This documentation is archived and is not being maintained.

NetworkStream.WriteTimeout Property

Gets or sets the amount of time that a write operation blocks waiting for data.

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

public override int WriteTimeout { get; set; }

Property Value

Type: System.Int32
A Int32 that specifies the amount of time, in milliseconds, that will elapse before a write operation fails. The default value, Infinite, specifies that the write operation does not time out.


The value specified is less than or equal to zero and is not Infinite.

If the write operation does not complete within the time specified by this property, the write operation throws a IOException.


This property affects only synchronous write operations performed by calling the Write method. This property does not affect asynchronous writes performed by calling the BeginWrite method.

Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows CE Platform Note: In .NET Compact Framework applications, the WriteTimeout property is supported, but reserved for future use. Using this property will raise an InvalidOperationException, until it is available in a future release of the .NET Compact Framework.

The following code example sets the write time-out for a network stream to 10 milliseconds.

using System;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace Examples.System.Net
    public class TCPListenerExample
        public static void Main()
            // Create the server side connection and  
            // start listening for clients.
            TcpListener tcpListener = new TcpListener(IPAddress.Any,11000);
            Console.WriteLine("Waiting for a connection....");

            // Accept the pending client connection.
            TcpClient tcpClient = tcpListener.AcceptTcpClient();
            Console.WriteLine("Connection accepted.");
            // Get the stream to write the message  
            // that will be sent to the client.
            NetworkStream networkStream = tcpClient.GetStream();
            string responseString = "Hello.";
            // Set the write timeout to 10 millseconds.
            networkStream.WriteTimeout = 10;
            // Convert the message to a byte array and sent it to the client.
            Byte[] sendBytes = Encoding.UTF8.GetBytes(responseString);
            networkStream.Write(sendBytes, 0, sendBytes.Length);
            Console.WriteLine("Message Sent.");
            // Close the connection to the client.
            // Stop listening for incoming connections 
            // and close the server.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0