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HttpListener.IsListening Property

Gets a value that indicates whether HttpListener has been started.

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

'Declaration
Public ReadOnly Property IsListening As Boolean
'Usage
Dim instance As HttpListener 
Dim value As Boolean 

value = instance.IsListening

Property Value

Type: System.Boolean
true if the HttpListener was started; otherwise, false.

To start an HttpListener, call the Start method.

The following code example demonstrates using this property to determine the listening state of an instance.

public static void DisplayPrefixesAndState(HttpListener listener)
{
    // List the prefixes to which the server listens.
    HttpListenerPrefixCollection prefixes = listener.Prefixes;
    if (prefixes.Count == 0)
    {
        Console.WriteLine("There are no prefixes.");
    }
    foreach(string prefix in prefixes)
    {
        Console.WriteLine(prefix);
    }
    // Show the listening state. 
    if (listener.IsListening)
    {
        Console.WriteLine("The server is listening.");
    }
}

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

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