This documentation is archived and is not being maintained.

IPAddress.TryParse Method

Determines whether a string is a valid IP address.

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

Public Shared Function TryParse ( _
	ipString As String, _
	<OutAttribute> ByRef address As IPAddress _
) As Boolean
Dim ipString As String 
Dim address As IPAddress 
Dim returnValue As Boolean 

returnValue = IPAddress.TryParse(ipString, _


Type: System.String

The string to validate.

Type: System.Net.IPAddress%

The IPAddress version of the string.

Return Value

Type: System.Boolean
true if ipString is a valid IP address; otherwise, false.


ipString can't contain Unicode characters.


ipString is Nothing.

The TryParse(String, IPAddress) method accepts octal, decimal, and hexadecimal number formats in the ipString parameter for an IPv4 address, even when mixed. The TryParse(String, IPAddress) method can't handle Unicode characters in the ipString parameter. An application should use caution to filter out Unicode characters.

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