standards-c-sharp

Return Task instead of void for async methods with no return value

• For asynchronous methods with no return value, return Task instead of void. Returning void makes it difficult/impossible to handle exceptions, test, and write continuations.
• The only exception is for asynchronous event handlers, which must return void.

Don’t

public async void DoSomethingAsync() { ... }

Do

public async Task DoSomethingAsync() { ... }

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