TcpClientChannel Class

For remote calls, implements a client channel that uses the TCP protocol to transmit messages.

Namespace: System.Runtime.Remoting.Channels.Tcp
Assembly: System.Runtime.Remoting (in system.runtime.remoting.dll)

public class TcpClientChannel : IChannelSender, IChannel, ISecurableChannel
public class TcpClientChannel implements IChannelSender, IChannel, 
public class TcpClientChannel implements IChannelSender, IChannel, 
Not applicable.

Channels transport messages across remoting boundaries (for example, computers or application domains). The TcpClientChannel class transports messages using the TCP protocol.

Channels are used by the .NET Framework remoting infrastructure to transport remote calls. When a client makes a call to a remote object, the call is serialized into a message that is sent by a client channel and received by a server channel. It is then deserialized and processed. Any returned values are transmitted by the server channel and received by the client channel.

To perform additional processing of messages on the client side, you can specify an implementation of the IClientChannelSinkProvider interface through which all messages processed by the TcpClientChannel are passed.

By default, the TcpClientChannel class uses a binary formatter to serialize all messages.

A TcpClientChannel object has associated configuration properties that can be set at run time either in a configuration file (by invoking the static RemotingConfiguration.Configure method) or programmatically (by passing a IDictionary collection to the TcpClientChannel constructor). For a list of these configuration properties, see the documentation for TcpClientChannel.

The following code example shows the use of the TcpClientChannel class to call a remote type.

using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;
using System.Security.Permissions;

public class Client
    public static void Main()

        // Set up a client channel.
        TcpClientChannel clientChannel = new TcpClientChannel();

        // Show the name and priority of the channel.
        Console.WriteLine("Channel Name: {0}", clientChannel.ChannelName);
        Console.WriteLine("Channel Priority: {0}", clientChannel.ChannelPriority);

        // Obtain a proxy for a remote object.
            typeof(Remotable), "tcp://localhost:9090/Remotable.rem"

        // Call a method on the object.
        Remotable remoteObject = new Remotable();
        Console.WriteLine( remoteObject.GetCount() );


The remote type called in the example above is defined by the following code.

using System;
using System.Runtime.Remoting;

public class Remotable : MarshalByRefObject

    private int callCount = 0;

    public int GetCount()



Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, 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