private void btnPing_Click(object sender, EventArgs e)
{
int index = 0;
List<long> results = new List<long>();
//Hide all data points
pingResults.Series["ping"].Points.Clear();
pingResults.Visible = false;
lbPingFailure.Text = "";
lbReturnTime.Visible = false;
lbAverageReturnTime.Visible = false;
lbMinReturnTime.Visible = false;
lbMinTime.Visible = false;
lbMaxReturnTime.Visible = false;
lbMaxTime.Visible = false;
lbConnectionStatus.Visible = false;
lbConnectionStatusLabel.Visible = false;
lbAuthenticationStatus.Visible = false;
lbAuthenticationStatusLabel.Visible = false;
int timeout = 1000;
do
{
try
{
//Ping server selected in drop-down box
Ping pinger = new Ping();
System.Threading.Thread.Sleep(50);
PingReply reply = pinger.Send(piServerPicker2.Text.ToString(), timeout);
//if successful, and round trip time to array and chart
if (reply.Status == IPStatus.Success)
{
long speed = reply.RoundtripTime;
pingResults.Visible = true;
pingResults.Series["ping"].Points.AddY(speed);
results.Add(speed);
}
else
{
//If timeout occurs, display message and exit loop
pingResults.Visible = false;
lbPingFailure.Text = "Ping Timeout!";
break;
}
pinger.Dispose();
index++;
}
catch (PingException)//Catch any exceptions and continue with loop
{
continue;
}
} while (index < 20);
//Make information items visible
lbAuthenticationStatus.Visible = true;
lbAuthenticationStatusLabel.Visible = true;
lbConnectionStatus.Visible = true;
lbConnectionStatusLabel.Visible = true;
//Set information item values depending on ping results
if (lbPingFailure.Text.Equals("Ping Timeout!"))
{
lbAuthenticationStatus.Text = " - ";
lbConnectionStatus.Text = " - ";
}
else
{
long pingAverage = (long)results.Average();
lbAverageReturnTime.Text = pingAverage.ToString() + " ms";
lbReturnTime.Visible = true;
lbAverageReturnTime.Visible = true;
long pingMax = (long)results.Max();
lbMaxReturnTime.Text = pingMax.ToString() + " ms";
lbMaxReturnTime.Visible = true;
lbMaxTime.Visible = true;
long pingMin = (long)results.Min();
lbMinReturnTime.Text = pingMin.ToString() + " ms";
lbMinReturnTime.Visible = true;
lbMinTime.Visible = true;
PIServers servers = new PIServers();
PIServer server = servers[piServerPicker2.PIServer.ToString()];
//Attempt to connect to server
try
{
//If sucessful and both 'connection' and 'authentication' information items display this success
server.Connect();
lbAuthenticationStatus.Text = "Authentication successful";
lbConnectionStatus.Text = "Connection successful";
} catch (OSIsoft.AF.PI.PIAuthenticationException)
{
//If authentication exception occurs, display this
lbAuthenticationStatus.Text = "Authentication unsuccessful";
lbConnectionStatus.Text = " - ";
} catch (Exception ex)
{
//If any other exception then unsuccessful connection
lbAuthenticationStatus.Text = " - ";
lbConnectionStatus.Text = "Connection unsuccessful";
}
}
}