csharp

A runnable Windows-only .NET console sample that captures virtual-screen bounds, disposes drawing resources and saves a PNG.

A runnable .NET 8 example of a readonly field exposed by UnsafeAccessor, with explicit limits on mutation and observable runtime behavior.

Run a reproducible .NET 8 benchmark comparing UnsafeAccessor, reflection, cached reflection, cached delegates and direct calls with observable work.

Starting with C# 12, a new ExperimentalAttribute lets you mark types, methods, properties, or assemblies as experimental. Learn how to use it with diagnosticId, pragma tags, and UrlFormat.

The ref readonly modifier in C# provides a more transparent way of passing read-only references. Learn how it improves on the in modifier with better constraints and caller visibility.

The easiest way to shuffle an array in C# is using Random.Shuffle, introduced in .NET 8. It works in-place on both arrays and spans.

Learn what causes a NullReferenceException in C#, how to debug it, and how to prevent it using null checks, the null-conditional operator, and nullable reference types.

Learn how to add or remove TypeInfoResolver instances on existing JsonSerializerOptions using the new TypeInfoResolverChain property in .NET 8.

Learn about C# 12 interceptors, an experimental .NET 8 compiler feature that lets you replace method calls at compile time using the InterceptsLocation attribute.

Fix the ASP.NET Core Identity error where AppDbContext can't be converted to IUserStore by adding AddEntityFrameworkStores to your identity configuration.