Syncfusion ASP.NET MVC Themes

11 Apr 20239 minutes to read

The following list of themes are included in the Syncfusion ASP.NET MVC controls library.

Theme Style Sheet Name
Bootstrap 5 bootstrap5.css
Bootstrap 5 Dark bootstrap5-dark.css
Bootstrap 4 bootstrap4.css
Bootstrap 3 bootstrap.css
Bootstrap 3 Dark bootstrap-dark.css
Google’s Material material.css
Google’s Material-Dark material-dark.css
Tailwind CSS tailwind.css
Tailwind CSS Dark tailwind-dark.css
Fluent fluent.css
Fluent Dark fluent-dark.css
Microsoft Office Fabric fabric.css
Microsoft Office Fabric Dark fabric-dark.css
High Contrast highcontrast.css

The Syncfusion ASP.NET MVC Bootstrap theme is designed based on Bootstrap v3, whereas the Bootstrap4 theme is designed based on Bootstrap v4. Syncfusion ASP.NET MVC themes provide support for the Fusion Theme that can only be downloaded from ThemeStudio.

Reference themes in ASP.NET MVC application

Syncfusion ASP.NET MVC themes can be used in your ASP.NET MVC application by referencing the style sheet. Refer the ASP.NET MVC Styles Sheet inside the <head> element of ~/Views/Shared/_Layout.cshtml layout page.

Using the below approaches the themes can be referenced in the ASP.NET MVC application,

  1. CDN - Used to reference complete css via static web assets.
  2. CRG - Used to generate resources only for the selected (used) components.
  3. Theme Studio - Used to customize and generate themes only for the selected (used) components.

CDN Reference

Instead of using a local resource on your server, you can use a cloud CDN to reference the theme style sheets. CDN Stands for “Content Delivery Network”. A CDN is a group of servers distributed in different locations. While CDN are often used to host websites, they are commonly used to provide other types of downloadable data as well. Examples include software programs, images, videos, and streaming media.

Syncfusion ASP.NET MVC Themes are available in the CDN. Make sure that the version in the URLs matches the version of the Syncfusion Essential JS 2 ASP.NET MVC Package you are using.

    <link href="" rel="stylesheet"/>
Theme Name CDN Reference
Bootstrap 5
Bootstrap 5 Dark
Bootstrap 4
Bootstrap 3
Bootstrap 3 Dark
Google’s Material
Google’s Material Dark
Tailwind CSS
Tailwind Dark CSS
Fluent Dark
Microsoft Office Fabric
Microsoft Office Fabric Dark
High Contrast

Change theme dynamically

In the ASP.NET MVC application, the application theme can be changed dynamically by changing its style sheet reference in code.

1.Add id attribute in the Syncfusion style sheet references in ~/Views/Shared/_Layout.cshtml page like below.

    <!-- Syncfusion ASP.NET MVC controls styles -->
    <link id="cssfile" rel="stylesheet" href="" />

2.Create a ThemeDetails.cs model page and use the following code for dropdown data on the ~/Models/ThemeDetails.cs page.

using System.Collections.Generic;

namespace ThemeSwitch.Models
    public class ThemeDetail
        public string ID { get; set; }
        public string Text { get; set; }

        public List<ThemeDetail> ThemeDetails()
            List<ThemeDetail> themes = new List<ThemeDetail>();
            themes.Add(new ThemeDetail() { ID = "material", Text = "Material" });
            themes.Add(new ThemeDetail() { ID = "bootstrap", Text = "Bootstrap" });
            themes.Add(new ThemeDetail() { ID = "fabric", Text = "Fabric" });
            themes.Add(new ThemeDetail() { ID = "bootstrap4", Text = "Bootstrap 4" });
            themes.Add(new ThemeDetail() { ID = "tailwind", Text = "TailWind" });
            themes.Add(new ThemeDetail() { ID = "tailwind-dark", Text = "TailWind Dark" });
            themes.Add(new ThemeDetail() { ID = "material-dark", Text = "Material Dark" });
            themes.Add(new ThemeDetail() { ID = "bootstrap-dark", Text = "Bootstrap Dark" });
            themes.Add(new ThemeDetail() { ID = "fabric-dark", Text = "Fabric Dark" });
            themes.Add(new ThemeDetail() { ID = "highcontrast", Text = "High Contrast" });
            return themes;

3.Implement a theme change dynamically using the Syncfusion ASP.NET MVC dropdown control in the application as in the below code.

@using Syncfusion.EJ2.DropDowns;
@using ThemeSwitch.Models;

    @Html.EJS().DropDownList("theme").Placeholder("Select a theme").PopupHeight("220px").Index(2).Width("20%").DataSource(
    (IEnumerable<ThemeDetail>)"onThemeChange").Fields(new DropDownListFieldSettings { Text = "Text", Value = "ID" }).Render()

<script type="text/javascript">
    function onThemeChange(e) {
        document.getElementsByTagName('body')[0].style.display = 'none';
        var themeName = e.value;
        let synclink = document.getElementById('cssfile');
        synclink.href = '' + themeName + '.css';
        setTimeout(function () { document.getElementsByTagName('body')[0].style.display = 'block'; }, 500);

Change theme dynamically


View sample in GitHub