Blazor

Overview

Blazor is a .NET web framework for building interactive client-side web UIs using C# and Razor syntax. It supports multiple hosting models: Blazor Server (SignalR-based), Blazor WebAssembly (client-side .NET runtime), and the unified model introduced in .NET 8 that combines static server-side rendering with per-component interactivity. Blazor components are reusable .razor files that encapsulate markup, logic, and state. The framework integrates natively with ASP.NET Core for authentication, dependency injection, and middleware.

Component Fundamentals

Blazor components are the building blocks of the UI. Each component is a .razor file with markup and C# code.

@page "/customers"
@using Microsoft.AspNetCore.Components
@using MyApp.Services
@inject ICustomerService CustomerService
@inject NavigationManager Navigation

<PageTitle>Customers</PageTitle>