Top Features of Microsoft Blazor That You Need to Know

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As a newly launched framework, there is might a lot of things that you do not know about the Microsoft Blazor. Here we explain some amazing features of the Microsoft Blazor that you need to know.

Microsoft Blazor is a new .NET web framework that runs on WebAssembly. It’s very new to the world of web development and has come a long way in a very short period of time. While Microsoft Blazor has got much more popular in recent months, still there are many misconceptions about what this framework is capable of. We explore some of the less but important features of the Microsoft Blazor in this article.

Microsoft Blazor can do anything as HTML and CSS do

One of the most often asked questions is when approaching Microsoft Blazor is regarding the use of user interface framework, CSS library, or specific CSS feature. The answer resounds YES. While Blazor uses Razor templates to create components, the result is HTML rendered in the browser. The HTML and CSS generated by Blazor is not different than any other HTML or CSS. This means all valid HTML and CSS are valid within a Blazor application. This means you can use all CSS features including media queries for the responsive design, CSS custom properties, and pre-processors like SAAS.

  • Form Components
  • CSS Isolation
  • Fun Fact

Microsoft Blazor can do anything that JavaScript can do

It doesn’t mean that Blazor is limited when working with the browser just because it uses .NET and WebAssembly. The Blazor framework makes common tasks easier, like working with the DOM, fetching data over HTTP, as well as client-side routing. When Blazor is enabled by .NET and WebAssembly, it’s not restricted by it. Microsoft Blazor has full access to the browser’s JavaScript APIs via JavaScript interoperability.

A Blazor application can call JavaScript functions from .NET methods and .NET methods from JavaScript functions. JavaScript interoperability is used when the Blazor framework lacks an API or component for the desired feature, or when developers would like to utilize the JavaScript ecosystem.

Blazor Can’t Do What JavaScript Cannot

Web standards and browser capabilities have developed into a feature-rich and secure environment. Web standard technologies like WebAssembly not only enables Blazor but restricts it to the same criteria as JavaScript. Microsoft Blazor runs on .NET and WebAssembly does not grant it special abilities that can reach outside of the browser’s security sandbox. In Short Blazor and .NET code are not able to read the registry, detect the currently logged-in users, or access Outlook accounts.

Combining MVC + Blazor in the same project

If you’re working on an ASP.NET Core MVC or Razor pages application, then still you can use Blazor. Since Blazor is part of ASP.NET Core and it’s able to integrate with existing applications quite nicely. This behavior offers a migration path to Blazor or adds additional flexibility to your codebase. To use this feature you need to use the “component tag helper” to render the desired Razor Component in an MVC application.

SignalR Without JavaScript

When Blazor was released first, it was only possible to use SignalR through JavaScript libraries. Then after in newer versions, this has been changed and now Blazor has a NuGet package that enables to use of SignalR without the need for JavaScript. The Microsoft.AspNetCore.SignalR.Client package is needed to connect your Blazor app to a SignalR hub and the best part is you can do it all through C# code. With the help of the SignalR HubConnection class, a Blazor application is able to connect with the hub and can send and receive the commands.

gRPC and Protobuf

.NET fully supports gRPC, a modern open-source high-performance RPC framework. With the release of .NET 5.0; ASP.NET Core and Blazor both received integrated support for gRPC. Support includes a library for creating a gRPC server in ASP.NET and a gRPC client in Blazor WebAssembly. gRPC applications communicate between client and service via a channel.


Blazor is a very new web development framework that launched recently. In this blog, we have explained some important and amazing features of Microsoft Blazor that every ASP.NET developers should know who are working with a .NET Development Company. Very few of the ASP.NET Development Companies have been started to work on Microsoft Blazor. If you want to make an application with Microsoft Blazor for your business then you need to contact a well-known and responsible Microsoft Blazor Development Company or a skillful and dedicated expert.


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