Throw new Exception in asyc method

Question

How properly throw exception in async method?

public async void Method()
{
  if(value)
    throw new Exception("Error!");
}

Answer 1

Like that, but return a Task. When you await the Task, it will throw the exception in the caller.

public async Task DoSomethingAsync()
{
    throw new Exception("Error!");
}

await DoSomethingAsync(); // throws

You almost never want to use async void as you will not be able to wait for it to complete, get a return value or have any exceptions thrown.