protected virtual void OnWorkCompleted(int hours)
{
WorkPerformedEventArgs wpea = new WorkPerformedEventArgs {
Hours = hours
};
WorkCompleted?.Invoke(this, wpea);
}
private static void Workcompleted(object?sender, WorkPerformedEventArgs e)
{
Console.WriteLine($"workcompleted and the number of hours is {e.Hours}");
}