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Tag: dotnet-11

297 posts · Page 27 of 30

2026-04-26 csharp dotnet dotnet-11

How to unit-test code that uses HttpClient

A complete guide to testing HttpClient in .NET 11: why you should not mock HttpClient directly, how to write a stub HttpMessageHandler, swapping the primary handler with IHttpClientFactory, verifying Polly retries, and the WireMock.Net option.

2026-04-25 dotnet dotnet-11 performance

How to profile a .NET app with dotnet-trace and read the output

A complete guide to profiling .NET 11 apps with dotnet-trace: install, pick the right profile, capture from startup, and read the .nettrace output in PerfView, Visual Studio, Speedscope, or Perfetto.

2026-04-25 csharp dotnet dotnet-11

How to use Channels instead of BlockingCollection in C#

System.Threading.Channels is the async-first replacement for BlockingCollection in .NET 11. This guide shows how to migrate, how to choose bounded vs unbounded, and how to handle backpressure, cancellation, and graceful shutdown without deadlocking.

2026-04-25 csharp dotnet dotnet-11

How to write a custom JsonConverter in System.Text.Json

A complete guide to writing custom JsonConverter<T> for System.Text.Json in .NET 11: when you actually need one, how to navigate Utf8JsonReader correctly, how to handle generics with JsonConverterFactory, and how to stay AOT-friendly.

2026-04-24 dotnet dotnet-11 csharp

How to Generate Strongly Typed Client Code from an OpenAPI Spec in .NET 11

Use Kiota, Microsoft's official OpenAPI code generator, to produce a fluent, strongly typed C# client from any OpenAPI spec. Step-by-step: install, generate, wire into ASP.NET Core DI, and handle authentication.

2026-04-24 dotnet-11 csharp-14 performance

How to read a large CSV in .NET 11 without running out of memory

Stream a multi-gigabyte CSV in .NET 11 without OutOfMemoryException. File.ReadLines, CsvHelper, Sylvan, and Pipelines compared with code and measurements.

2026-04-24 aspnet-core dotnet dotnet-11

How to stream a file from an ASP.NET Core endpoint without buffering

Serve large files from ASP.NET Core 11 without loading them into memory. Three tiers: PhysicalFileResult for on-disk files, Results.Stream for arbitrary streams, and Response.BodyWriter for generated payloads -- with code for each.

2026-04-23 dotnet-11 ef-core-11 testing

EF Core 11 Preview 3 Adds RemoveDbContext for Clean Test Provider Swaps

EF Core 11 Preview 3 introduces RemoveDbContext, RemoveExtension, and a parameterless AddPooledDbContextFactory overload, removing the boilerplate around swapping providers in tests and centralizing pooled factory configuration.

2026-04-23 csharp dotnet dotnet-11

How to cancel a long-running Task in C# without deadlocking

Cooperative cancellation with CancellationToken, CancelAsync, Task.WaitAsync, and linked tokens in .NET 11. Plus the blocking patterns that turn a clean cancel into a deadlock.

2026-04-22 dotnet dotnet-11 ef-core

How to use IAsyncEnumerable<T> with EF Core 11

EF Core 11 queries implement IAsyncEnumerable<T> directly. Here is how to stream rows with await foreach, when to prefer it over ToListAsync, and the gotchas around connections, tracking, and cancellation.