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 null.

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 null.

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.

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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