private void Start()
{
for (UInt16 i = MinimumPort; i <= MaximumPort; i++)
{
if (!_running)
{
return;
}
CheckPortTask task = new CheckPortTask(PortCheckCompleted, Ip);
task.BeginCheckPort(i);
}
_running = false;
}
private void btnCheck_Click(object sender, EventArgs e)
{
UInt16 port;
IPAddress ip;
bool suc1 = UInt16.TryParse(txtPort.Text, out port);
bool suc2 = IPAddress.TryParse(txtIp.Text, out ip);
if (!suc1 && !suc2)
{
MessageBox.Show("Invalid ip and port", "Invalid cast error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
else if (!suc1)
{
MessageBox.Show("Invalid port", "Invalid cast error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
else if (!suc2)
{
MessageBox.Show("Invalid ip", "Invalid cast error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
CheckPortTask task = new CheckPortTask(new EventHandler <PortEventArgs>((Object o, PortEventArgs ee) =>
{
if (ee.Open)
{
MessageBox.Show(String.Format("The port {0} from IP {1} is open.", ee.Port.ToString(), txtIp.Text), "Port open!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show(String.Format("The port {0} from IP {1} is closed.\nMessage: {2}", ee.Port.ToString(), txtIp.Text, ee.Message), "Port closed!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}), ip);
task.BeginCheckPort(port);
}
