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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)

abstract CompareTo : 
        value:Version -> int 
override 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
A signed integer that indicates the relative values of the two objects, as shown in the following table.

Return value

Meaning

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.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

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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