Getting Started with Blazor Web App

7 Nov 20259 minutes to read

This article provides step-by-step instructions for building a Blazor Web App with the Blazor DataGrid component using Visual Studio, Visual Studio Code, and the .NET CLI.

To get started quickly with a Blazor Web App, watch the following video.

Using Playground

Blazor Playground allows you to interact with our Blazor components directly in your web browser without need to install any required NuGet packages. By default, the Syncfusion.Blazor package is included in this.

Using Syncfusion® Blazor Templates

You can create a Blazor Web App using Syncfusion® Blazor Templates in both Visual Studio and Visual Studio Code.

Manually Creating a Project

This section provides a brief guide on how to manually create a Blazor Web App using Visual Studio, Visual Studio Code, and the .NET CLI.

Prerequisites

Create a new Blazor Web App in Visual Studio

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

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

Install Syncfusion® Blazor Grid and Themes NuGet in the Blazor Web App

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

Install-Package Syncfusion.Blazor.Grid -Version 31.2.2
Install-Package Syncfusion.Blazor.Themes -Version 31.2.2

NOTE

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

Prerequisites

Create a new Blazor Web App in Visual Studio Code

You can create a Blazor Web App using Visual Studio Code via Microsoft Templates or the Syncfusion® Blazor Extension.

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, in a Blazor Web App with the Auto interactive render mode, use the following commands.

dotnet new blazor -o BlazorWebApp -int Auto
cd BlazorWebApp
cd BlazorWebApp.Client

Install Syncfusion® Blazor Grid 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 the Syncfusion.Blazor.Grid and Syncfusion.Blazor.Themes NuGet packages and ensure all dependencies are installed.
dotnet add package Syncfusion.Blazor.Grid -v 31.2.2
dotnet add package Syncfusion.Blazor.Themes -v 31.2.2
dotnet restore

NOTE

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

Prerequisites

Latest version of the .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).

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).

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, in a Blazor Web App with the Auto interactive render mode, use the following commands.

dotnet new blazor -o BlazorWebApp -int Auto
cd BlazorWebApp
cd BlazorWebApp.Client

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

Install Syncfusion® Blazor Grid and Themes NuGet in the App

Here’s an example of how to add the Blazor DataGrid component to the application by using the following commands in a command prompt (Windows), terminal (Linux and macOS), or PowerShell to install the Syncfusion.Blazor.Grid and Syncfusion.Blazor.Themes NuGet packages. See Install and manage packages using the dotnet CLI 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.

dotnet add package Syncfusion.Blazor.Grid --version 31.2.2
dotnet add package Syncfusion.Blazor.Themes --version 31.2.2
dotnet restore

NOTE

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

Add Import Namespaces

Open the ~/_Imports.razor file in the client project and import the Syncfusion.Blazor and Syncfusion.Blazor.Grids namespaces.

@using Syncfusion.Blazor
@using Syncfusion.Blazor.Grids

Register Syncfusion® Blazor Service

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

If the Interactive Render Mode is set to WebAssembly or Auto, register the Syncfusion® Blazor service in both ~/Program.cs files of the Blazor Web App.

...
...
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 DataGrid component

Add the Syncfusion® Blazor DataGrid component in the ~/Components/Pages/*.razor file. If the interactivity location is set to Per page/component in the web app, define a render mode at the top of the ~Pages/*.razor 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.

@* desired render mode define here *@
@rendermode InteractiveAuto
@using Syncfusion.Blazor.Grids

<SfGrid DataSource="@Orders" />

@code{
    public List<Order> Orders { get; set; }

    protected override void OnInitialized()
    {
        Orders = Enumerable.Range(1, 10).Select(x => new Order()
        {
            OrderID = 1000 + x,
            CustomerID = (new string[] { "ALFKI", "ANANTR", "ANTON", "BLONP", "BOLID" })[new Random().Next(5)],
            Freight = 2 * x,
            OrderDate = DateTime.Now.AddDays(-x),
        }).ToList();
    }

    public class Order {
        public int? OrderID { get; set; }
        public string CustomerID { get; set; }
        public DateTime? OrderDate { get; set; }
        public double? Freight { get; set; }
    }
}
  • Press Ctrl+F5 (Windows) or ⌘+F5 (macOS) to launch the application. This will render the Syncfusion® Blazor DataGrid component in the default web browser.
Blazor DataGrid Component