private void _btnAddHost_Click(object sender, EventArgs e)
{
IPScanHostState host = (IPScanHostState)_lvAliveHosts.SelectedItems[0].Tag;
HostPinger pinger = new HostPinger(host.HostName, host.Address);
((PingForm)Owner).AddNewHost(pinger);
}
private void _btnTrace_Click(object sender, EventArgs e)
{
IPScanHostState host = (IPScanHostState)_lvAliveHosts.SelectedItems[0].Tag;
IPTraceForm form = new IPTraceForm();
form.Target = host.Address.ToString();
form.ShowDialog(this);
}
private ListViewItem FindListViewItem(IPScanHostState host)
{
foreach (ListViewItem item in _lvAliveHosts.Items)
{
if (item.Tag == host)
{
return(item);
}
}
return(null);
}
void host_OnHostNameAvailable(IPScanHostState host)
{
if (InvokeRequired)
{
BeginInvoke(new IPScanHostState.HostNameAvailableDelegate(host_OnHostNameAvailable), host);
return;
}
ListViewItem item = FindListViewItem(host);
if (item != null)
{
item.SubItems[4].Text = host.HostName;
}
}
private void _scanner_OnAliveHostFound(IPScanner scanner, IPScanHostState host)
{
if (InvokeRequired)
{
BeginInvoke(new IPScanner.AliveHostFoundDelegate(_scanner_OnAliveHostFound), scanner, host);
return;
}
ListViewItem item = new ListViewItem();
item.Tag = host;
item.BackColor = Color.GreenYellow;
item.SubItems.Add(host.Address.ToString());
item.SubItems.Add("");
item.SubItems.Add("");
item.SubItems.Add("");
_lvAliveHosts.Items.Add(item);
_lvAliveHosts.Sort();
host.OnHostNameAvailable += new IPScanHostState.HostNameAvailableDelegate(host_OnHostNameAvailable);
host.OnStateChange += new IPScanHostState.StateChangeDelegate(host_OnStateChange);
if (!host.IsTesting())
{
item.ImageIndex = (int)host.QualityCategory;
item.SubItems[2].Text = host.AvgResponseTime.ToString("F02") + " ms";
item.SubItems[3].Text = ((float)(host.LossCount) / host.PingsCount).ToString("P");
item.SubItems[4].Text = host.HostName;
}
AddLogEntry("Host [" + host.Address.ToString() + "] is alive.");
Timer newTimer = new Timer();
newTimer.Tag = item;
newTimer.Interval = 2000;
newTimer.Tick += new EventHandler(newTimer_Tick);
newTimer.Enabled = true;
}
private void host_OnStateChange(IPScanHostState host, IPScanHostState.State oldState)
{
if (InvokeRequired)
{
BeginInvoke(new IPScanHostState.StateChangeDelegate(host_OnStateChange), host, oldState);
return;
}
if (!host.IsTesting())
{
ListViewItem item = FindListViewItem(host);
if (item != null)
{
if (host.IsAlive())
{
item.ImageIndex = (int)host.QualityCategory;
item.SubItems[2].Text = host.AvgResponseTime.ToString("F02") + " ms";
item.SubItems[3].Text = ((float)(host.LossCount) / host.PingsCount).ToString("P");
}
else
{
AddLogEntry("Host [" + host.Address.ToString() + "] died.");
host.OnStateChange -= host_OnStateChange;
host.OnHostNameAvailable -= host_OnHostNameAvailable;
item.BackColor = Color.IndianRed;
Timer removeTimer = new Timer();
removeTimer.Tag = item;
removeTimer.Interval = 2000;
removeTimer.Tick += new EventHandler(removeTimer_Tick);
removeTimer.Enabled = true;
}
}
}
}
