Handling Custome Exceptions like operation Cancelled Exceptions

HandlingSpecificException.cs

CancellationTokenSource source = new CancellationTokenSource();
CancellationToken token = source.Token;

Task T1 = new Task(() => {
    for(i=0;i<10000;i++){
      token.ThrowIfCancellationRequested();
    }
}, token);

Task T2 = new Task(() => { throw new IndexOutOfRangeException(); });
Task T3 = new Task(() => { Console.WriteLine("Task 3 did work"); });

T1.Start(); T2.Start(); T3.Start();
source.Cancel();

try{
    Task.WaitAll(T1, T2, T3);
}
catch (AggregateException ex){
    ex.Handle((inner) =>{
        if (inner is OperationCanceledException){
            return true; //Handled Exception
        } else {
            return false; //Unhandled Exception
        }
    });
}

Console.WriteLine("Task1 Completed:{0}  Faulted:{1}  IsCancelled:{2}", T1.IsCompleted, T1.IsFaulted, T1.IsCanceled);
//Console.WriteLine(T1.Exception);
Console.WriteLine("Task2 Completed:{0}  Faulted:{1}  IsCancelled:{2}", T2.IsCompleted, T2.IsFaulted, T2.IsCanceled);
//Console.WriteLine(T2.Exception);
Console.WriteLine("Task3 Completed:{0}  Faulted:{1}  IsCancelled:{2}", T3.IsCompleted, T3.IsFaulted, T3.IsCanceled);
//Console.WriteLine(T3.Exception);