Getting Started with Blazor Tabs in Blazor Web App

10 Dec 202518 minutes to read

This section briefly explains about how to include Blazor Tabs component in your Blazor Web App using Visual Studio, Visual Studio Code, and the .NET CLI.

Prerequisites

System requirements for Blazor components

Create a new Blazor Web App in Visual Studio

Create a Blazor Web App using Visual Studio 2022 via Microsoft Templates or the Syncfusion^® Blazor Extension. For detailed instructions, refer to this Blazor Web App Getting Started documentation.

Configure the appropriate Interactive render mode and Interactivity location while creating a Blazor Web App.

Create Blazor Web App

Install Syncfusion^® Blazor Navigations and Themes NuGet in the App

To add the Blazor Tabs component in the app, open the NuGet package manager in Visual Studio (Tools → NuGet Package Manager → Manage NuGet Packages for Solution), then search and install Syncfusion.Blazor.Navigations and Syncfusion.Blazor.Themes.

If using the WebAssembly or Auto render modes in the Blazor Web App, install Syncfusion^® Blazor component NuGet packages in the client project.

Alternatively, run the following commands in the Package Manager Console to achieve the same.

Package Manager
Install-Package Syncfusion.Blazor.Navigations -Version 31.2.12
Install-Package Syncfusion.Blazor.Themes -Version 31.2.12

NOTE

Syncfusion^® Blazor components are available in nuget.org. Refer to the NuGet packages topic for the available NuGet packages list with component details.

Prerequisites

System requirements for Blazor components

Create a new Blazor Web App in Visual Studio Code

Create a Blazor Web App using Visual Studio Code via Microsoft Templates or the Syncfusion^® Blazor Extension. For detailed instructions, refer to this Blazor Web App Getting Started documentation.

Configure the appropriate interactive render mode and interactivity location when setting up a Blazor Web App. For detailed information, refer to the interactive render mode documentation.

For example, to create a Blazor Web App with the Auto interactive render mode, use the following commands.

Blazor Web App
dotnet new blazor -o BlazorWebApp -int Auto
cd BlazorWebApp
cd BlazorWebApp.Client

Install Syncfusion^® Blazor Navigations and Themes NuGet in the App

If using the WebAssembly or Auto render modes in the Blazor Web App, install Syncfusion^® Blazor component NuGet packages in the client project.

Press Ctrl+` to open the integrated terminal in Visual Studio Code.
Ensure you’re in the project root directory where your .csproj file is located.
Run the following command to install a Syncfusion.Blazor.Navigations and Syncfusion.Blazor.Themes NuGet package and ensure all dependencies are installed.

Package Manager
dotnet add package Syncfusion.Blazor.Navigations -v 31.2.12
dotnet add package Syncfusion.Blazor.Themes -v 31.2.12
dotnet restore

NOTE

Syncfusion^® Blazor components are available in nuget.org. Refer to the NuGet packages topic for the available NuGet packages list with component details.

Prerequisites

Install the latest version of .NET SDK. If you previously installed the SDK, you can determine the installed version by executing the following command in a command prompt (Windows) or terminal (macOS) or command shell (Linux).

.NET CLI
dotnet --version

Create a Blazor Web App using .NET CLI

Run the following command to create a new Blazor Web App in a command prompt (Windows) or terminal (macOS) or command shell (Linux). For detailed instructions, refer to this Blazor Web App Getting Started documentation.

Configure the appropriate interactive render mode and interactivity location when setting up a Blazor Web Application. For detailed information, refer to the interactive render mode documentation.

For example, to create a Blazor Web App with the Auto interactive render mode, use the following commands:

.NET CLI
dotnet new blazor -o BlazorApp -int Auto
cd BlazorApp
cd BlazorApp.Client

This command creates a new Blazor Web App and places it in a new directory called BlazorApp inside your current location. See the Create a Blazor App and dotnet new CLI command topics for more details.

Install Syncfusion^® Blazor Navigations and Themes NuGet in the App

Here’s an example of how to add Blazor Tabs component in the application using the following command in the command prompt (Windows) or terminal (Linux and macOS) to install a Syncfusion.Blazor.Navigations and Syncfusion.Blazor.Themes NuGet package. See Install and manage packages using the dotnet CLI topics for more details.

If using the WebAssembly or Auto render modes in the Blazor Web App, install Syncfusion^® Blazor component NuGet packages in the client project.

.NET CLI
dotnet add package Syncfusion.Blazor.Navigations --version 31.2.12
dotnet add package Syncfusion.Blazor.Themes --version 31.2.12
dotnet restore

NOTE

Syncfusion^® Blazor components are available in nuget.org. Refer to the NuGet packages topic for the available NuGet packages list with component details.

Add Import Namespaces

Open the ~/_Imports.razor file from the client project and import the Syncfusion.Blazor and Syncfusion.Blazor.Navigations namespaces.

~/_Imports.razor
@using Syncfusion.Blazor
@using Syncfusion.Blazor.Navigations

Register Syncfusion^® Blazor Service

If the Interactive Render Mode is set to WebAssembly or Auto, register the Syncfusion^® Blazor service in the ~/Program.cs files of the main server project and associated .Client project.

Server(~/_Program.cs)
Client(~/_Program.cs)
...
...
using Syncfusion.Blazor;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddRazorComponents()
    .AddInteractiveServerComponents()
    .AddInteractiveWebAssemblyComponents();
builder.Services.AddSyncfusionBlazor();

var app = builder.Build();
....
...
using Syncfusion.Blazor;

var builder = WebAssemblyHostBuilder.CreateDefault(args);
builder.Services.AddSyncfusionBlazor();

await builder.Build().RunAsync();

Add stylesheet and script resources

The theme stylesheet and script can be accessed from NuGet through Static Web Assets. Include the stylesheet reference in the <head> section and the script reference at the end of the <body> in the ~/Components/App.razor file as shown below:

<head>
    ....
    <link href="_content/Syncfusion.Blazor.Themes/bootstrap5.css" rel="stylesheet" />
</head>

<body>
    ....
    <script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>
</body>

NOTE

Check out the Blazor Themes topic to discover various methods (Static Web Assets, CDN, and CRG) for referencing themes in your Blazor application. Also, check out the Adding Script Reference topic to learn different approaches for adding script references in your Blazor application.

Add Syncfusion^® Blazor Tabs component

Add the Syncfusion^® Blazor Tabs component to a Razor page located under the Pages folder (e.g., Pages/Home.razor) in either the Server or Client project. If an interactivity location as Per page/component in the web app, define a render mode at top of the component, as follows:

Interactivity location	RenderMode	Code
Per page/component	Auto	@rendermode InteractiveAuto
	WebAssembly	@rendermode InteractiveWebAssembly
	None	—

NOTE

If an Interactivity Location is set to Global and the Render Mode is set to Auto or WebAssembly, the render mode is configured in the App.razor file by default.

RAZOR

@* desired render mode define here *@
@rendermode InteractiveAuto

RAZOR
<SfTab>
    <TabItems>
        <TabItem Content="Twitter is an online social networking service that enables users to send and read short 140-charactermessages called tweets.Registered users can read and post tweets, but those who are unregistered can only readthem.Users access Twitter through the website interface, SMS or mobile device app Twitter Inc. is based in SanFrancisco and has more than 25 offices around the world.Twitter was created in March 2006 by Jack Dorsey,Evan Williams, Biz Stone, and Noah Glass and launched in July 2006. The service rapidly gained worldwide popularity,with more than 100 million users posting 340 million tweets a day in 2012.The service also handled 1.6 billionsearch queries per day.">
            <ChildContent>
                <TabHeader Text="Twitter"></TabHeader>
            </ChildContent>
        </TabItem>
        <TabItem Content="Facebook is an online social networking service headquartered in Menlo Park, California. Its website waslaunched on February 4, 2004, by Mark Zuckerberg with his Harvard College roommates and fellow students EduardoSaverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes.">
            <ChildContent>
                <TabHeader Text="Facebook"></TabHeader>
            </ChildContent>
        </TabItem>
        <TabItem Content="WhatsApp Messenger is a proprietary cross-platform instant messaging client for smartphones that operatesunder a subscription business model.It uses the Internet to send text messages, images, video, user location andaudio media messages to other users using standard cellular mobile numbers. As of February 2016, WhatsApp had a userbase of up to one billion,[10] making it the most globally popular messaging application.WhatsApp Inc., based inMountain View, California, was acquired by Facebook Inc.on February 19, 2014, for approximately US$19.3 billion.">
            <ChildContent>
                <TabHeader Text="Whatsapp"></TabHeader>
            </ChildContent>
        </TabItem>
    </TabItems>
</SfTab>

Press Ctrl+F5 (Windows) or ⌘+F5 (macOS) to launch the application. This will render the Syncfusion^® Blazor Tabs component in the default web browser.

NOTE

View Sample in GitHub.

Initialize Blazor Tab Content using Template

Tab provides support to render content using ContentTemplate property. You can give preferred content inside the ContentTemplate element.

NOTE

ContentTemplate property supports RenderFragment type to render content.

The following code explains how to initialize tab content using ContentTemplate.

RAZOR
<SfTab>
    <TabItems>
        <TabItem>
            <ChildContent>
                <TabHeader Text="HTML"></TabHeader>
            </ChildContent>
            <ContentTemplate>
                <div>HyperText Markup Language, commonly referred to as HTML, is the standard markup language used to create web pages. Along with CSS, and JavaScript, HTML is a cornerstone technology, used by most websites to create visually engaging web pages, user interfaces for web applications, and user interfaces for many mobile applications.[1] Web browsers can read HTML files and render them into visible or audible web pages. HTML describes the structure of a website semantically along with cues for presentation, making it a markup language, rather than a programming language.</div>
            </ContentTemplate>
        </TabItem>
        <TabItem>
            <ChildContent>
                <TabHeader Text="Java"></TabHeader>
            </ChildContent>
            <ContentTemplate>
                <div>Java is a set of computer software and specifications developed by Sun Microsystems, later acquired by Oracle Corporation, that provides a system for developing application software and deploying it in a cross-platform computing environment. Java is used in a wide variety of computing platforms from embedded devices and mobile phones to enterprise servers and supercomputers. While less common, Java applets run in secure, sandboxed environments to provide many features of native applications and can be embedded in HTML pages.</div>
            </ContentTemplate>
        </TabItem>
        <TabItem>
            <ChildContent>
                <TabHeader Text="JavaScript"></TabHeader>
            </ChildContent>
            <ContentTemplate>
               <div>JavaScript (JS) is an interpreted computer programming language. It was originally implemented as part of web browsers so that client-side scripts could interact with the user, control the browser, communicate asynchronously, and alter the document content that was displayed.[5] More recently, however, it has become common in both game development and the creation of desktop applications.</div>
            </ContentTemplate>
        </TabItem>
    </TabItems>
</SfTab>

Two way binding of SelectedItem

The property SelectedItem supports two way property binding, in the following code example if either the value is changed in numeric text box or selected tab item is changed, it will reflect in both the value of numeric text box and selected tab item.

RAZOR
@using Syncfusion.Blazor.Inputs
@using Syncfusion.Blazor.Navigations

Selected Tab
<SfNumericTextBox TValue="int" @bind-Value="@SelectedTab" Min="0" Max="4" Width="200px"></SfNumericTextBox>

<SfTab @bind-SelectedItem="SelectedTab">
    <TabItems>
        <TabItem Content="HyperText Markup Language, commonly referred to as HTML, is the standard markup language used to create web pages. Along with CSS, and JavaScript, HTML is a cornerstone technology, used by most websites to create visually engaging web pages, user interfaces for web applications, and user interfaces for many mobile applications.[1] Web browsers can read HTML files and render them into visible or audible web pages. HTML describes the structure of a website semantically along with cues for presentation, making it a markup language, rather than a programming language.">
            <ChildContent>
                <TabHeader Text="HTML"></TabHeader>
            </ChildContent>
        </TabItem>
        <TabItem Content="C# is intended to be a simple, modern, general-purpose, object-oriented programming language. Its development team is led by Anders Hejlsberg. The most recent version is C# 5.0, which was released on August 15, 2012.">
            <ChildContent>
                <TabHeader Text="C Sharp(C#)"></TabHeader>
            </ChildContent>
        </TabItem>
        <TabItem Content="Java is a set of computer software and specifications developed by Sun Microsystems, later acquired by Oracle Corporation, that provides a system for developing application software and deploying it in a cross-platform computing environment. Java is used in a wide variety of computing platforms from embedded devices and mobile phones to enterprise servers and supercomputers. While less common, Java applets run in secure, sandboxed environments to provide many features of native applications and can be embedded in HTML pages.">
            <ChildContent>
                <TabHeader Text="Java"></TabHeader>
            </ChildContent>
        </TabItem>
        <TabItem Content="Python is a high-level, general-purpose programming language. Its design philosophy emphasizes code readability with the use of significant indentation. Python is dynamically typed and garbage-collected. It supports multiple programming paradigms, including structured, object-oriented and functional.">
            <ChildContent>
                <TabHeader Text="Python"></TabHeader>
            </ChildContent>
        </TabItem>
        <TabItem Content="TypeScript is a newcomer to top programming language lists, but it’s making headway. It was developed in 2012 by Microsoft and is a typed version of JavaScript that is well suited for large code bases. TypeScript is used to create JavaScript-based projects with typing in both client-side and server-side development, making useful for catching errors and preventing systemic issues.">
            <ChildContent>
                <TabHeader Text="TypeScript"></TabHeader>
            </ChildContent>
        </TabItem>
    </TabItems>
</SfTab>

@code {
    private int SelectedTab = 0;
}

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Getting Started with Blazor Tabs in Blazor Web App

Prerequisites

Create a new Blazor Web App in Visual Studio

Install Syncfusion^® Blazor Navigations and Themes NuGet in the App

Prerequisites

Create a new Blazor Web App in Visual Studio Code

Install Syncfusion^® Blazor Navigations and Themes NuGet in the App

Prerequisites

Create a Blazor Web App using .NET CLI

Install Syncfusion^® Blazor Navigations and Themes NuGet in the App

Add Import Namespaces

Register Syncfusion^® Blazor Service

Add stylesheet and script resources

Add Syncfusion^® Blazor Tabs component

Initialize Blazor Tab Content using Template

Two way binding of SelectedItem

See also

Getting Started with Blazor Tabs in Blazor Web App

Prerequisites

Create a new Blazor Web App in Visual Studio

Install Syncfusion® Blazor Navigations and Themes NuGet in the App

Prerequisites

Create a new Blazor Web App in Visual Studio Code

Install Syncfusion® Blazor Navigations and Themes NuGet in the App

Prerequisites

Create a Blazor Web App using .NET CLI

Install Syncfusion® Blazor Navigations and Themes NuGet in the App

Add Import Namespaces

Register Syncfusion® Blazor Service

Add stylesheet and script resources

Add Syncfusion® Blazor Tabs component

Initialize Blazor Tab Content using Template

Two way binding of SelectedItem

See also

Install Syncfusion^® Blazor Navigations and Themes NuGet in the App

Install Syncfusion^® Blazor Navigations and Themes NuGet in the App

Install Syncfusion^® Blazor Navigations and Themes NuGet in the App

Register Syncfusion^® Blazor Service

Add Syncfusion^® Blazor Tabs component