private List <string> FindPath(SavedRouteItem route, SavedRouteGroup rootNode = null)
{
if (rootNode == null)
{
rootNode = (SavedRouteGroup)Nodes[0];
}
foreach (SavedRouteNode node in rootNode.Nodes)
{
if (node is SavedRouteItem)
{
SavedRouteItem item = (SavedRouteItem)node;
if (item.IPVersion == route.IPVersion)
{
if (item.Destination == route.Destination)
{
if (item.Prefix == route.Prefix)
{
if (item.Gateway == route.Gateway)
{
if (item.InterfaceGuid == route.InterfaceGuid)
{
return(new List <string>(new string[] { rootNode.Name, item.Name }));
}
}
}
}
}
}
else
{
SavedRouteGroup group = (SavedRouteGroup)node;
List <string> relativePath = FindPath(route, group);
if (relativePath != null)
{
return(new List <string>(new string[] { rootNode.Name }).Concat(relativePath).ToList());
}
}
}
return(null);
}
private List<string> FindPath(SavedRouteItem route, SavedRouteGroup rootNode = null)
{
if (rootNode == null)
rootNode = (SavedRouteGroup)Nodes[0];
foreach (SavedRouteNode node in rootNode.Nodes)
{
if (node is SavedRouteItem)
{
SavedRouteItem item = (SavedRouteItem)node;
if (item.IPVersion == route.IPVersion)
if (item.Destination == route.Destination)
if (item.Prefix == route.Prefix)
if (item.Gateway == route.Gateway)
if (item.InterfaceGuid == route.InterfaceGuid)
return new List<string>(new string[] { rootNode.Name, item.Name });
}
else
{
SavedRouteGroup group = (SavedRouteGroup)node;
List<string> relativePath = FindPath(route, group);
if (relativePath != null)
return new List<string>(new string[] { rootNode.Name }).Concat(relativePath).ToList();
}
}
return null;
}
public static void Load()
{
Config currentConfig;
if (File.Exists("Network_Manager.xml"))
{
try
{
XmlSerializer reader = new XmlSerializer(typeof(Config));
using (StreamReader file = new StreamReader("Network_Manager.xml"))
{
currentConfig = (Config)reader.Deserialize(file);
//Config defaultConfig = new Config();
//currentConfig = (Config)CheckIfNull(typeof(Config), currentConfig, defaultConfig); // not needed, XML does a nice job
}
}
catch
{
DialogResult result = MessageBox.Show("Configuration file was corrupted.\n\nDo you want to reset it to default and lose all configurations?", "Config File Corrupted", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2, MessageBoxOptions.ServiceNotification);
if (result == DialogResult.No)
Global.Exit();
currentConfig = new Config();
File.Delete("Network_Manager.xml");
}
}
else
currentConfig = new Config();
// load defaults if null
if (currentConfig.SavedRoutes.Nodes.Count == 0)
{
currentConfig.SavedRoutes.Nodes.Add(new SavedRouteGroup());
currentConfig.SavedRoutes.Nodes[0].Name = "<Root Group>";
}
if (currentConfig.InterfaceProfiles.Count == 0)
{
InterfaceProfile profile = new InterfaceProfile();
profile.Name = "Google DNS";
profile.IPv4DnsAddresses.Add("8.8.8.8");
profile.IPv4DnsAddresses.Add("8.8.4.4");
profile.IPv6DnsAddresses.Add("2001:4860:4860::8888");
profile.IPv6DnsAddresses.Add("2001:4860:4860::8844");
currentConfig.InterfaceProfiles.Add(profile);
profile = new InterfaceProfile();
profile.Name = "Comodo Secure DNS";
profile.IPv4DnsAddresses.Add("8.26.56.26");
profile.IPv4DnsAddresses.Add("8.20.247.20");
currentConfig.InterfaceProfiles.Add(profile);
profile = new InterfaceProfile();
profile.Name = "OpenDNS";
profile.IPv4DnsAddresses.Add("208.67.222.222");
profile.IPv4DnsAddresses.Add("208.67.220.220");
profile.IPv6DnsAddresses.Add("2620:0:ccc::2");
profile.IPv6DnsAddresses.Add("2620:0:ccd::2");
currentConfig.InterfaceProfiles.Add(profile);
}
if (currentConfig.LoadBalancer.IPv4LocalAddresses.Count == 0)
currentConfig.LoadBalancer.IPv4LocalAddresses.Add(new NetworkInterface.IPHostAddress("192.168.200.2", "255.255.255.0"));
if (currentConfig.LoadBalancer.IPv4GatewayAddresses.Count == 0)
currentConfig.LoadBalancer.IPv4GatewayAddresses.Add(new NetworkInterface.IPGatewayAddress("192.168.200.1", 1));
if (currentConfig.LoadBalancer.IPv4DnsAddresses.Count == 0)
currentConfig.LoadBalancer.IPv4DnsAddresses.Add("8.8.8.8");
// legacy upgrade support
if (File.Exists("Network_Manager.ini"))
{
// recover Gadget settings
string gadgetX = Kernel32.IniReadValue("Gadget", "GadgetX", "Network_Manager.ini");
string gadgetY = Kernel32.IniReadValue("Gadget", "GadgetY", "Network_Manager.ini");
string alwaysOnTop = Kernel32.IniReadValue("Gadget", "AlwaysOnTop", "Network_Manager.ini");
string checkForUpdates = Kernel32.IniReadValue("Gadget", "CheckForUpdates", "Network_Manager.ini");
string maxVerticalSlots = Kernel32.IniReadValue("Gadget", "MaxVerticalSlots", "Network_Manager.ini");
string maxHorizontalSlots = Kernel32.IniReadValue("Gadget", "MaxHorizontalSlots", "Network_Manager.ini");
if (Regex.IsMatch(gadgetX, @"^\d+$") &&
Regex.IsMatch(gadgetY, @"^\d+$"))
currentConfig.Gadget.Location = new Point(int.Parse(gadgetX), int.Parse(gadgetY));
if (Regex.IsMatch(alwaysOnTop, @"^(0|1)$"))
currentConfig.Gadget.AlwaysOnTop = alwaysOnTop == "1";
if (Regex.IsMatch(checkForUpdates, @"^(0|1)$"))
currentConfig.Gadget.CheckForUpdates = checkForUpdates == "1";
if (Regex.IsMatch(maxVerticalSlots, @"^\d$"))
currentConfig.Gadget.MaxVerticalSlots = int.Parse(maxVerticalSlots);
if (Regex.IsMatch(maxHorizontalSlots, @"^\d$"))
currentConfig.Gadget.MaxHorizontalSlots = int.Parse(maxHorizontalSlots);
// recover routes
string routeNames = Kernel32.IniReadValue("Routes", "RouteNames", "Network_Manager.ini");
if (routeNames.Contains('#'))
{
SavedRouteGroup group = new SavedRouteGroup();
group.Name = "Legacy recovered routes";
foreach (string routeName in routeNames.Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries))
{
string[] sRoute = Kernel32.IniReadValue("Routes", routeName, "Network_Manager.ini").Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
SavedRouteItem route = new SavedRouteItem();
route.Name = routeName;
try
{
route.Destination = sRoute[0];
route.Prefix = sRoute[1];
route.Gateway = sRoute[2];
route.InterfaceGuid = Guid.Empty;
route.Metric = ushort.Parse(sRoute[4]);
route.IPVersion = 4;
group.Nodes.Add(route);
}
catch { }
}
((SavedRouteGroup)currentConfig.SavedRoutes.Nodes[0]).Nodes.Add(group);
}
// recover interface profiles
// complete profiles
string completeProfileNames = Kernel32.IniReadValue("ConfigInterfaceProfiles", "CompleteProfileNames", "Network_Manager.ini");
foreach (string profileName in completeProfileNames.Split(new [] {'#'}, StringSplitOptions.RemoveEmptyEntries))
{
if (currentConfig.InterfaceProfiles.Any(i => i.Name == profileName))
continue;
string[] sProfile = Kernel32.IniReadValue("ConfigInterfaceProfiles", profileName, "Network_Manager.ini").Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
InterfaceProfile profile = new InterfaceProfile();
profile.Name = profileName;
try
{
profile.IPv4LocalAddresses.Add(new NetworkInterface.IPHostAddress(sProfile[0], sProfile[1]));
profile.IPv4GatewayAddresses.Add(new NetworkInterface.IPGatewayAddress(sProfile[2], ushort.Parse(sProfile[3])));
profile.IPv4DnsAddresses.Add(sProfile[5]);
//profile.DhcpEnabled = (NetworkInterface.Dhcp)(int.Parse(sProfile[4]) + int.Parse(sProfile[6]));
profile.InterfaceMetric = int.Parse(sProfile[7]);
profile.NetbiosEnabled = (NetworkInterface.Netbios)(int.Parse(sProfile[7]) == 1 ? 1 : 2);
currentConfig.InterfaceProfiles.Add(profile);
}
catch { }
}
// IP profiles
string ipProfileNames = Kernel32.IniReadValue("ConfigInterfaceProfiles", "IpProfileNames", "Network_Manager.ini");
foreach (string profileName in ipProfileNames.Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries))
{
if (currentConfig.InterfaceProfiles.Any(i => i.Name == profileName))
continue;
string[] sProfile = Kernel32.IniReadValue("ConfigInterfaceProfiles", profileName, "Network_Manager.ini").Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
InterfaceProfile profile = new InterfaceProfile();
profile.Name = profileName;
try
{
profile.IPv4LocalAddresses.Add(new NetworkInterface.IPHostAddress(sProfile[0], sProfile[1]));
profile.IPv4GatewayAddresses.Add(new NetworkInterface.IPGatewayAddress(sProfile[2], ushort.Parse(sProfile[3])));
currentConfig.InterfaceProfiles.Add(profile);
}
catch { }
}
// DNS profiles
string dnsProfileNames = Kernel32.IniReadValue("ConfigInterfaceProfiles", "DnsProfileNames", "Network_Manager.ini");
foreach (string profileName in dnsProfileNames.Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries))
{
if (currentConfig.InterfaceProfiles.Any(i => i.Name == profileName))
continue;
string[] sProfile = Kernel32.IniReadValue("ConfigInterfaceProfiles", profileName, "Network_Manager.ini").Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
InterfaceProfile profile = new InterfaceProfile();
profile.Name = profileName;
try
{
profile.IPv4DnsAddresses.Add(sProfile[0]);
currentConfig.InterfaceProfiles.Add(profile);
}
catch { }
}
// Settings profiles
string settingsProfileNames = Kernel32.IniReadValue("ConfigInterfaceProfiles", "SettingsProfileNames", "Network_Manager.ini");
foreach (string profileName in settingsProfileNames.Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries))
{
if (currentConfig.InterfaceProfiles.Any(i => i.Name == profileName))
continue;
string[] sProfile = Kernel32.IniReadValue("ConfigInterfaceProfiles", profileName, "Network_Manager.ini").Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
InterfaceProfile profile = new InterfaceProfile();
profile.Name = profileName;
try
{
profile.InterfaceMetric = int.Parse(sProfile[7]);
profile.NetbiosEnabled = (NetworkInterface.Netbios)(int.Parse(sProfile[7]) == 1 ? 2 : 0);
currentConfig.InterfaceProfiles.Add(profile);
}
catch { }
}
try
{
File.Move("Network_Manager.ini", "Network_Manager.old.ini");
}
catch { }
}
Global.Config = currentConfig;
}
public static void Load()
{
Config currentConfig;
if (!File.Exists("Network_Manager.xml") && File.Exists("Network_Manager.xml.tmp"))
{
File.Move("Network_Manager.xml.tmp", "Network_Manager.xml");
}
if (File.Exists("Network_Manager.xml"))
{
try
{
XmlSerializer reader = new XmlSerializer(typeof(Config));
using (StreamReader file = new StreamReader("Network_Manager.xml"))
{
XmlReader xmlReader = XmlReader.Create(file);
currentConfig = (Config)reader.Deserialize(xmlReader);
//Config defaultConfig = new Config();
//currentConfig = (Config)CheckIfNull(typeof(Config), currentConfig, defaultConfig); // not needed, XML does a nice job
}
}
catch
{
DialogResult result = MessageBox.Show("Configuration file was corrupted.\n\nDo you want to reset it to default and lose all configurations?", "Config File Corrupted", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2, MessageBoxOptions.ServiceNotification);
if (result == DialogResult.No)
{
Global.Exit();
}
currentConfig = new Config();
File.Delete("Network_Manager.xml");
}
}
else
{
currentConfig = new Config();
}
// load defaults if null
if (currentConfig.SavedRoutes.Nodes.Count == 0)
{
currentConfig.SavedRoutes.Nodes.Add(new SavedRouteGroup());
currentConfig.SavedRoutes.Nodes[0].Name = "<Root Group>";
}
if (currentConfig.InterfaceProfiles.Count == 0)
{
InterfaceProfile profile = new InterfaceProfile();
profile.Name = "Google DNS";
profile.IPv4DnsAddresses.Add("8.8.8.8");
profile.IPv4DnsAddresses.Add("8.8.4.4");
profile.IPv6DnsAddresses.Add("2001:4860:4860::8888");
profile.IPv6DnsAddresses.Add("2001:4860:4860::8844");
currentConfig.InterfaceProfiles.Add(profile);
profile = new InterfaceProfile();
profile.Name = "Comodo Secure DNS";
profile.IPv4DnsAddresses.Add("8.26.56.26");
profile.IPv4DnsAddresses.Add("8.20.247.20");
currentConfig.InterfaceProfiles.Add(profile);
profile = new InterfaceProfile();
profile.Name = "OpenDNS";
profile.IPv4DnsAddresses.Add("208.67.222.222");
profile.IPv4DnsAddresses.Add("208.67.220.220");
profile.IPv6DnsAddresses.Add("2620:0:ccc::2");
profile.IPv6DnsAddresses.Add("2620:0:ccd::2");
currentConfig.InterfaceProfiles.Add(profile);
}
if (currentConfig.LoadBalancer.IPv4LocalAddresses.Count == 0)
{
currentConfig.LoadBalancer.IPv4LocalAddresses.Add(new NetworkInterface.IPHostAddress("192.168.200.2", "255.255.255.0"));
}
if (currentConfig.LoadBalancer.IPv4GatewayAddresses.Count == 0)
{
currentConfig.LoadBalancer.IPv4GatewayAddresses.Add(new NetworkInterface.IPGatewayAddress("192.168.200.1", 1));
}
if (currentConfig.LoadBalancer.IPv4DnsAddresses.Count == 0)
{
currentConfig.LoadBalancer.IPv4DnsAddresses.Add("8.8.8.8");
}
// legacy upgrade support
if (File.Exists("Network_Manager.ini"))
{
// recover Gadget settings
string gadgetX = Kernel32.IniReadValue("Gadget", "GadgetX", "Network_Manager.ini");
string gadgetY = Kernel32.IniReadValue("Gadget", "GadgetY", "Network_Manager.ini");
string alwaysOnTop = Kernel32.IniReadValue("Gadget", "AlwaysOnTop", "Network_Manager.ini");
string checkForUpdates = Kernel32.IniReadValue("Gadget", "CheckForUpdates", "Network_Manager.ini");
string maxVerticalSlots = Kernel32.IniReadValue("Gadget", "MaxVerticalSlots", "Network_Manager.ini");
string maxHorizontalSlots = Kernel32.IniReadValue("Gadget", "MaxHorizontalSlots", "Network_Manager.ini");
if (Regex.IsMatch(gadgetX, @"^\d+$") &&
Regex.IsMatch(gadgetY, @"^\d+$"))
{
currentConfig.Gadget.Location = new Point(int.Parse(gadgetX), int.Parse(gadgetY));
}
if (Regex.IsMatch(alwaysOnTop, @"^(0|1)$"))
{
currentConfig.Gadget.AlwaysOnTop = alwaysOnTop == "1";
}
if (Regex.IsMatch(checkForUpdates, @"^(0|1)$"))
{
currentConfig.Gadget.CheckForUpdates = checkForUpdates == "1";
}
if (Regex.IsMatch(maxVerticalSlots, @"^\d$"))
{
currentConfig.Gadget.MaxVerticalSlots = int.Parse(maxVerticalSlots);
}
if (Regex.IsMatch(maxHorizontalSlots, @"^\d$"))
{
currentConfig.Gadget.MaxHorizontalSlots = int.Parse(maxHorizontalSlots);
}
// recover routes
string routeNames = Kernel32.IniReadValue("Routes", "RouteNames", "Network_Manager.ini");
if (routeNames.Contains('#'))
{
SavedRouteGroup group = new SavedRouteGroup();
group.Name = "Legacy recovered routes";
foreach (string routeName in routeNames.Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries))
{
string[] sRoute = Kernel32.IniReadValue("Routes", routeName, "Network_Manager.ini").Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
SavedRouteItem route = new SavedRouteItem();
route.Name = routeName;
try
{
route.Destination = sRoute[0];
route.Prefix = sRoute[1];
route.Gateway = sRoute[2];
route.InterfaceGuid = Guid.Empty;
route.Metric = ushort.Parse(sRoute[4]);
route.IPVersion = 4;
group.Nodes.Add(route);
}
catch { }
}
((SavedRouteGroup)currentConfig.SavedRoutes.Nodes[0]).Nodes.Add(group);
}
// recover interface profiles
// complete profiles
string completeProfileNames = Kernel32.IniReadValue("ConfigInterfaceProfiles", "CompleteProfileNames", "Network_Manager.ini");
foreach (string profileName in completeProfileNames.Split(new [] { '#' }, StringSplitOptions.RemoveEmptyEntries))
{
if (currentConfig.InterfaceProfiles.Any(i => i.Name == profileName))
{
continue;
}
string[] sProfile = Kernel32.IniReadValue("ConfigInterfaceProfiles", profileName, "Network_Manager.ini").Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
InterfaceProfile profile = new InterfaceProfile();
profile.Name = profileName;
try
{
profile.IPv4LocalAddresses.Add(new NetworkInterface.IPHostAddress(sProfile[0], sProfile[1]));
profile.IPv4GatewayAddresses.Add(new NetworkInterface.IPGatewayAddress(sProfile[2], ushort.Parse(sProfile[3])));
profile.IPv4DnsAddresses.Add(sProfile[5]);
//profile.DhcpEnabled = (NetworkInterface.Dhcp)(int.Parse(sProfile[4]) + int.Parse(sProfile[6]));
profile.InterfaceMetric = int.Parse(sProfile[7]);
profile.NetbiosEnabled = (NetworkInterface.Netbios)(int.Parse(sProfile[7]) == 1 ? 1 : 2);
currentConfig.InterfaceProfiles.Add(profile);
}
catch { }
}
// IP profiles
string ipProfileNames = Kernel32.IniReadValue("ConfigInterfaceProfiles", "IpProfileNames", "Network_Manager.ini");
foreach (string profileName in ipProfileNames.Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries))
{
if (currentConfig.InterfaceProfiles.Any(i => i.Name == profileName))
{
continue;
}
string[] sProfile = Kernel32.IniReadValue("ConfigInterfaceProfiles", profileName, "Network_Manager.ini").Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
InterfaceProfile profile = new InterfaceProfile();
profile.Name = profileName;
try
{
profile.IPv4LocalAddresses.Add(new NetworkInterface.IPHostAddress(sProfile[0], sProfile[1]));
profile.IPv4GatewayAddresses.Add(new NetworkInterface.IPGatewayAddress(sProfile[2], ushort.Parse(sProfile[3])));
currentConfig.InterfaceProfiles.Add(profile);
}
catch { }
}
// DNS profiles
string dnsProfileNames = Kernel32.IniReadValue("ConfigInterfaceProfiles", "DnsProfileNames", "Network_Manager.ini");
foreach (string profileName in dnsProfileNames.Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries))
{
if (currentConfig.InterfaceProfiles.Any(i => i.Name == profileName))
{
continue;
}
string[] sProfile = Kernel32.IniReadValue("ConfigInterfaceProfiles", profileName, "Network_Manager.ini").Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
InterfaceProfile profile = new InterfaceProfile();
profile.Name = profileName;
try
{
profile.IPv4DnsAddresses.Add(sProfile[0]);
currentConfig.InterfaceProfiles.Add(profile);
}
catch { }
}
// Settings profiles
string settingsProfileNames = Kernel32.IniReadValue("ConfigInterfaceProfiles", "SettingsProfileNames", "Network_Manager.ini");
foreach (string profileName in settingsProfileNames.Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries))
{
if (currentConfig.InterfaceProfiles.Any(i => i.Name == profileName))
{
continue;
}
string[] sProfile = Kernel32.IniReadValue("ConfigInterfaceProfiles", profileName, "Network_Manager.ini").Split(new[] { '#' }, StringSplitOptions.RemoveEmptyEntries);
InterfaceProfile profile = new InterfaceProfile();
profile.Name = profileName;
try
{
profile.InterfaceMetric = int.Parse(sProfile[7]);
profile.NetbiosEnabled = (NetworkInterface.Netbios)(int.Parse(sProfile[7]) == 1 ? 2 : 0);
currentConfig.InterfaceProfiles.Add(profile);
}
catch { }
}
try
{
File.Move("Network_Manager.ini", "Network_Manager.old.ini");
}
catch { }
}
Global.Config = currentConfig;
}
/// <summary>
/// For rename = true, if node already exists and source is a group it renames it without changing its subnodes,
/// and if it's an item it replaces it.<para/>
/// Returns:<para/>
/// 0: success<para/>
/// 1: invlid destination<para/>
/// 2: name already exists
/// </summary>
/// <param name="treeView"></param>
/// <param name="name"></param>
/// <param name="rename">Rename group/edit item</param>
/// <returns></returns>
public int AddNode(TreeView treeView, SavedRouteNode node, bool rename = false)
{
TreeNode selectedNode = treeView.SelectedNode;
if (selectedNode == null)
{
return(1);
}
// get TV selection path
List <string> path = new List <string>();
TreeNode tvNode = selectedNode;
while (tvNode.Parent != null)
{
path.Insert(0, tvNode.Parent.Text);
tvNode = tvNode.Parent;
}
if (selectedNode.ImageIndex == 0)
{
path.Add(selectedNode.Text);
}
// find equivalent node in config
List <SavedRouteNode> destination = this.Nodes;
foreach (string pathNode in path.Take(path.Count - Convert.ToInt32(rename) + selectedNode.ImageIndex))
{
destination = ((SavedRouteGroup)destination.Find((i) => i.Name == pathNode && i is SavedRouteGroup)).Nodes;
}
// find if name already used at destination
if (destination.Find((i) => i.Name == node.Name && i.GetType() == node.GetType()) != null &&
(!rename || node.Name != selectedNode.Text))
{
return(2);
}
if (rename)
{
if (selectedNode.ImageIndex == 0)
{
if (destination.Find((i) => i.Name == selectedNode.Text && i.GetType() == node.GetType()) != null)
{
SavedRouteGroup group = (SavedRouteGroup)destination.Find((i) => i.Name == selectedNode.Text && i.GetType() == node.GetType());
group.Name = node.Name;
group.AutoLoadOnStartup = ((SavedRouteGroup)node).AutoLoadOnStartup;
}
path.Remove(path.Last());
}
else
{
destination.Remove(destination.Find((i) => i.Name == selectedNode.Text && i.GetType() == node.GetType()));
destination.Add(node);
}
}
else
{
destination.Add(node);
}
path.Add(node.Name);
// update TV
Global.Config.Save();
Global.Config.SavedRoutes.Populate(treeView, path);
// raise event
if (NodesChanged != null)
{
NodesChanged(this, new EventArgs());
}
return(0);
}
