Trigger click event of input file from external button in React Uploader component

30 Jan 20234 minutes to read

Click event of input file from the external button can be triggered using the click event of button.
In the following sample, you can find the triggered click event of input file from Essential JavaScript 2 Button.

index.jsx

import { select } from '@syncfusion/ej2-base';
import { UploaderComponent } from '@syncfusion/ej2-react-inputs';
import * as React from 'react';
import * as ReactDOM from "react-dom";
export default class App extends React.Component {
    uploadObj;
    path = {
        removeUrl: 'https://services.syncfusion.com/react/production/api/FileUploader/Remove',
        saveUrl: 'https://services.syncfusion.com/react/production/api/FileUploader/Save'
    };
    browseClick() {
        const wrapperEle = select('.e-file-select-wrap button', document);
        wrapperEle.click();
    }
    render() {
        return (<div className="control_wrapper">
            <div id="dropArea">
                <span id="drop"> Drop image (JPG, PNG) files here or <button className='e-btn e-control' id="browse" onClick={this.browseClick = this.browseClick.bind(this)}>Browse</button></span>
            </div>
            <UploaderComponent ref={uplaod => { this.uploadObj = uplaod; }} asyncSettings={this.path}/>
        </div>);
    }
}
ReactDOM.render(<App />, document.getElementById('fileupload'));

index.tsx

import { select } from '@syncfusion/ej2-base';
import { UploaderComponent } from '@syncfusion/ej2-react-inputs';
import * as React from 'react';
import * as ReactDOM from "react-dom";

export default class App extends React.Component<{}, {}> {
  public uploadObj: UploaderComponent;
  public path: object = {
      removeUrl: 'https://services.syncfusion.com/react/production/api/FileUploader/Remove',
      saveUrl: 'https://services.syncfusion.com/react/production/api/FileUploader/Save'
  }
  public browseClick(): void {
    const wrapperEle: HTMLElement = select('.e-file-select-wrap button', document) as HTMLElement;
    wrapperEle.click();
  }
  public render(): JSX.Element {
    return (
        <div className="control_wrapper">
            <div id="dropArea">
                <span id="drop"> Drop image (JPG, PNG) files here or <button className='e-btn e-control' id="browse" onClick = {this.browseClick = this.browseClick.bind(this)}>Browse</button></span>
            </div>
            <UploaderComponent ref={uplaod => {this.uploadObj = uplaod !}} asyncSettings={this.path} />
        </div>
    );
  }
}

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

You can also explore React File Upload feature tour page for its groundbreaking features. You can also explore our React File Upload example to understand how to browse the files which you want to upload to the server.