Listing 1

using System;
using System.Diagnostics;

namespace MyCounter
{

class SimpleCounter
{

/// <summary>
/// Provides an example of creating a simple performance counter from .NET
/// </summary>
[STAThread]
static void Main(string[] args)
{ 
PerformanceCounter pcTotalLoops;
int i;

//check to see if the counter exists...
if (!PerformanceCounterCategory.Exists(".NET Journal Counter"))
{
//create the counter category
PerformanceCounterCategory.Create(".NET Journal Counter",
"A sample counter for .NET Developers Journal Readers.",
"Total Loops","Tracks how many times we looped.");
}

//obtain an instance of the counter.
pcTotalLoops = new PerformanceCounter(".NET Journal Counter","Total Loops","CounterExample",false);

for (i=0;i<10;i++)
{ 
//increment the counter value.
pcTotalLoops.Increment();
Console.WriteLine("Loop Value = " + i);
}

Console.WriteLine("Done looping...");

//check counter value.
Console.WriteLine("Your Counter Value = " + pcTotalLoops.RawValue);

//removes the counter...
if (PerformanceCounterCategory.Exists(".NET Journal Counter"))
{
Console.WriteLine("Press Enter to delete your custom counter...");
Console.Read();
PerformanceCounterCategory.Delete(".NET Journal Counter");
}

}
}
}