Underline a character in the item text in JavaScript (ES5) DropDownButton control

08 May 2023 / 1 minute to read

Underline a particular character in a text can be handled in beforeItemRenderevent by adding <u> tag in between the text and given as innerHTML in li rendering.

In the following example, C is underlined in the text Copy.

Source

Preview

index.js

index.html

styles.css

ej.base.enableRipple(true);

var items = [
    {
        text: 'Cut'
    },
    {
        text: 'Copy'
    },
    {
        text: 'Paste'
    }];

var ddbOption = {
  items: items,
  beforeItemRender: itemRender
}

var drpDownBtn = new ej.splitbuttons.DropDownButton(ddbOption);

drpDownBtn.appendTo('#element');

function itemRender(args) {
    if (args.item.text === 'Copy') {
        args.element.innerHTML = '<u>C</u>opy';
    }
}

<!DOCTYPE html><html lang="en"><head>
            
    <title>EJ2 DropDownButton</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/ej2/21.2.3/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-buttons/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-splitbuttons/styles/material.css" rel="stylesheet">
    <link href="styles.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <button id="element">Clipboard</button>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

#container {
    visibility: hidden;
}

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