Getting Started with Blazor Spinner in Blazor WASM App

19 Aug 20265 minutes to read

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

Create a new Blazor WebAssembly App

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

Run the following command to create a new Blazor WebAssembly App.

dotnet new blazorwasm -o BlazorApp
cd BlazorApp

Alternatively, create a Blazor WebAssembly App using Visual Studio Code via Microsoft Templates, the Syncfusion® Blazor Extension, or the C# Dev Kit extension.

Run the following command to create a new Blazor WebAssembly App.

dotnet new blazorwasm -o BlazorApp
cd BlazorApp

Install the required Blazor packages

Install Syncfusion.Blazor.Spinner, Syncfusion.Blazor.Buttons and Syncfusion.Blazor.Themes NuGet packages. All Syncfusion Blazor packages are available on nuget.org. See the NuGet packages topic for details.

  1. Go to Tools → NuGet Package Manager → Manage NuGet Packages for Solution.
  2. Search the required NuGet packages (Syncfusion.Blazor.Spinner and Syncfusion.Blazor.Themes) and install them.

Alternatively, you can install the same packages using the Package Manager Console with the following commands.

Install-Package Syncfusion.Blazor.Spinner -Version 34.2.2
Install-Package Syncfusion.Blazor.Buttons -Version 34.2.2
Install-Package Syncfusion.Blazor.Themes -Version 34.2.2

Open the terminal and run the following commands.

dotnet add package Syncfusion.Blazor.Spinner -v 34.2.2
dotnet add package Syncfusion.Blazor.Buttons -v 34.2.2
dotnet add package Syncfusion.Blazor.Themes -v 34.2.2

Open the command prompt and run the following commands.

dotnet add package Syncfusion.Blazor.Spinner -v 34.2.2
dotnet add package Syncfusion.Blazor.Buttons -v 34.2.2
dotnet add package Syncfusion.Blazor.Themes -v 34.2.2

Add import namespaces

After the packages are installed, open the ~/_Imports.razor file and import the Syncfusion.Blazor and Syncfusion.Blazor.Spinner namespaces.

@using Syncfusion.Blazor
@using Syncfusion.Blazor.Spinner

Register the Blazor service

Open the Program.cs file in Blazor WebAssembly App and register the Blazor service and include the required namespace reference using Syncfusion.Blazor; at the top.

builder.Services.AddSyncfusionBlazor();

Add stylesheet and script resources

The theme stylesheet and script can be accessed from NuGet through Static Web Assets. Include the stylesheet at the end of the <head> section in the ~wwwroot/index.html file.

<link href="_content/Syncfusion.Blazor.Themes/fluent2.css" rel="stylesheet" />

Include the required script references at the end of the <body> section in the ~wwwroot/index.html file to enable Spinner functionality.

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

Add Blazor Spinner component

Open a Razor file located in the ~/Pages/*.razor (for example, Home.razor) and add the Blazor Spinner component inside the razor file.

@using Syncfusion.Blazor.Buttons

<div>
    <SfButton @onclick="@ClickHandler">Show/Hide Spinner</SfButton>
    <div id="container">
        <SfSpinner @bind-Visible="@VisibleProperty">
        </SfSpinner>
    </div>
</div>

@code {
    private bool VisibleProperty { get; set; } = false;

    private async Task ClickHandler()
    {
        this.VisibleProperty = true;
        await Task.Delay(2000);
        this.VisibleProperty = false;
    }
}

Run the application

Press Ctrl+F5 (Windows) or ⌘+F5 (macOS) to launch the application. The Blazor Spinner component will render in your default web browser.

Open the terminal and run the following command.

dotnet run

Open the command prompt and run the following command.

dotnet run
Blazor Spinner Component

View sample in GitHub.

See also

  1. Getting Started with Blazor Web App
  2. Getting Started with Blazor Server App
  3. Getting Started with Blazor WebAssembly Standalone App