using System;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[]
args)
{
Counter c
= new Counter(new
Random().Next(10));
c.ThresholdReached
+= c_ThresholdReached;
Console.WriteLine("press 'a' key to increase total");
while
(Console.ReadKey(true).KeyChar == 'a')
{
Console.WriteLine("adding one");
c.Add(1);
}
}
static void c_ThresholdReached(object
sender, ThresholdReachedEventArgs e)
{
Console.WriteLine("The threshold of {0} was reached at
{1}.",
e.Threshold,
e.TimeReached);
Environment.Exit(0);
}
}
class Counter
{
private int
threshold;
private int
total;
public Counter(int
passedThreshold)
{
threshold
= passedThreshold;
}
public void Add(int x)
{
total +=
x;
if
(total >= threshold)
{
ThresholdReachedEventArgs args = new
ThresholdReachedEventArgs();
args.Threshold = threshold;
args.TimeReached = DateTime.Now;
OnThresholdReached(args);
}
}
protected virtual void OnThresholdReached(ThresholdReachedEventArgs
e)
{
EventHandler<ThresholdReachedEventArgs> handler =
ThresholdReached;
if
(handler != null)
{
handler(this, e);
}
}
public event
EventHandler<ThresholdReachedEventArgs> ThresholdReached;
}
public class ThresholdReachedEventArgs : EventArgs
{
public int Threshold
{ get; set; }
public
DateTime TimeReached { get; set; }
}
}
