async and await make asynchronous programming straightforward in C#.
🏁 Declaring an Async Method
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| public async Task<int> GetDataAsync()
{
await Task.Delay(1000); // Simulate async work
return 42;
}
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⏩ Awaiting Tasks
- Use
await to asynchronously wait for a Task to complete.
- Control returns to the caller while the task runs.
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| int result = await GetDataAsync();
Console.WriteLine(result);
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🛑 Error Handling
- Use try/catch for exceptions in async methods.
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| try
{
await DoSomethingAsync();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
|
⚠️ Best Practices
- Never block on async code with
.Result or .Wait().
- Use
ConfigureAwait(false) in library code.
Next: Working with Task and parallel processing!
