How to manually trigger click event in ReactJS?

Here is the Hooks solution:

import React, {useRef} from 'react';

const MyComponent = () => {
    const myRefname= useRef<HTMLInputElement>(null);
    const handleClick = () => {
        myRefname.current.focus();
     }

    return (
        <div onClick={handleClick}>
            <input ref={myRefname}/>
        </div>
    );
}

Got the following to work May 2018 with ES6 React Docs as a reference: https://reactjs.org/docs/refs-and-the-dom.html

import React, { Component } from "react";
class AddImage extends Component {
  constructor(props) {
    super(props);
    this.fileUpload = React.createRef();
    this.showFileUpload = this.showFileUpload.bind(this);
  }
  showFileUpload() {
    this.fileUpload.current.click();
  }
  render() {
    return (
      <div className="AddImage">
        <input
          type="file"
          id="my_file"
          style={{ display: "none" }}
          ref={this.fileUpload}
        />
        <input
          type="image"
          src="http://www.graphicssimplified.com/wp-content/uploads/2015/04/upload-cloud.png"
          width="30px"
          onClick={this.showFileUpload}
        />
      </div>
    );
  }
}
export default AddImage;

You can use ref callback which will return the node. Call click() on that node to do a programmatic click.

Getting the div node

clickDiv(el) {
  el.click()
}

Setting a ref to the div node

<div 
  id="element1"
  className="content"
  ref={this.clickDiv}
  onClick={this.uploadLogoIcon}
>

Check the fiddle

https://jsfiddle.net/pranesh_ravi/5skk51ap/1/

Hope it helps!

In a functional component this principle also works, it's just a slightly different syntax and way of thinking.

const UploadsWindow = () => {
  // will hold a reference for our real input file
  let inputFile = '';

  // function to trigger our input file click
  const uploadClick = e => {
    e.preventDefault();
    inputFile.click();
    return false;
  };

  return (
    <>
      <input
        type="file"
        name="fileUpload"
        ref={input => {
          // assigns a reference so we can trigger it later
          inputFile = input;
        }}
        multiple
      />

      <a href="#" className="btn" onClick={uploadClick}>
        Add or Drag Attachments Here
      </a>
    </>
  )

}

this.buttonRef.current.click();

Riffing on Aaron Hakala's answer with useRef inspired by this answer https://stackoverflow.com/a/54316368/3893510

const myRef = useRef(null);

  const clickElement = (ref) => {
    ref.current.dispatchEvent(
      new MouseEvent('click', {
        view: window,
        bubbles: true,
        cancelable: true,
        buttons: 1,
      }),
    );
  };

And your JSX:

<button onClick={() => clickElement(myRef)}>Click<button/>
<input ref={myRef}>

Using React Hooks and the useRef hook.

import React, { useRef } from 'react';

const MyComponent = () => {
    const myInput = useRef(null);

    const clickElement = () => {
        // To simulate a user focusing an input you should use the
        // built in .focus() method.
        myInput.current?.focus();

        // To simulate a click on a button you can use the .click()
        // method.
        // myInput.current?.click();
    }

    return (
        <div>
            <button onClick={clickElement}>
                Trigger click inside input
            </button>
            <input ref={myInput} />
        </div>
    );
}

Try this and let me know if it does not work on your end:

<input type="checkbox" name='agree' ref={input => this.inputElement = input}/>
<div onClick={() => this.inputElement.click()}>Click</div>

Clicking on the div should simulate a click on the input element

  let timer;
  let isDoubleClick = false;

  const handleClick = () => {
    if(!isDoubleClick) {
      isDoubleClick = true;
      timer = setTimeout(() => {
        isDoubleClick = false;
        props.onClick();
      }, 200);
    } else {
      clearTimeout(timer);
      props.onDoubleClick();
    }
  }

return <div onClick={handleClick}></div>

for typescript you could use this code to avoid getting type error

import React, { useRef } from 'react';

const MyComponent = () => {
    const fileRef = useRef<HTMLInputElement>(null);

    const handleClick = () => {
      fileRef.current?.focus();
    }

    return (
        <div>
            <button onClick={handleClick}>
                Trigger click inside input
            </button>
            <input ref={fileRef} />
        </div>
    );
}

If it doesn't work in the latest version of reactjs, try using innerRef

class MyComponent extends React.Component {


  render() {
    return (
      <div onClick={this.handleClick}>
        <input innerRef={input => this.inputElement = input} />
      </div>
    );
  }

  handleClick = (e) => {
    this.inputElement.click();
  }
}

  imagePicker(){
        this.refs.fileUploader.click();
        this.setState({
            imagePicker: true
        })
    }

  <div onClick={this.imagePicker.bind(this)} >
  <input type='file'  style={{display: 'none'}}  ref="fileUploader" onChange={this.imageOnChange} /> 
  </div>

This work for me

Radio buttons are a little trickier; you only want to click on first render:

const MyComponent = () => {
   const v1 = useRef(null);
   
    const body =  <div>
       {Object.keys(versions).map((k, i) => (
           <div key={k}>
               <label>
                   <input
                       type="radio"
                       name="viz"
                       value={k}
                       onClick={handler}
                       style={{ width: "1em" }}
                       ref={i === 0 ? v1 : null}
                    ></input>
                        {k}
                </label>
            </div>
        ))}
        </div>
    );

    useEffect(() => {
        v1.current?.click();
    }, []);
    return body;
}