HttpListenerRequest.KeepAlive Property

Definition

Namespace:

System.Net

Assemblies:

netstandard.dll, System.Net.HttpListener.dll

Source:

HttpListenerRequest.cs

Gets a Boolean value that indicates whether the client requests a persistent connection.

C#

public bool KeepAlive { get; }

Property Value

Boolean

true if the connection should be kept open; otherwise, false.

Examples

The following code example demonstrates using this property.

C#

public static void ShowRequestProperties2 (HttpListenerRequest request)
{
    Console.WriteLine("KeepAlive: {0}", request.KeepAlive);
    Console.WriteLine("Local end point: {0}", request.LocalEndPoint.ToString());
    Console.WriteLine("Remote end point: {0}", request.RemoteEndPoint.ToString());
    Console.WriteLine("Is local? {0}", request.IsLocal);
    Console.WriteLine("HTTP method: {0}", request.HttpMethod);
    Console.WriteLine("Protocol version: {0}", request.ProtocolVersion);
    Console.WriteLine("Is authenticated: {0}", request.IsAuthenticated);
    Console.WriteLine("Is secure: {0}", request.IsSecureConnection);
}

Remarks

If an HTTP client and server expect to exchange data multiple times in a short time period, a persistent connection speeds up their communications by allowing them to avoid the overhead required to open and close a TCP connection for each message. For clients using HTTP/1.1, the default value for this property is true.

Applies to

See also

• HttpListener
• HttpListenerContext
• HttpListenerResponse