Learn Blazor - 10 Code Examples & CST Typing Practice Test
Blazor is a Microsoft framework for building interactive web applications using C# and .NET, running client-side via WebAssembly or server-side via SignalR.
Learn BLAZOR with Real Code Examples
Updated Nov 25, 2025
Practical Examples
Build a counter component
Fetch data from an ASP.NET Core API
Implement login and authentication
Create a reusable navigation menu
Develop a dashboard with charts and tables
Troubleshooting
Check component namespaces and file names
Ensure services are registered in DI container
Verify routing paths in App.razor
Inspect browser console for WebAssembly errors
Use debugger in Visual Studio for server-side apps
Testing Guide
Unit-test components with bUnit
Integration tests with TestServer
End-to-end tests with Playwright or Selenium
Test API calls separately
Validate routing and navigation logic
Deployment Options
Static WebAssembly hosting (Azure Static Web Apps, Netlify)
Server-side Blazor on IIS/Kestrel
Docker containers for scalable deployment
Cloud hosting with Azure App Service
Hybrid hosting with CDNs for static assets
Tools Ecosystem
Visual Studio & VS Code
.NET CLI
NuGet packages for libraries
Blazor component libraries (Radzen, MudBlazor, Syncfusion)
Browser developer tools for debugging
Integrations
ASP.NET Core APIs
Entity Framework Core for database access
Authentication services (IdentityServer, Azure AD)
Third-party JS libraries via JS interop
Cloud hosting (Azure, AWS, Docker)
Productivity Tips
Reuse components across pages
Leverage DI for shared services
Use async/await for API calls
Lazy-load large modules in WebAssembly
Debug in Visual Studio for server-side apps
Challenges
Learning Razor syntax for complex UIs
Managing component state efficiently
Optimizing WebAssembly load times
Integrating third-party JS libraries
Deploying server-side apps at scale
Frequently Asked Questions about Blazor
What is Blazor?
Blazor is a Microsoft framework for building interactive web applications using C# and .NET, running client-side via WebAssembly or server-side via SignalR.
What are the primary use cases for Blazor?
Building interactive web applications in C#. Creating reusable UI components. Developing full-stack .NET web apps. Integrating with ASP.NET Core APIs. Rapid prototyping and enterprise dashboards
What are the strengths of Blazor?
Write web apps entirely in C#. Share code between client and server. Strong tooling via Visual Studio and .NET CLI. Integrated security and authentication features. Enterprise-grade framework with long-term support
What are the limitations of Blazor?
WebAssembly apps may have larger initial load. Limited third-party UI components compared to JavaScript frameworks. Some JavaScript interop is still needed for advanced browser APIs. SEO optimization is more complex for WebAssembly apps. Smaller developer ecosystem than React or Angular
How can I practice Blazor typing speed?
CodeSpeedTest offers 10+ real Blazor code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.