A good solution for await in try/catch/finally?

Question

I need to call an async method in a catch block before throwing again the exception (with its stack trace) like this :

try
{
    //         


        

Answer 1

If you need to use async error handlers, I'd recommend something like this:

Exception exception = null;
try
{
  ...
}
catch (Exception ex)
{
  exception = ex;
}

if (exception != null)
{
  ...
}

The problem with synchronously blocking on async code (regardless of what thread it's running on) is that you're synchronously blocking. In most scenarios, it's better to use await.

Update: Since you need to rethrow, you can use ExceptionDispatchInfo.