Blazor Update Adds Reusable Component Libraries -- Visual Studio Magazine

Blazor Update Adds Reusable Component Libraries

By David Ramel
04/19/2018

Microsoft has updated Blazor -- for full-stack Web apps coded in C# -- with new features including the ability to create reusable component libraries.

Blazor leverages the new WebAssembly project that converts higher-level language code to assembly-like code for performance better than JavaScript. WebAssembly also works with programming languages such as C, C++ and Rust. While Blazor/WebAssembly has been described as the "death" of JavaScript by some developers, Microsoft denies such a characterization, saying it's rather just another tool to be used, even in conjunction with JavaScript.

In fact, the Blazor 0.2.0 update announced this week allows for JavaScript interop as part of the new ability to create reusable component libraries.

**[Click on image for larger view.]** A Blazor Component *(source: Microsoft).*

"Blazor apps can call browser APIs or JavaScript libraries through JavaScript interop," Microsoft's Daniel Roth announced in a post. "Library authors can create .NET wrappers for browser APIs or JavaScript libraries and share them as reusable class libraries."

Those reusable libraries can provide Web UI components to be used in different projects while maintaining state and handling events. Developers can create the components, package and share them with others.

Other new features in the update include:

Improved syntax for event handling and data binding
Build on save in Visual Studio
Conditional attributes
HttpClient improvements

Roth thanked community volunteers for helping out with the improvements, noting that Blazor has already been put to use in developing real-world Web apps.

Meanwhile, WebAssembly itself is forging ahead, with v 1.0 shipping in four major browser engines. Mozilla, a primary backer of the project, recently offered up a Web-based IDE to code WebAssembly, though at this stage it's primarily a learning/fiddle (testing) type of project. With further refinement, its features could be provided to Visual Studio Code and other code editors/IDEs via extensions.

About the Author

David Ramel is an editor and writer at Converge 360.

Printable Format

comments powered by Disqus

Featured

Microsoft Revamps Fledgling AutoGen Framework for Agentic AI

Only at v0.4, Microsoft's AutoGen framework for agentic AI -- the hottest new trend in AI development -- has already undergone a complete revamp, going to an asynchronous, event-driven architecture.
IDE Irony: Coding Errors Cause 'Critical' Vulnerability in Visual Studio

In a larger-than-normal Patch Tuesday, Microsoft warned of a "critical" vulnerability in Visual Studio that should be fixed immediately if automatic patching isn't enabled, ironically caused by coding errors.
Building Blazor Applications

A trio of Blazor experts will conduct a full-day workshop for devs to learn everything about the tech a a March developer conference in Las Vegas keynoted by Microsoft execs and featuring many Microsoft devs.
Gradient Boosting Regression Using C#

Dr. James McCaffrey from Microsoft Research presents a complete end-to-end demonstration of the gradient boosting regression technique, where the goal is to predict a single numeric value. Compared to existing library implementations of gradient boosting regression, a from-scratch implementation allows much easier customization and integration with other .NET systems.
Microsoft Execs to Tackle AI and Cloud in Dev Conference Keynotes

AI unsurprisingly is all over keynotes that Microsoft execs will helm to kick off the Visual Studio Live! developer conference in Las Vegas, March 10-14, which the company described as "a must-attend event."