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Group items in Popup in JavaScript SplitButton control

Items in popup can be grouped in SplitButton by templating entire popup with ListView. To achieve grouping in ListView, check ListView Grouping documentation. To template ListView in popup, create ListView with id listview and provide it as target for SplitButton.

The following example illustrates how to group items in popup using ListView component.

Source
Preview
app.ts
index.html
styles.css
import { SplitButton } from '@syncfusion/ej2-splitbuttons';
import { ListView } from '@syncfusion/ej2-lists';
import { enableRipple } from '@syncfusion/ej2-base';

enableRipple(true);

let listItems: { [key: string]: Object }[] = [
    {
        'text': 'Cut',
        'category': 'Basic'
    },
    {
        'text': 'Copy',
        'category': 'Basic'
    },
    {
        'text': 'Paste',
        'category': 'Basic'
    },
    {
        'text': 'Paste as Formula',
        'category': 'Advanced'
    },
    {
        'text': 'Paste as Hyperlink',
        'category': 'Advanced'
    },
];

let listView: ListView = new ListView({
    dataSource: listItems,
    sortOrder: 'Descending',
    fields: { groupBy: 'category' }
}, '#listview');

let splitBtn: SplitButton =  new SplitButton({ content: 'ClipBoard', target: listView.element }, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 SplitButton</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="styles.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='loader'>LOADING....</div>
    <div id='container'>
        <button id='element'></button>
        <div id='listview'></div>
    </div>
</body>

</html>
#container {
    visibility: hidden;
}

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