Icons Library

18 Apr 20228 minutes to read

The Syncfusion Essential JS 2 provides the set of base64 formatted font icons, that can be utilized in the ASP.NET Core application.

Steps to Use Icon

  1. Add a class e-icons to the HTML element that shows the icon. This class contains the font-family and common property of the font icons.

  2. Add the icon class with corresponding icon content from the available icons. For example, the below code snippet represents the search icon class.


3.Add e-icons and e-search class to the HTML element.

<span class="e-icons e-search"></span>

The below code snippet represents the complete example of icon usage.

        content: '\e725';
        content: '\e34c';

<div class="icons">
        <li><span class="e-icons e-search"></span></li>
        <li><span class="e-icons e-settings"></span></li>
        <li><span class="e-icons e-upload"></span></li>
        <li><span class="e-icons e-font"></span></li>

Icons Size

You can change the icon size by adding e-small, e-medium and e-large class in the HTML element.

  • When icon size set to Small, the font size will be 8px.
  • When icon size set to Medium, the font size will be 16px.
  • When icon size set to Large, the font size will be 24px.
<p>Smaller icons</p>
<span class="e-icons e-cut e-small"></span>
<span class="e-icons e-copy e-small"></span>
<span class="e-icons e-paste e-small"></span>
<span class="e-icons e-bold e-small"></span>
<span class="e-icons e-underline e-small"></span>
<span class="e-icons e-italic e-small"></span>

<p>Medium icons</p>
<span class="e-icons e-cut e-medium"></span>
<span class="e-icons e-copy e-medium"></span>
<span class="e-icons e-paste e-medium"></span>
<span class="e-icons e-bold e-medium"></span>
<span class="e-icons e-underline e-medium"></span>
<span class="e-icons e-italic e-medium"></span>

<p>Larger icons</p>
<span class="e-icons e-cut e-large"></span>
<span class="e-icons e-copy e-large"></span>
<span class="e-icons e-paste e-large"></span>
<span class="e-icons e-bold e-large"></span>
<span class="e-icons e-underline e-large"></span>
<span class="e-icons e-italic e-large"></span>

Icon size customization

Tooltip for icons

title attribute is used to improve accessibility with screen readers and shows a tooltip on mouseover. The following example code displays tooltip text for appropriate icons.

<span class="e-icons e-upload-1" title="Upload"></span>
<span class="e-icons e-download" title="Download"></span>
<span class="e-icons e-undo" title="Undo"></span>
<span class="e-icons e-redo" title="Redo"></span>
<span class="e-icons e-align-top" title="AlignTop"></span>
<span class="e-icons e-align-bottom" title="AlignBottom"></span>
<span class="e-icons e-align-middle" title="AlignMiddle"></span>

ToolTip for Icon

Icon appearance customization

You can customize color and size by overriding the e-icons class. The following example code demonstrates the custom font-size and color for icons.

<span class="e-icons e-align-top"></span>
<span class="e-icons e-align-bottom"></span>
<span class="e-icons e-align-middle"></span>
<span class="e-icons e-justify"></span>
<span class="e-icons e-decrease-indent"></span>
<span class="e-icons e-increase-indent"></span>

        color: #ff0000;
        font-size: 26px !important;

Icon Customization

Third party icons integration

The Syncfusion ASP.NET core Toolbar control supports to render custom font icons using the prefixIcon property. To render custom font icons define the required font CSS that provides the required font name, font size, and content for the icon.

The following code explains how to render open-iconic icons using prefixIcon property.

<ejs-toolbar id="defaultToolbar">
        <e-toolbar-item prefixIcon="oi oi-list-rich"></e-toolbar-item>
        <e-toolbar-item prefixIcon="oi oi-account-login"></e-toolbar-item>
        <e-toolbar-item prefixIcon="oi oi-account-logout"></e-toolbar-item>
        <e-toolbar-item prefixIcon="oi oi-action-redo"></e-toolbar-item>
        <e-toolbar-item prefixIcon="oi oi-action-undo"></e-toolbar-item>
        <e-toolbar-item prefixIcon="oi oi-clock"></e-toolbar-item>
        <e-toolbar-item prefixIcon="oi oi-audio"></e-toolbar-item>
        <e-toolbar-item prefixIcon="oi oi-bluetooth"></e-toolbar-item>

Load custom icon in Icon

HTML attribute support

You can add the additional HTML attributes to the Syncfusion ASP.NET Core Button using HtmlAttributes property. All syncfusion ASP.NET Core controls support HTML attribute.

The following example shows the font size customization using HtmlAttributes directive.

@{IDictionary<string, object> customAttribute = new Dictionary<string, object>()
       { "style", "font-size: 20px" }

<ejs-button id="button" iconCss="e-icons e-copy" HtmlAttributes="customAttribute"></ejs-button>

Using icons directly in HTML element

The built-in Syncfusion icons can be rendered directly in the HTML element by defining e-icons class that contains the font-family and common property of font icons, and defining the available icon’s class with e- prefix.

The following code example explains the direct rendering of Syncfusion download icon in the span element.

<span class="e-icons e-download"></span>

Icons list

The complete pack of Syncfusion ASP.NET Core icons is listed in the following table. The corresponding icon content can be referred to the content section.

Bootstrap 5

Bootstrap 4



Tailwind CSS

Office Fabric

High Contrast