Best way to check for inner exception?

user_41543 0
Viewed 97273

I know sometimes innerException is null

So the following might fail:

 repEvent.InnerException = ex.InnerException.Message;

Is there a quick ternary way to check if innerException is null or not?

exception-handling exception .net c#
15 Answers

You may simply write like this:

repEvent.InnerException = ex.InnerException?.Message ?? string.Empty;

For get other type of error you may write like this:

string exception = $"\n{nameof(AccountViewModel)}.{nameof(AccountCommand)}. \nMessage: {ex.Message}. \nInnerException:{ex.InnerException}. \nStackTrace: {ex.StackTrace}";
user_44143230

It is possible to use an exception filter to get more precise aiming.

catch (Exception ex) when (ex.InnerException != null) {...}

Please find more details here

user_14800620
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