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Microsoft .NET

Microsoft .NET | News, how-tos, features, reviews, and videos

how-to

How to use frozen collections in C#

The FrozenSet and FrozenDictionary classes introduced in .NET 8 are immutable collections optimized for fast look-ups. Here’s how to take advantage of them.

Jun 12, 2025 11 mins
C# Development Libraries and Frameworks Microsoft .NET
news

C# 14 introduces file-based apps

New capability in .NET 10 Preview 4 allows developers to run a stand-alone C# file directly, without requiring a project file or project structure.

Jun 3, 2025 2 mins
C# Microsoft .NET Programming Languages
news

.NET Aspire update includes AI debugging via GitHub Copilot

.NET Aspire 9.3 also boasts dashboard improvements for resource tracing and easier access to a resource’s telemetry, commands, URLs, and more.

May 23, 2025 3 mins
Development Tools Generative AI Microsoft .NET
how-to

How to add user context to request traces in ASP.NET Core

User context makes life easier when tracing Http requests in ASP.NET Core applications. It’s easy to add with custom middleware.

May 22, 2025 7 mins
C# Development Libraries and Frameworks Microsoft .NET
news

Visual Studio previews agent mode for multi-step coding tasks

GitHub Copilot agent mode in Visual Studio 2022 17.14 can create apps from scratch, refactor code across multiple files, write and run tests, and apply code changes iteratively, Microsoft said.

May 16, 2025 3 mins
C++ Generative AI Visual Studio
news

Uno Platform introduces unified rendering engine

Skia rendering engine promises ‘massive’ improvements in startup times and UI rendering performance on all target platforms, according to the company.

May 15, 2025 2 mins
Development Libraries and Frameworks Microsoft .NET Software Development
news

.NET 10 Preview 4 enhances Zip processing, JIT compilation, Blazor WebAssembly

Latest preview of Microsoft’s application development platform also brings improvements for the F# language and Windows Presentation Foundation.

May 14, 2025 3 mins
Microsoft .NET Programming Languages Software Development
news

C# 14 introduces extension members

C# 14 preview in .NET 10 Preview 3 adds static extension methods, instance and static extension properties, and a new optional alternative syntax for extension members.

May 12, 2025 2 mins
C# Microsoft .NET Programming Languages
how-to

How to use the IServiceProvider interface in ASP.NET Core

Take advantage of the IServiceProvider interface to resolve service dependencies in ASP.NET Core and improve the maintainability and testability of your applications.

May 1, 2025 10 mins
C# Development Libraries and Frameworks Microsoft .NET
news

Microsoft previews SignalR client for iOS

SignalR Swift client allows iOS developers to build chat, live streams, and other real-time communications features into their SwiftUI or UIKit apps.

Apr 28, 2025 2 mins
Microsoft .NET Mobile Development Swift