// Enable the timer, and add the specified adapter to the monitoredAdapters list
public void StartMonitoring(NetworkAdapter adapter)
{
if (!this.monitoredAdapters.Contains(adapter))
{
this.monitoredAdapters.Add(adapter);
adapter.init();
}
timer.Enabled = true;
}
// Remove the specified adapter from the monitoredAdapters list, and disable the timer if the monitoredAdapters list is empty.
public void StopMonitoring(NetworkAdapter adapter)
{
if (this.monitoredAdapters.Contains(adapter))
this.monitoredAdapters.Remove(adapter);
if(this.monitoredAdapters.Count == 0)
timer.Enabled = false;
}
/// <summary>
/// Enumerates network adapters installed on the computer.
/// </summary>
private void EnumerateNetworkAdapters()
{
PerformanceCounterCategory category = new PerformanceCounterCategory("Network Interface");
foreach (string name in category.GetInstanceNames())
{
// This one exists on every computer.
if (name == "MS TCP Loopback interface")
continue;
// Create an instance of NetworkAdapter class, and create performance counters for it.
NetworkAdapter adapter = new NetworkAdapter(name);
adapter.dlCounter = new PerformanceCounter("Network Interface", "Bytes Received/sec", name);
adapter.ulCounter = new PerformanceCounter("Network Interface", "Bytes Sent/sec", name);
this.adapters.Add(adapter); // Add it to ArrayList adapter
}
}