Question

Consider the following snippet of code:

foreach (var setting in RequiredSettings)
                {
                    try
                    {
                        if (!BankSettings.Contains(setting))
                        {
                            throw new Exception("Setting " + setting + " is required.");
                        }
                    }
                    catch (Exception e)
                    {
                        catExceptions.Add(e);
                    }
                }
            }
            if (catExceptions.Any())
            {
                throw new AggregateException(catExceptions);
            }
        }
        catch (Exception e)
        {
            BankSettingExceptions.Add(e);
        }

        if (BankSettingExceptions.Any())
        {
            throw new AggregateException(BankSettingExceptions);
        }

catExceptions is a list of exceptions that I add to. When the loop is done I then take that list and add them to the AggregateException then throw it. When I run the debugger each of the string messages ‘Setting X is required’ appears in the catExceptions collection. However, when it comes down to the AggregateException the only message is now ‘One or more errors have occurred’.

Is there a way that I can aggregate while still keeping the individual messages?

Thanks!

Answer 1

Is there a way that I can aggregate while still keeping the individual messages?

Yes. The InnerExceptions property will include all of the exceptions, with their messages.

You could display these as needed. For example:

try
{
    SomethingBad();
}
catch(AggregateException ae)
{
    foreach(var e in ae.InnerExceptions)
       Console.WriteLine(e.Message);
}