How to Set Socket Connect Timeout in .NET?

Managing Socket Connection Timeouts in .NET Applications

Network connectivity issues can cause significant delays when establishing socket connections. To prevent indefinite waits, .NET provides mechanisms for setting connection timeouts. This ensures your application responds efficiently, even in the face of network problems.

The Socket class in .NET offers methods to manage connection timeouts. While a default setting allows for indefinite waiting, implementing a timeout is crucial for robust application behavior.

The following code snippet demonstrates how to set a 5-second connection timeout using BeginConnect and EndConnect:

<code class="language-csharp">IAsyncResult result = socket.BeginConnect(sIP, iPort, null, null);

bool success = result.AsyncWaitHandle.WaitOne(5000, true);

if (socket.Connected)
{
    socket.EndConnect(result);
}
else
{
    socket.Close();
    throw new ApplicationException("Connection to server failed.");
}</code>

This code attempts to establish a connection within the specified 5-second window. If the connection isn't successful within that time, a SocketException is thrown, enabling appropriate error handling within your application.

It's important to remember that this example uses the .NET Framework v2. The specific syntax might differ slightly in other .NET versions. Refer to the official Microsoft documentation for detailed information relevant to your .NET environment.

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