Format in EJ2 TypeScript Range slider control

29 Aug 202312 minutes to read

The format feature used to customize the units of Slider values to desired format. The formatted values will also be applied to the ARIA attributes of the slider. There are two ways of achieving formatting in slider.

  • Use the format API of slider which utilizes our Internationalization to format values.

  • Customize using the events namely renderingTicks and tooltipChange.

import { Slider } from '@syncfusion/ej2-inputs';

// Initialize Slider control
 let sliderObj: Slider = new Slider({
    min: 0, max: 100, step: 1, value: 30,
    // Applying currency formatting for tooltip with two decimal specifiers
    tooltip: { isVisible: true, format: 'C2' },
    // Applying currency formatting for ticks with two decimal specifiers
    ticks: { placement: 'After', format: 'C2', largeStep: 20, smallStep: 10, showSmallTicks: true }
});
// Render initialized Slider
sliderObj.appendTo('#slider');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 Slider</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 Slider Component" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-buttons/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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div class='wrap'>
            <div id="slider">
            </div>
        </div>
    </div>
</body>

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

#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}

.wrap {
  box-sizing: border-box;
  height: 260px;
  margin: 0 auto;
  padding: 30px 10px;
  width: 460px;
}

Using format API

In this method, we have different predefined formatting styles like Numeric (N), Percentage (P), Currency (C) and # specifiers. In this below example we have formatted the ticks and tooltip values into percentage.

import { Slider } from '@syncfusion/ej2-inputs';

// Initialize Slider control
 let percentObj: Slider = new Slider({
    min: 0, max: 1, value: .3, step: .01,
    // Assigning ticks values to percentage formatting
    ticks: { placement: 'After', largeStep: .2, smallStep: .1, showSmallTicks: true, format: 'P0' },
    // Assigning tooltip values to percentage formatting
    tooltip: { placement: 'Before', isVisible: true, showOn: 'Always', format: 'P0' },
});
// Render initialized Slider
percentObj.appendTo('#slider');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 Slider</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 Slider Component" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-buttons/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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div class='wrap'>
            <div id="slider">
            </div>
        </div>
    </div>
</body>

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

#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}

.wrap {
  box-sizing: border-box;
  height: 260px;
  margin: 0 auto;
  padding: 30px 10px;
  width: 460px;
}

Using Events

In this method, we will be retrieving the values from the slider events then process them to desired formatted the values. In this sample we have customized the ticks values into weekdays as one formatting and tooltip values into day of the week as another formatting.

import { Slider, SliderTickEventArgs, SliderTooltipEventArgs } from '@syncfusion/ej2-inputs';

// Initialize Slider control
 let eventObj: Slider = new Slider({
        // Minimum value
        min: 0,
        // Maximum value
        max: 6,
        // Slider current value
        value: 2,
        // Assigning ticks data
        ticks: {
            placement: 'After',
            largeStep: 1
        },
        renderingTicks: function (args: SliderTickEventArgs) {
                // Weekdays Array
                let daysArr: string [] = ['Sunday','Monday','Tuesday','Wednesday','Thrusday','Friday','Saturday'];
                // Customizing each ticks text into weeksdays
                args.text = daysArr[parseFloat(args.value as any)];
        },
        tooltipChange: function (args: SliderTooltipEventArgs) {
                // Customizing tooltip to display the Day (in numeric) of the week
                args.text =  'Day ' + (Number(args.value) + 1).toString();
        },
        // Assigning tooltip data
        tooltip: {
            placement: 'Before',
            isVisible: true
        }
    });
    // Render initialized Slider
    eventObj.appendTo('#slider');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 Slider</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 Slider Component" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-buttons/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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div class='wrap'>
            <div id="slider">
            </div>
        </div>
    </div>
</body>

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

#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}

.wrap {
  box-sizing: border-box;
  height: 260px;
  margin: 0 auto;
  padding: 30px 10px;
  width: 460px;
}