Getting Started with Blazor: Build Web Apps Using C#

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🚀 Getting Started with Blazor: Build Web Apps Using C#

Blazor is a modern web UI framework by Microsoft that allows you to build interactive web applications using C# instead of JavaScript. It's part of the ASP.NET Core ecosystem and uses Razor syntax (a mix of HTML and C#) to define user interfaces.

If you're a .NET developer, Blazor lets you use your skills for both client-side and server-side web development — all in one language!

📦 Two Ways to Run Blazor

Hosting Model Description Best For
Blazor WebAssembly (WASM) Runs entirely in the browser using WebAssembly. Doesn’t require a server for UI interactions. Offline-capable, client-heavy apps
Blazor Server Executes UI logic on the server using SignalR to sync with the browser in real time. Enterprise apps with real-time needs

💡 Why Use Blazor?

  • Use C# Everywhere: Eliminate the need for JavaScript by writing full-stack apps in C#.
  • Code Reusability: Share models, validation, and logic across client and server.
  • Component-Based: Build modular UI components like in React or Angular.
  • Integrated with .NET: Works seamlessly with Entity Framework, Identity, SignalR, etc.
  • Great Dev Experience: Use Visual Studio, Hot Reload, IntelliSense, and more.
  • WebAssembly Power: Run apps offline in a secure, sandboxed browser environment.

🧰 What Can You Build with Blazor?

  • Admin Dashboards & Internal Tools
  • Single Page Applications (SPAs)
  • Progressive Web Apps (PWAs)
  • Real-Time Apps (e.g., chat, live monitoring)
  • E-Commerce Platforms
  • Content Management Systems (CMS)
  • Data Entry Forms & Reports

📌 When to Use Blazor

  • Your team knows C# and wants to avoid JavaScript.
  • You need to reuse logic across client and server.
  • You’re integrating closely with ASP.NET Core APIs.
  • You want to build modern, interactive UI using .NET tools.
💡 Tip: You can start a new Blazor WebAssembly project using:
dotnet new blazorwasm -o MyBlazorApp

🧪 Example: A Simple Component

This is a basic Blazor component (Counter.razor):

@page "/counter"

<h3>Counter</h3>

<p>Current count: @count</p>

<button @onclick="Increment">Click me</button>

@code {
    int count = 0;

    void Increment() {
        count++;
    }
}

✅ Conclusion

Blazor allows C# developers to build powerful web apps with the same language and tooling they already know. Whether it’s a dashboard, real-time app, or a full-featured PWA, Blazor is a modern and productive choice that fits perfectly into the .NET world.

It’s fast, flexible, and C#-powered. Try Blazor today!

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