Getting Started with Blazor Toast Component

30 Jan 20245 minutes to read

This section briefly explains about how to include Blazor Toast component in your Blazor Server App and Blazor WebAssembly App using Visual Studio.

To get start quickly with Blazor Toast component, check on this video or GitHub sample.


Create a new Blazor App in Visual Studio

You can create a Blazor Server App or Blazor WebAssembly App using Visual Studio via Microsoft Templates or the Syncfusion Blazor Extension.

Install Syncfusion Blazor Notifications and Themes NuGet in the App

To add Blazor Toast component in the app, open the NuGet package manager in Visual Studio (Tools → NuGet Package Manager → Manage NuGet Packages for Solution), search and install Syncfusion.Blazor.Notifications and Syncfusion.Blazor.Themes. Alternatively, you can utilize the following package manager command to achieve the same.

Install-Package Syncfusion.Blazor.Notifications -Version 26.1.35
Install-Package Syncfusion.Blazor.Themes -Version 26.1.35


Syncfusion Blazor components are available in Refer to NuGet packages topic for available NuGet packages list with component details.

Register Syncfusion Blazor Service

Open ~/_Imports.razor file and import the Syncfusion.Blazor and Syncfusion.Blazor.Notifications namespace.

@using Syncfusion.Blazor
@using Syncfusion.Blazor.Notifications

Now, register the Syncfusion Blazor Service in the ~/Program.cs file of your Blazor Server App or Blazor WebAssembly App.

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

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

var app = builder.Build();
using Microsoft.AspNetCore.Components.Web;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Syncfusion.Blazor;

var builder = WebAssemblyHostBuilder.CreateDefault(args);

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

await builder.Build().RunAsync();

Add stylesheet and script resources

The theme stylesheet and script can be accessed from NuGet through Static Web Assets. Reference the stylesheet and script in the <head> of the main page as follows:

  • For .NET 6 Blazor Server app, include it in ~/Pages/_Layout.cshtml file.

  • For .NET 7 Blazor Server app, include it in the ~/Pages/_Host.cshtml file.

  • For Blazor WebAssembly app, include it in the ~/index.html file.

    <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>


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 Blazor Toast component

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

<div class="col-lg-12 control-section toast-default-section">
    <SfToast ID="toast_default" @ref="ToastObj" Title="Adaptive Tiles Meeting" Content="@ToastContent" Timeout="5000" Icon="e-meeting">
        <ToastPosition X="@ToastPosition"></ToastPosition>
    <div class="col-lg-12 col-sm-12 col-md-12 center">
        <div id="toastBtnDefault" style="margin: auto;text-align: center">
            <button class="e-btn" @onclick="@ShowOnClick">Show Toasts</button>
            <button class="e-btn" @onclick="@HideOnClick">Hide All</button>
    #toast_default .e-meeting::before {
        content: "\e705";
        font-size: 17px;

    .bootstrap4 #toast_default .e-meeting::before {
        content: "\e763";
        font-size: 20px;
@code {
    SfToast ToastObj;
    private string ToastPosition = "Right";
    private string ToastContent = "Conference Room 01 / Building 135 10:00 AM-10:30 AM";
    private async Task ShowOnClick()
        await this.ToastObj.ShowAsync();
    private async Task HideOnClick()
        await this.ToastObj.HideAsync("All");
  • Press Ctrl+F5 (Windows) or +F5 (macOS) to launch the application. This will render the Syncfusion Blazor Toast component in your default web browser.
Blazor Toast Component

See Also


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