Getting Started with Blazor Accordion Component

23 Dec 202510 minutes to read

This section briefly explains about how to include Blazor Accordion component in a Blazor WebAssembly App using Visual Studio, Visual Studio Code, and the .NET CLI.

Prerequisites

Create a new Blazor App in Visual Studio

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

Blazor WASM Create Project Template

Install Syncfusion® Blazor Navigations and Themes NuGet in the App

To add the Blazor Accordion 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. Alternatively, run the following commands in the Package Manager Console to achieve the same.

Install-Package Syncfusion.Blazor.Navigations -Version 32.1.19
Install-Package Syncfusion.Blazor.Themes -Version 32.1.19

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

Create a new Blazor App in Visual Studio Code

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

Alternatively, create a WebAssembly application by using the following command in the integrated terminal(Ctrl+`).

dotnet new blazorwasm -o BlazorApp
cd BlazorApp

Install Syncfusion® Blazor Navigations and Themes NuGet in the App

  • Press Ctrl+` to open the integrated terminal in Visual Studio Code.
  • Ensure in the project root directory where the .csproj file is located.
  • Run the following command to install a Syncfusion.Blazor.Navigations and Syncfusion.Blazor.Themes NuGet packages and ensure all dependencies are installed.
dotnet add package Syncfusion.Blazor.Navigations -v 32.1.19
dotnet add package Syncfusion.Blazor.Themes -v 32.1.19
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 the .NET SDK is already installed, determine the installed version by running the following command in a command prompt (Windows), terminal (macOS), or command shell (Linux).

dotnet --version

Create a Blazor WebAssembly App using .NET CLI

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

dotnet new blazorwasm -o BlazorApp
cd BlazorApp

Install Syncfusion® Blazor Navigations and Themes NuGet in the App

To add the Blazor Accordion component to the application, run the following commands in a command prompt (Windows), command shell (Linux), or terminal (macOS) to install the Syncfusion.Blazor.Navigations and Syncfusion.Blazor.Themes NuGet packages. See Install and manage packages using the dotnet CLI for more details.

dotnet add package Syncfusion.Blazor.Navigations -Version 32.1.19
dotnet add package Syncfusion.Blazor.Themes -Version 32.1.19
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 and import the Syncfusion.Blazor and Syncfusion.Blazor.Navigations namespaces.

@using Syncfusion.Blazor
@using Syncfusion.Blazor.Navigations

Register Syncfusion® Blazor Service

Register the Syncfusion® Blazor Service in the ~/Program.cs file of the Blazor WebAssembly App.

using Microsoft.AspNetCore.Components.Web;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Syncfusion.Blazor;

var builder = WebAssemblyHostBuilder.CreateDefault(args);
builder.RootComponents.Add<App>("#app");
builder.RootComponents.Add<HeadOutlet>("head::after");

builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });

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 and script references within the <head> section of the ~/index.html file.

<head>
    ....
    <link href="_content/Syncfusion.Blazor.Themes/bootstrap5.css" rel="stylesheet" />
    <script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>
</head>

NOTE

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

Add Blazor Accordion component

Add the Syncfusion® Blazor Accordion component in the ~/Pages/Index.razor file.

<SfAccordion>
    <AccordionItems>
        <AccordionItem Header="Margeret Peacock" Content="Margeret Peacock was born on Saturday , 01 December 1990. Now lives at Coventry House Miner Rd., London,UK. Margeret Peacock holds a position of Sales Coordinator in our WA department, (Seattle USA). Joined our company on Saturday , 01 May 2010"></AccordionItem>
        <AccordionItem Header="Laura Callahan" Content="Laura Callahan was born on Tuesday , 06 November 1990. Now lives at Edgeham Hollow Winchester Way, London,UK. Laura Callahan holds a position of Sales Coordinator in our WA department, (Seattle USA). Joined our company on Saturday , 01 May 2010"></AccordionItem>
        <AccordionItem Header="Albert Dodsworth" Content="Albert Dodsworth was born on Thursday , 19 October 1989. Now lives at 4726 - 11th Ave. N.E., Seattle,USA.Albert Dodsworth holds a position of Sales Representative in our WA department, (Seattle USA). Joined our company on Friday , 01 May 2009"></AccordionItem>
    </AccordionItems>
</SfAccordion>

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

Blazor Accordion Component

Initialize Blazor Accordion using Template

The following code explains how to initialize Blazor Accordion using header and content template.

  • CSHTML
    • @using Syncfusion.Blazor.Navigations

<SfAccordion>
    <AccordionItems>
        <AccordionItem>
            <HeaderTemplate>
                <div>Margeret Peacock</div>
            </HeaderTemplate>
            <ContentTemplate>
                <div class='container'><img src='https://ej2.syncfusion.com/demos/src/schedule/images/margaret.png' /><div class='content'><b>Margeret Peacock</b> was born on Saturday , 01 December 1990. Now lives at Coventry House Miner Rd., London,UK. Margeret Peacock holds a position of <b>Sales Coordinator</b> in our WA department, (Seattle USA). Joined our company on Saturday , 01 May 2010.</div></div>
            </ContentTemplate>
        </AccordionItem>
        <AccordionItem>
            <HeaderTemplate>
                <div>Laura Callahan</div>
            </HeaderTemplate>
            <ContentTemplate>
                <div class='container'><img src='https://ej2.syncfusion.com/demos/src/schedule/images/laura.png' /><div class='content'><b>Laura Callahan</b> was born on Tuesday , 06 November 1990. Now lives at Edgeham Hollow Winchester Way, London,UK. Laura Callahan holds a position of <b>Sales Coordinator</b> in our WA department, (Seattle USA). Joined our company on Saturday , 01 May 2010.</div></div>
            </ContentTemplate>
        </AccordionItem>
        <AccordionItem>
            <HeaderTemplate>
                <div>Albert Dodsworth</div>
            </HeaderTemplate>
            <ContentTemplate>
                <div class='container'><img src='https://ej2.syncfusion.com/demos/src/schedule/images/robert.png' /><div class='content'> <b>Robert Dodsworth</b> was born on Thursday , 19 October 1989. Now lives at 4726 - 11th Ave. N.E., Seattle,USA.Albert Dodsworth holds a position of <b>Sales Representative</b> in our WA department, (Seattle USA). Joined our company on Friday , 01 May 2009.</div></div>
            </ContentTemplate>
        </AccordionItem>
    </AccordionItems>
</SfAccordion>

<style>
    img {
        height: 40px;
        width: 50px;
        margin-top: 13px;
    }

    .container {
        display: inline-flex;
        width: auto;
        padding: 0;
    }

    .content {
        margin-left: 10px;
    }
</style>
    Blazor Accordion with header and content Template

    See also

    1. Getting Started with Syncfusion® Blazor Web Assembly App in Visual Studio or .NET CLI
    2. Getting Started with Syncfusion® Blazor Web App in Visual Studio or .NET CLI

    NOTE

    You can also explore our Blazor Accordion example that shows you how to render and configure the Accordion.