Format code block in React Rich text editor component

20 Jan 20235 minutes to read

You can configure code block formatting as a separate toolbar button by adding the InsertCode keyword within the toolbarSettings items property.

The InsertCode button has a toggle state to apply code block formatting to the editor and remove code block formatting from the editor.

The following sample demonstrates how to config the InsertCode button in toolbar and set the background color to “pre” tag for highlighting the code block.

[Class-component]

import { HtmlEditor, Inject, Link,Image, RichTextEditorComponent, QuickToolbar, Toolbar } from '@syncfusion/ej2-react-richtexteditor';
import * as React from 'react';

class App extends React.Component {
    rteValue = "<p>The Syncfudion Rich Text Editor, a WYSIWYG (what you see is what you get) editor, is a user interface that allows you to create, edit, and format rich text content. You can try out a demo of this editor here.</p><p><b>Key features:</b></p><ul><li><p>Provides &lt;IFRAME&gt; and &lt;DIV&gt; modes.</p></li><li><p>Bulleted and numbered lists.</p></li><li><p>Handles images, hyperlinks, videos, hyperlinks, uploads, etc.</p></li><li><p>Contains undo/redo manager. </p></li></ul><div style='display: inline-block; width: 60%; vertical-align: top; cursor: auto;'><img alt='Sky with sun' src='https://cdn.syncfusion.com/ej2/richtexteditor-resources/RTE-Overview.png' width='309' style='min-width: 10px; min-height: 10px; width: 309px; height: 174px;' class='e-rte-image e-imginline e-rte-drag-image' height='174' /></div>";
    tools = {
        items: ['InsertCode']
    };
    render() {
        return (<RichTextEditorComponent value={this.rteValue} toolbarSettings={this.tools}>
        <Inject services={[Toolbar, Image, Link, HtmlEditor, QuickToolbar]}/>
      </RichTextEditorComponent>);
    }
}
export default App;
import { HtmlEditor, Inject, Link,Image, RichTextEditorComponent, QuickToolbar, Toolbar } from '@syncfusion/ej2-react-richtexteditor';
import * as React from 'react';

class App extends React.Component<{},{}> {
  private tools: object = {
    items: ['InsertCode']
  }
  private rteValue: string = "<p>The Syncfudion Rich Text Editor, a WYSIWYG (what you see is what you get) editor, is a user interface that allows you to create, edit, and format rich text content. You can try out a demo of this editor here.</p><p><b>Key features:</b></p><ul><li><p>Provides &lt;IFRAME&gt; and &lt;DIV&gt; modes.</p></li><li><p>Bulleted and numbered lists.</p></li><li><p>Handles images, hyperlinks, videos, hyperlinks, uploads, etc.</p></li><li><p>Contains undo/redo manager. </p></li></ul><div style='display: inline-block; width: 60%; vertical-align: top; cursor: auto;'><img alt='Sky with sun' src='https://cdn.syncfusion.com/ej2/richtexteditor-resources/RTE-Overview.png' width='309' style='min-width: 10px; min-height: 10px; width: 309px; height: 174px;' class='e-rte-image e-imginline e-rte-drag-image' height='174' /></div>";
  public render() {
    return (
      <RichTextEditorComponent value={this.rteValue} toolbarSettings={this.tools}>
        <Inject services={[Toolbar, Image, Link, HtmlEditor, QuickToolbar]} />
      </RichTextEditorComponent>
    );
  }
}

export default App;

[Functional-component]

import { HtmlEditor, Inject, Link, RichTextEditorComponent, QuickToolbar, Toolbar } from '@syncfusion/ej2-react-richtexteditor';
import * as React from 'react';

function App() {
    const tools = {
        items: ['InsertCode']
    };
    let rteValue = "<p>The Syncfudion Rich Text Editor, a WYSIWYG (what you see is what you get) editor, is a user interface that allows you to create, edit, and format rich text content. You can try out a demo of this editor here.</p><p><b>Key features:</b></p><ul><li><p>Provides &lt;IFRAME&gt; and &lt;DIV&gt; modes.</p></li><li><p>Bulleted and numbered lists.</p></li><li><p>Handles images, hyperlinks, videos, hyperlinks, uploads, etc.</p></li><li><p>Contains undo/redo manager. </p></li></ul><div style='display: inline-block; width: 60%; vertical-align: top; cursor: auto;'><img alt='Sky with sun' src='https://cdn.syncfusion.com/ej2/richtexteditor-resources/RTE-Overview.png' width='309' style='min-width: 10px; min-height: 10px; width: 309px; height: 174px;' class='e-rte-image e-imginline e-rte-drag-image' height='174' /></div>";
    return (<RichTextEditorComponent value={rteValue} toolbarSettings={tools}>
      <Inject services={[Toolbar, Link, HtmlEditor, QuickToolbar]}/>
    </RichTextEditorComponent>);
}
export default App;
import { HtmlEditor, Inject, Link, RichTextEditorComponent, QuickToolbar, Toolbar } from '@syncfusion/ej2-react-richtexteditor';
import * as React from 'react';

function App() {
    const tools = {
        items: ['InsertCode']
    };
    let rteValue: string = "<p>The Syncfudion Rich Text Editor, a WYSIWYG (what you see is what you get) editor, is a user interface that allows you to create, edit, and format rich text content. You can try out a demo of this editor here.</p><p><b>Key features:</b></p><ul><li><p>Provides &lt;IFRAME&gt; and &lt;DIV&gt; modes.</p></li><li><p>Bulleted and numbered lists.</p></li><li><p>Handles images, hyperlinks, videos, hyperlinks, uploads, etc.</p></li><li><p>Contains undo/redo manager. </p></li></ul><div style='display: inline-block; width: 60%; vertical-align: top; cursor: auto;'><img alt='Sky with sun' src='https://cdn.syncfusion.com/ej2/richtexteditor-resources/RTE-Overview.png' width='309' style='min-width: 10px; min-height: 10px; width: 309px; height: 174px;' class='e-rte-image e-imginline e-rte-drag-image' height='174' /></div>";
    return (<RichTextEditorComponent value={rteValue} toolbarSettings={tools}>
      <Inject services={[Toolbar, Link, HtmlEditor, QuickToolbar]}/>
    </RichTextEditorComponent>);
}
export default App;