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HttpListenerPrefixCollection.GetEnumerator Method

Returns an object that can be used to iterate through the collection.

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

public IEnumerator<string> GetEnumerator()

Return Value

Type: System.Collections.Generic.IEnumerator<String>
An object that implements the IEnumerator interface and provides access to the strings in this collection.

Implements

IEnumerable<T>.GetEnumerator()

The object that is returned by this method is initially positioned before the first element in this collection. You must call the MoveNext method before you can access the first element. To access the element at the current position, call the Current property.

Do not modify the collection while using the enumerator. If the collection is modified while an enumerator is in use, an attempt to set the position by calling MoveNext or Reset causes an InvalidOperationException.

For a detailed description of enumerators, see the documentation for the IEnumerator class and the GetEnumerator method.

The following code example demonstrates enumerating through a collection. Note that the Visual Basic and C# examples use language specific statements to enumerate through the collection instead of retrieving the enumerator.

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.");
    }
}

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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