A comprehensive guide to C# async/await covering the difference between the async and await keywords, how the compiler generates a state machine under the hood, CPU-bound vs I/O-bound task handling, SynchronizationContext behavior in WPF/Winforms vs console vs ASP.NET Core, ConfigureAwait(false), async streams with IAsyncEnumerable<T>, common pitfalls like deadlocks from .Result/.Wait(), async void dangers, and best practices including CancellationToken usage and ValueTask for performance-sensitive paths.
Table of contents
The Problem with Usual C# Sequential ProgrammingUnderstand C# Asynchronous Programming with async and awaitHow C# async and await Impact the WorkflowDecompiling the Magic Behind the C# async await KeywordsThe Synchronization Context in C# async awaitCommon C# async/await Mistakes (and How to Avoid Them)Guidelines for Using the C# Keywords async and awaitFrequently Asked Questions about C# async/awaitConclusion27 Impressions