Asp.Net Core Blazor Web Assembly Developing Notes

Asp.Net Core Blazor Web Assembly Developing Notes

Introduction

Blazor is an open-source framework developed by Microsoft for building web applications using C# and .NET Core. It allows developers to build interactive user interfaces (UIs) in a browser without the need for a full-page refresh, making it ideal for building real-time, responsive applications. Blazor Web Assembly (WASM) is a new feature of Blazor that enables developers to build web applications using WebAssembly modules, which are compiled to machine code and executed directly in the browser. In this blog post, we will explore the benefits of using Blazor WASM for building web applications and provide an overview of how to get started with developing a Blazor WASM application.

Benefits of using Blazor WASM

1. Performance
Blazor WASM provides faster performance than traditional JavaScript-based web applications because it eliminates the need for a full-page refresh, which reduces the amount of data that needs to be transferred between the server and the client. This results in faster load times and smoother user experiences.

2. Interactivity
Blazor WASM allows developers to build highly interactive UIs that respond to user input in real-time. This is achieved through the use of WebAssembly modules, which are compiled to machine code and executed directly in the browser.

3. Portability
Blazor WASM applications can be deployed on any platform that supports WebAssembly, including desktop and mobile browsers, as well as web servers and cloud platforms. This makes it easy to build cross-platform applications that can run on a wide range of devices and operating systems.

4. Productivity
Blazor WASM provides developers with a powerful set of tools and libraries for building web applications quickly and efficiently. It also integrates seamlessly with existing .NET Core projects, making it easy to leverage existing code and expertise.

Getting started with Blazor WASM development

To get started with Blazor WASM development, you will need to have the following tools and prerequisites

1. Visual Studio
You will need to install Visual Studio, which is a popular integrated development environment (IDE) for building .NET Core applications.

2. .NET Core SDK
You will need to install the .NET Core SDK, which includes the tools and libraries needed to develop Blazor WASM applications.

3. Blazor WebAssembly template
You can download the Blazor WebAssembly template from the Microsoft website. This template provides a starting point for building your own Blazor WASM application.

4. WebAssembly module
You will need to create a WebAssembly module that contains the code for your application. This module will be compiled to machine code and executed directly in the browser.

Once you have these tools and prerequisites, you can follow these steps to get started with Blazor WASM development

1. Create a new .NET Core project in Visual Studio.

2. Add the Blazor WebAssembly template to your project.

3. Replace the contents of the template with your own code.

4. Build and run your application on a local web server or in a browser.

Code example

Here is an example of how you might create a simple Blazor WASM application using C# and .NET Core

csharp
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Components;
using Microsoft.Extensions.DependencyInjection;
using System.Runtime.InteropServices;
namespace BlazorWebAssemblyExample
{
    public class Program
    {
        [STAThread]
        static void Main(string[] args)
        {
            var host = new WebAssemblyHostBuilder()
                .UseUrls("https
//localhost
5001/")
                .Build();
            host.RunAsync().WaitForCompletion();
        }
    }
}

In this example, we are creating a simple Blazor WASM application that uses the WebAssemblyHostBuilder class to create a new web assembly host and run our application on a local web server. We are also using the UseUrls method to specify the URL of our WebAssembly module, which will be compiled to machine code and executed directly in the browser.

Conclusion

Blazor WASM is a powerful new feature of Blazor that enables developers to build web applications using WebAssembly modules, which are compiled to machine code and executed directly in the browser. It provides faster performance,