Open and close ContextMenu in React ContextMenu component

18 May 2022 / 1 minute to read

ContextMenu can be opened and closed programmatically whenever required by using open and close methods.

In the following example, the ContextMenu is opened using the open method at the specified position using top and left. Also, ContextMenu is closed using close method on ContextMenu item click or document click.

Source

Preview

index.jsx

index.html

index.css

index.tsx

import { enableRipple } from '@syncfusion/ej2-base';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';
import { ContextMenuComponent } from '@syncfusion/ej2-react-navigations';
import * as React from 'react';
import * as ReactDom from 'react-dom';
enableRipple(true);
class App extends React.Component {
    constructor(props) {
        super(props);
        this.menuItems = [
            {
                text: 'Cut'
            },
            {
                text: 'Copy'
            },
            {
                text: 'Paste'
            }
        ];
        this.btnClick = this.btnClick.bind(this);
    }
    btnClick() {
        this.cMenu.open(40, 20);
    }
    render() {
        return (<div className="container">
                <ContextMenuComponent id='contextmenu' ref={(scope) => this.cMenu = scope} items={this.menuItems}/>
                <ButtonComponent onClick={this.btnClick}>Open ContextMenu</ButtonComponent>
            </div>);
    }
}
ReactDom.render(<App />, document.getElementById('element'));

<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React ContextMenu</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="//cdn.syncfusion.com/ej2/20.1.55/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.55/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.55/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.55/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.55/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.55/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.1.55/ej2-react-buttons/styles/button/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='element'>
        <div id='loader'>Loading....</div>
    </div>
</body>

</html>

#loader {
	color: #008cff;
	height: 40px;
	left: 45%;
	position: absolute;
	top: 45%;
	width: 30%;
}

import { enableRipple } from '@syncfusion/ej2-base';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';
import { ContextMenuComponent, MenuItemModel } from '@syncfusion/ej2-react-navigations';
import * as React from 'react';
import * as ReactDom from 'react-dom';

enableRipple(true);

class App extends React.Component<{}, {}> {
    public cMenu: ContextMenuComponent;
    private menuItems: MenuItemModel[] = [
        {
            text: 'Cut'
        },
        {
            text: 'Copy'
        },
        {
            text: 'Paste'
        }
    ];
    constructor(props: any) {
        super(props);
        this.btnClick = this.btnClick.bind(this);
    }
    public btnClick(): void {
        this.cMenu.open(40, 20);
    }

    public render() {
        return (
            <div className="container">
                <ContextMenuComponent id='contextmenu' ref={(scope) => this.cMenu = scope as ContextMenuComponent} items={this.menuItems} />
                <ButtonComponent onClick={this.btnClick}>Open ContextMenu</ButtonComponent>
            </div>
        );
    }
}

ReactDom.render(<App />,document.getElementById('element'));