.NET is a free, cross-platform, open source developer platform for building many different types of applications. With .NET, you can use multiple languages, editors, and libraries to build for web, ...

I first learned about the C# compiler as a service workings way back in 2008 at PDC. At that time, Anders Hejlsberg gave a brief preview of what was to come by showing off a C# ...

Migrate your .NET apps from the Azure OpenAI SDK (Azure.AI.OpenAI) with Chat Completions API to the OpenAI SDK (OpenAI) with Responses API. GPT-5 and newer models require the Responses API. Migrating ...

This version of ASP.NET Core is no longer supported. For more information, see the .NET and .NET Core Support Policy. For the current release, see the .NET 10 version of this article. Without known ...

Uno Platform 5.0 shipped this week with the ability to create entire cross-platform applications -- including markup -- from a single codebase written in one language, C#. The open source Uno Platform ...

I’m trying to do something I thought would take me 10 minutes to get working, but I keep hitting walls even with ChatGPT’s help as the examples it generates don’t work. using OpenAI.Assistants; using ...

Load .NET assemblies and call .NET APIs in-proc from a JavaScript application. Load JavaScript packages and call JS APIs in-proc from a .NET application. Interop is high-performance and supports ...