HostName Property
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IPHostEntry.HostName Property

Gets or sets the DNS name of the host.

Namespace: System.Net
Assembly: System (in system.dll)

public:
property String^ HostName {
	String^ get ();
	void set (String^ value);
}
/** @property */
public String get_HostName ()

/** @property */
public void set_HostName (String value)

public function get HostName () : String

public function set HostName (value : String)

Not applicable.

Property Value

A string that contains the primary host name for the server.

The HostName property contains the primary host name for a server. If the DNS entry for the server defines additional aliases, they will be available in the Aliases property.

The following example uses the HostName property to retrieve the primary host name.

void GetIpAddressList( String^ hostString )
{
   try
   {
      // Get 'IPHostEntry' object containing information
      // like host name, IP addresses, aliases for a host.
      IPHostEntry^ hostInfo = Dns::GetHostByName( hostString );
      Console::WriteLine( "Host name : {0}", hostInfo->HostName );
      Console::WriteLine( "IP address List : " );
      for ( int index = 0; index < hostInfo->AddressList->Length; index++ )
         Console::WriteLine( hostInfo->AddressList[ index ] );
   }
   catch ( SocketException^ e ) 
   {
      Console::WriteLine( "SocketException caught!!!" );
      Console::WriteLine( "Source : {0}", e->Source );
      Console::WriteLine( "Message : {0}", e->Message );
   }
   catch ( ArgumentNullException^ e ) 
   {
      Console::WriteLine( "ArgumentNullException caught!!!" );
      Console::WriteLine( "Source : {0}", e->Source );
      Console::WriteLine( "Message : {0}", e->Message );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Exception caught!!!" );
      Console::WriteLine( "Source : {0}", e->Source );
      Console::WriteLine( "Message : {0}", e->Message );
   }
}

    public void GetIpAddressList(String hostString)
    {
        try {
            // Get 'IPHostEntry' object containing information like host name,
            //IP addresses, aliases for a host.
            IPHostEntry hostInfo = Dns.GetHostByName(hostString);

            Console.WriteLine("Host name : " + hostInfo.get_HostName());
            Console.WriteLine("IP address List : ");
            for (int index = 0; index < hostInfo.get_AddressList().
                length; index++) {
                Console.WriteLine(hostInfo.get_AddressList().get_Item(index));
            }
        }
        catch (SocketException e) {
            Console.WriteLine("SocketException caught!!!");
            Console.WriteLine("Source : " + e.get_Source());
            Console.WriteLine("Message : " + e.get_Message());
        }
        catch (ArgumentNullException e) {
            Console.WriteLine("ArgumentNullException caught!!!");
            Console.WriteLine("Source : " + e.get_Source());
            Console.WriteLine("Message : " + e.get_Message());
        }
        catch (System.Exception e) {
            Console.WriteLine("Exception caught!!!");
            Console.WriteLine("Source : " + e.get_Source());
            Console.WriteLine("Message : " + e.get_Message());
        }
    } //GetIpAddressList
} //HostInfoSample

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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