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Version.CompareTo Method (Object)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

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

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

Syntax

'Declaration
Public Function CompareTo ( _
    version As Object _
) As Integer

public int CompareTo(
    Object version
)

Parameters

  • version
    Type: System.Object
    An object to compare, or nulla 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 version.

Zero

The current Version object is the same version as version.

Greater than zero

The current Version object is a version subsequent to version.

-or-

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

Implements

IComparable.CompareTo(Object)

Exceptions

Exception Condition
ArgumentException

version is not of type Version.

Remarks

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

Platform Notes

Silverlight for Windows Phone Silverlight for Windows Phone

 If you pass a string to CompareTo, the method throws InvalidCastException instead of ArgumentException.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.