anything additional or add arguments to the this.props.onClick.

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