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Version.CompareTo Method (Version)

Compares the current Version object to a specified Version object and returns an indication of their relative values.

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

public final function CompareTo(
	value : Version
) : int

Parameters

value
Type: System.Version

A Version object to compare to the current Version object, or a null reference (Nothing in Visual Basic).

Return Value

Type: System.Int32

Return Value

Description

Less than zero

The current Version object is a version before value.

Zero

The current Version object is the same version as value.

Greater than zero

The current Version object is a version subsequent to value.

-or-

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

Implements

IComparable(T).CompareTo(T)

This method implements the System.IComparable(T) interface, and performs slightly better than the CompareTo method because it does not have to unbox the value parameter.

The components of Version in decreasing order of importance are: major, minor, build, and revision. An unknown component is assumed to be older than any known component. For example:

  • Version 1.1 is older than version 1.1.0.

  • Version 1.1 is older than version 1.1.1.

  • Version 1.1 is older than version 1.1.2.3.

  • Version 1.1.2 is older than version 1.1.2.4.

  • Version 1.2.5 is newer than version 1.2.3.4.

The following code example demonstrates generic and nongeneric versions of the CompareTo method for several value and reference types.

No code example is currently available or this language may not be supported.

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, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
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