Handling the TPL AggregateException exception

In C#, the Task Parallel Library (TPL) provides a convenient way to work with parallelism and asynchronous operations. When you are working with asynchronous tasks, it’s common to use Task.WhenAll or Task.WhenAny to wait for the completion of multiple tasks. However, if any of those tasks throw an exception, the TPL will wrap those exceptions in the AggregateException exception. Let us look at some best practices for handling AggregateException in the context of the TPL.

Use await with try-catch inside async methods

When working with asynchronous code, it’s common to use the await keyword to wait for the completion of tasks. Inside asynchronous methods, you can use a try-catch block to catch exceptions:

try{
    await Task.WhenAll(task1, task2, task3);
}
catch (AggregateException ex)
{
    // Handle or log the exceptions
    foreach (var innerException in...