Version.Version(String) Constructor

Initializes a new instance of the Version class using the specified string.

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

public Version (
	string version
public Version (
	String version
public function Version (
	version : String
Not applicable.



A string containing the major, minor, build, and revision numbers, where each number is delimited with a period character ('.').

Exception typeCondition


version has fewer than two components or more than four components.


version is a null reference (Nothing in Visual Basic).


A major, minor, build, or revision component is less than zero.


At least one component of version does not parse to an integer.


At least one component of version represents a number greater than MaxValue.

The version parameter can contain only the components major, minor, build, and revision, in that order, and all separated by periods. There must be at least two components, and at most four. The first two components are assumed to be major and minor. The value of unspecified components is undefined.

The format of the version number is as follows. Optional components are shown in square brackets ('[' and ']'):


All defined components must be integers greater than or equal to 0. For example, if the major number is 6, the minor number is 2, the build number is 1, and the revision number is 3, then version should be "".

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0