Basic Async/Await in C#
From the C# Programming Language cheat sheet · Async/Await and Tasks · verified Jul 2026
Basic Async/Await
Asynchronous methods and Task handling
csharp
// Async method
public async Task<string> GetDataAsync()
{
await Task.Delay(1000);
return "Data";
}
// Using async method
string result = await GetDataAsync();
// Multiple async operations
Task<string> task1 = GetDataAsync();
Task<string> task2 = GetDataAsync();
string[] results = await Task.WhenAll(task1, task2);💡 async/await makes asynchronous code look synchronous
⚡ Use Task.WhenAll for concurrent operations
📌 Avoid async void except for event handlers
🟢 ConfigureAwait(false) can improve performance in libraries