By default, dialog can be closed by pressing Esc key and clicking the close icon on the right of dialog header. It can also be closed by clicking outside of the dialog using hide method. Set the CloseOnEscape property value to false to prevent closing of the dialog when pressing Esc key.
In the following sample, dialog is closed when clicking outside the dialog area using hide method.
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import App from './App';
ReactDOM.render(<App />, document.getElementById('container'));<!DOCTYPE html>
<html lang="en">
<head>
<title>Syncfusion React Dialog</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="styles.css" rel="stylesheet" />
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<link href="//cdn.syncfusion.com/ej2/20.1.58/ej2-base/styles/material.css" rel="stylesheet" />
<link href="//cdn.syncfusion.com/ej2/20.1.58/ej2-react-buttons/styles/material.css" rel="stylesheet" />
<link href="//cdn.syncfusion.com/ej2/20.1.58/ej2-react-popups/styles/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='container'>
<div id="dialog">
<div id='loader'>Loading....</div>
</div>
</div>
</body>
</html>import * as React from 'react';
import * as ReactDOM from 'react-dom';
import App from './App';
ReactDOM.render(<App />, document.getElementById('container'));