OnEventWritten-Generic.cs

// from https://blogs.msdn.microsoft.com/dotnet/2018/12/04/announcing-net-core-2-2/
// Called whenever an event is written.
protected override void OnEventWritten(EventWrittenEventArgs eventData)
{
    // Write the contents of the event to the console.
    Console.WriteLine($"ThreadID = {eventData.OSThreadId} ID = {eventData.EventId} Name = {eventData.EventName}");
    for (int i = 0; i < eventData.Payload.Count; i++)
    {
        string payloadString = eventData.Payload[i] != null ? eventData.Payload[i].ToString() : string.Empty;
        Console.WriteLine($"    Name = \"{eventData.PayloadNames[i]}\" Value = \"{payloadString}\"");
    }
    Console.WriteLine("\n");
}