C# AssemblyFileVersion usage within a program

Question

I'm working on a program, and I'm trying to display the assembly FILE version

    public static string Version
    {
        get
        {
            Assembly asm = Assembly.GetExecutingAssembly();
            FileVersionInfo fvi = FileVersionInfo.GetVersionInfo(asm.Location);
            return String.Format("{0}.{1}", fvi.FileMajorPart, fvi.FileMinorPart);
        }
    }

At the moment, this only returns the first two version numbers in the "AssemblyVersion", not "AssemblyFileVersion." I'd really like to just reference the AssemblyFileVersion rather than store an internal variable called "Version" that I have to update both this and the assembly version...

[assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyFileVersion("3.5.0")]

That's my AssemblyFileVersion from AssemblyInfo.cs. I'd like to just reference the "3.5.x" part, not the "1.0.*" :/

Thanks, Zack

You're already 99% of the way there, just change the return to fvi.FileVersion — McAden, Jan 19 '10 at 19:03
see https://stackoverflow.com/a/12528418/492 to get the version info from a specific DLL, rather than the parent executing app. — CAD bloke, Oct 23 '17 at 00:21

score 34 · Accepted Answer · answered Mar 31 '09 at 00:44

34

Use ProductMajorPart/ProductMinorPart instead of FileMajorPart/FileMinorPart :

    public static string Version
    {
        get
        {
            Assembly asm = Assembly.GetExecutingAssembly();
            FileVersionInfo fvi = FileVersionInfo.GetVersionInfo(asm.Location);
            return String.Format("{0}.{1}", fvi.ProductMajorPart, fvi.ProductMinorPart);
        }
    }

answered Mar 31 '09 at 00:44

Diadistis

12,086
1
33
55

Err. I just realized it's getting the .dll's version! Not exactly what I am wanting. I want the executable version. (Forgot to mention that it's being called from a .dll) – Zack Mar 31 '09 at 00:50
4

Assembly asm = Assembly.GetEntryAssembly(); – Diadistis Mar 31 '09 at 00:51
5

Note that fvi.FileVersion will give you the formatted string directly (all four parts), if that's what you need... – Benjol Sep 28 '09 at 13:41

score 6 · Answer 2 · edited Feb 22 '10 at 09:49

6

using System.Reflection;
using System.IO;

FileVersionInfo fv = System.Diagnostics.FileVersionInfo.GetVersionInfo(Assembly.GetExecutingAssembly().Location);

Console.WriteLine("AssemblyVersion : {0}", Assembly.GetExecutingAssembly().GetName().Version.ToString());

Console.WriteLine ("AssemblyFileVersion : {0}" , fv.FileVersion.ToString ());

edited Feb 22 '10 at 09:49

edosoft

17,121
25
77
111

answered Dec 07 '09 at 10:46

Vincent Duvernet

61
1
1

score 3 · Answer 3 · edited Aug 23 '11 at 06:11

    var fileVersion = GetCustomAttributeValue<AssemblyFileVersionAttribute>(assembly, "Version");

    private static string GetCustomAttributeValue<T>(Assembly assembly, string propertyName)
        where T : Attribute
    {
        if (assembly == null || string.IsNullOrEmpty(propertyName)) return string.Empty;

        object[] attributes = assembly.GetCustomAttributes(typeof(T), false);            
        if (attributes.Length == 0) return string.Empty;

        var attribute = attributes[0] as T;
        if (attribute == null) return string.Empty;

        var propertyInfo = attribute.GetType().GetProperty(propertyName);
        if (propertyInfo == null) return string.Empty;

        var value = propertyInfo.GetValue(attribute, null);
        return value.ToString();
    }

score 2 · Answer 4 · answered Mar 31 '09 at 00:45

2

To get the version of the currently executing assembly you can use:

using System.Reflection;
Version version = Assembly.GetExecutingAssembly().GetName().Version;

The Assembly class can also load files and access all the assemblies loaded in a process.

answered Mar 31 '09 at 00:45

sipsorcery

30,273
24
104
155

it is AssemblyVersion, not AssemblyFileVersion – Slava May 18 '17 at 15:38

score 1 · Answer 5 · answered Mar 31 '09 at 00:37

1

I guess you will have to use FileVersionInfo class.

System.Diagnostics.FileVersionInfo.GetVersionInfo(FullpathToAssembly)

answered Mar 31 '09 at 00:37

shahkalpesh

33,172
3
63
88

The example I showed uses FileVersionInfo. But it only returns the "AssemblyVersion" attribute. – Zack Mar 31 '09 at 00:39
Oops. That is stupid of me not to see the question completely. Sorry about that. – shahkalpesh Mar 31 '09 at 01:03

score 0 · Answer 6 · answered Oct 25 '18 at 22:14

 protected void Application_Start(object sender, EventArgs e)
 {
     _log.InfoFormat("*************{0} **** Version: {1}************  ", Assembly.GetExecutingAssembly().GetName().Name, Assembly.GetExecutingAssembly().GetName().Version);
  }

Output

INFO Global - *************CustomerFile **** Version: 1.0.17.2510************

C# AssemblyFileVersion usage within a program

6 Answers6

Linked