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HttpListenerPrefixCollection.CopyTo Method (Array, Int32)

Copies the contents of an HttpListenerPrefixCollection to the specified array.

Namespace:  System.Net
Assembly:  System (in System.dll)
Public Sub CopyTo ( _
	array As Array, _
	offset As Integer _


Type: System.Array

The one dimensional Array that receives the Uniform Resource Identifier (URI) prefix strings in this collection.

Type: System.Int32

The zero-based index in array at which copying begins.


array has more than one dimension.


This collection contains more elements than can be stored in array starting at offset.


The HttpListener associated with this collection is closed.


array cannot store string values.

The array must be able to contain strings and cannot be multidimensional.

The following code example copies the prefixes in a HttpListenerPrefixCollection.

public static string[] CopyPrefixes (HttpListener listener)
     HttpListenerPrefixCollection prefixes = listener.Prefixes;
     string[] prefixArray = new string[prefixes.Count];
     prefixes.CopyTo(prefixArray, 0);
     return prefixArray;

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, 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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