c# 4.0 - Get the server name and ip address in C# 2010 -


get server name , ip address in c# 2010

i want ip address of server. following code comes from:

public static void dogethostentry(string hostname) {          iphostentry host;          host = dns.gethostentry(hostname);          messagebox.show("gethostentry({0}) returns:"+ hostname);          foreach (ipaddress ip in host.addresslist)         {             messagebox.show("    {0}"+ ip.tostring());         } }

this code must know name of server computer.
addressfamily in system.net.ipaddress

system.net.ipaddress i;
string hostname = i.addressfamily.tostring();

error ------------->use of unassigned local variable 'i'

how can name of server computer?

    public string[] servername()     {         string[] strip = displayipaddresses();         int countip = 0;         (int = 0; < strip.length; i++)         {             if (strip[i] != null)                 countip++;         }         string[] name = new string[countip];         (int = 0; < strip.length; i++)         {             if (strip[i] != null)             {                 try                 {                     name[i] = system.net.dns.gethostentry(strip[i]).hostname;                 }                 catch                 {                     continue;                 }             }         }         return name;     }       public string[] displayipaddresses()     {         stringbuilder sb = new stringbuilder();         // list of network interfaces (usually 1 per network card, dialup, , vpn connection)              networkinterface[] networkinterfaces = networkinterface.getallnetworkinterfaces();          int = -1;         string[] s = new string[networkinterfaces.length];          foreach (networkinterface network in networkinterfaces)         {             i++;             if (network.operationalstatus == operationalstatus.up)             {                 if (network.networkinterfacetype == networkinterfacetype.tunnel) continue;                 if (network.networkinterfacetype == networkinterfacetype.tunnel) continue;                 //gatewayipaddressinformationcollection gate = network.getipproperties().gatewayaddresses;                 // read ip configuration each network                     ipinterfaceproperties properties = network.getipproperties();                 //discard not have real gateaway                  if (properties.gatewayaddresses.count > 0)                 {                     bool = false;                     foreach (gatewayipaddressinformation ginfo in properties.gatewayaddresses)                     {                         //not true gateaway (vmware lan)                         if (!ginfo.address.tostring().equals("0.0.0.0"))                         {                             s[i] = ginfo.address.tostring();                             = true;                             break;                         }                     }                     if (!good)                     {                         continue;                     }                 }                 else                 {                     continue;                 }             }         }         return s;     }

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