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Dns.EndGetHostAddresses Method

Ends an asynchronous request for DNS information.

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

public static IPAddress[] EndGetHostAddresses(
	IAsyncResult asyncResult
)

Parameters

asyncResult
Type: System.IAsyncResult
An IAsyncResult instance returned by a call to the BeginGetHostAddresses method.

Return Value

Type: System.Net.IPAddress[]
An array of type IPAddress that holds the IP addresses for the host specified by the hostNameOrAddress parameter of BeginGetHostAddresses.

The BeginGetHostAddresses method queries a DNS server for the IP addresses associated with a host name. If hostNameOrAddress is an IP address, this address is returned without querying the DNS server.

When an empty string is passed as the host name, this method returns the IPv4 addresses of the local host for all operating systems except Windows Server 2003; for Windows Server 2003, both IPv4 and IPv6 addresses for the local host are returned.

NoteNote

This member emits trace information when you enable network tracing in your application. For more information, see Network Tracing.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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