AggregateException C# example

user_853004 0
Viewed 79081

I have seen an example of AggregateException on the web and I'm trying to figure out how it works. I have written a simple example, but my code for some reason doesn't work.

Could someone explain to me what the problem is?

public static void Main()
{
    try
    {
        Parallel.For(0, 500000, i =>
        {
            if (i == 10523)
                throw new TimeoutException("i = 10523");
            Console.WriteLine(i + "\n");
        });
    }
    catch (AggregateException exception)
    {
        foreach (Exception ex in exception.InnerExceptions)
        {
            Console.WriteLine(ex.ToString());
        }
    }
}
aggregate exception c#
5 Answers

My way to resolve it:

var tasks = new Task[] { DoSomethingAsync(), DoSomethingElseAsync() };

try
{
    await Task.WhenAll(tasks).ConfigureAwait(false);
}
catch (AggregateException ex)
{
    var flatAgrExs = ex.Flatten().InnerExceptions;

    foreach(var agrEx in flatAgrExs)
    {
        //handle out errors
        logger.LogError(agrEx, "Critical Error occurred");
    }
}
user_101783530
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