Getting Started with Blazor Spinner Component

20 Sep 20213 minutes to read

This section briefly explains how to include a Spinner component in your Blazor Server-side application. You can refer to our Getting Started with Syncfusion Blazor for Server-Side Spinner in Visual Studio 2019 page for the introduction and configuring the common specifications.

Importing Syncfusion Blazor component in the application

  • Install Syncfusion.Blazor.Spinner NuGet package to the application by using the NuGet Package Manager.

  • You can add the client-side resources through CDN or from NuGet package in the HEAD element of the ~/Pages/_Host.cshtml page.

      <head>
          <environment include="Development">
          ....
          ....
              <link href="_content/Syncfusion.Blazor/styles/fabric.css" rel="stylesheet" />
              <!---CDN--->
              @*<link href="https://cdn.syncfusion.com/blazor/18.4.42/styles/fabric.css" rel="stylesheet" />*@
      </environment>
      </head>

    For Internet Explorer 11 kindly refer the polyfills. Refer the documentation for more information.

      <head>
      <environment include="Development">
          <link href="_content/Syncfusion.Blazor/styles/fabric.css" rel="stylesheet" />
          <script src="https://github.com/Daddoon/Blazor.Polyfill/releases/download/3.0.1/blazor.polyfill.min.js"></script>
      </environment>
      </head>

Adding component package to the application

Open ~/_Imports.razor file and import the Syncfusion.Blazor.Spinner package.

@using Syncfusion.Blazor.Spinner

Add SyncfusionBlazor service in Startup.cs

Open the Startup.cs file and add services required by Syncfusion components using services.AddSyncfusionBlazor() method. Add this method in the ConfigureServices function as follows.

using Syncfusion.Blazor;
namespace BlazorApplication
{
    public class Startup
    {
        ....
        ....
        public void ConfigureServices(IServiceCollection services)
        {
            ....
            ....
            services.AddSyncfusionBlazor();
        }
    }
}

Add Spinner component

To initialize the Spinner component, add the below code to your Index.razor view page which is present under ~/Pages folder.

The Blazor Spinner component is used to display the loading indication with a specified target area while loading.

Initialization

Import the Syncufusion.Blazor.Spinner NuGet package and initialize the Spinner component by adding the spinner as a child of the target element where the spinner needs to be shown.

The following code explains how to initialize a simple Spinner in the Blazor Razor page.

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

<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

After successful compilation of your application, simply press F5 to run the application.

The output will be as follows.

Spinner Default