Learn BLAZOR with Real Code Examples
Updated Nov 25, 2025
Explain
Blazor allows developers to write web UIs in C# instead of JavaScript.
It supports two hosting models: Blazor WebAssembly (client-side) and Blazor Server (server-side).
Provides component-based architecture for reusable UI elements.
Integrates seamlessly with ASP.NET Core backend services.
Widely used for enterprise web apps, dashboards, and full-stack .NET applications.
Core Features
Razor syntax for UI components
Dependency Injection (DI) support
Event handling in C#
JavaScript interop when needed
State management via cascading values and parameters
Basic Concepts Overview
Razor components are reusable UI blocks
Data binding supports one-way and two-way flows
Dependency Injection enables service injection
Routing maps URLs to components
Event handling uses standard C# methods
Project Structure
Pages/ - routed UI components
Shared/ - reusable components
wwwroot/ - static files (JS, CSS)
Program.cs - app startup and DI configuration
App.razor - routing and root component
Building Workflow
Create a new Blazor project
Develop Razor components for UI
Inject services for business logic
Bind data and handle events
Deploy app as WebAssembly or Server app
Difficulty Use Cases
Beginner: build simple forms and data display
Intermediate: implement CRUD with APIs
Advanced: complex state management and nested components
Expert: full enterprise dashboard with authentication
Architect: integrate WebAssembly, server-side, and APIs
Comparisons
Blazor vs React: C# vs JavaScript, full-stack vs frontend-only
Blazor vs Angular: .NET integration vs TypeScript ecosystem
Blazor vs Vue: component-based similarity, different languages
Blazor WebAssembly vs Server: client-side vs server-side execution
Blazor vs Razor Pages: SPA interactivity vs traditional page model
Versioning Timeline
2018 – Blazor first announced by Microsoft
2019 – Blazor WebAssembly experimental release
2020 – Blazor WebAssembly official release with .NET 5
2021–2022 – .NET 6 and 7 improvements, server-side updates
2023–2025 – Blazor maturation, component libraries, and tooling enhancements
Glossary
Razor: templating syntax for components
Component: reusable UI block
WebAssembly: client-side runtime for .NET
Dependency Injection: service injection system
Interop: integration with JavaScript