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FileVersionInfo.FileVersion Property

Gets the file version number.

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

public string FileVersion { get; }

Property Value

Type: System.String
The version number of the file or null if the file did not contain version information.

Typically, a version number is displayed as "major number.minor number.build number.private part number". A file version number is a 64-bit number that holds the version number for a file as follows:

The following example calls GetVersionInfo to get the FileVersionInfo for the Notepad. Then it prints the file description and version number in a text box. This code assumes textBox1 has been instantiated.

using System;
using System.IO;
using System.Diagnostics;

class Class1
{
    public static void Main(string[] args)
    {
        // Get the file version for the notepad. 
        // Use either of the two following commands.
        FileVersionInfo.GetVersionInfo(Path.Combine(Environment.SystemDirectory, "Notepad.exe"));
        FileVersionInfo myFileVersionInfo = FileVersionInfo.GetVersionInfo(Environment.SystemDirectory + "\\Notepad.exe");


        // Print the file name and version number.
        Console.WriteLine("File: " + myFileVersionInfo.FileDescription + '\n' +
           "Version number: " + myFileVersionInfo.FileVersion);
    }

}

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

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, 1.1, 1.0

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