Retrieve AssemblyCompanyName from Class Library

Question

I would like to get the AssemblyCompany attribute from a WinForm project inside of my C# class library. In WinForms, I can get to this information by using:

Application.CompanyName;

However, I can't seem to find a way to get at that same information using a class library. Any help you could provide would be great!

The AboutBox accesses and displays most of the Assembly Information (although not the Build Date). I just launch the AboutBox form, Minimised, to which I added some code to pop the required fields into a Common Class, and Close the Form. — italfingers, Jan 05 '17 at 14:11

Rex M · Accepted Answer · 2009-10-26T19:37:58.723

31

To get the assembly in which your current code (the class library code) actually resides, and read its company attribute:

Assembly currentAssem = typeof(CurrentClass).Assembly;
object[] attribs = currentAssem.GetCustomAttributes(typeof(AssemblyCompanyAttribute), true);
if(attribs.Length > 0)
{
    string company = ((AssemblyCompanyAttribute)attribs[0]).Company
}

edited Oct 26 '09 at 19:37

answered Oct 26 '09 at 19:24

Rex M

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I don't know if this is because I'm in .NET 2.0, but I had to add "true" to the end of call for GetCustomAttributes. Other than that, worked like a champ! Thanks for your help! – Blake Blackwell Oct 26 '09 at 19:37
2

I found it very useful! If you are using a new .NET version you can use typeof(CurrentClass).Assembly.GetCustomAttribute().Company – DarioDF Apr 14 '15 at 19:27

score 8 · Answer 2 · edited Oct 29 '20 at 06:11

8

You could use the FileVersionInfo class to get CompanyName and much more.

Dim info = FileVersionInfo.GetVersionInfo(GetType(AboutPage).Assembly.Location)
Dim companyName = info.CompanyName
Dim copyright = info.LegalCopyright
Dim fileVersion = info.FileVersion

edited Oct 29 '20 at 06:11

Pang

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answered Jan 07 '15 at 15:21

Mike Schall

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Why would you use fileinfo to get information about the same assembly that's already in scope? – devlord Apr 16 '15 at 17:24
@lorddev The only way I see to get a FileVersionInfo object is by calling the static/shared GetVersionInfo function that takes a string path. Other options? – Mike Schall Apr 16 '15 at 21:01

score 4 · Answer 3 · edited Oct 29 '20 at 06:12

4

Assembly assembly = typeof(CurrentClass).GetAssembly();
AssemblyCompanyAttribute companyAttribute = AssemblyCompanyAttribute.GetCustomAttribute(assembly, typeof(AssemblyCompanyAttribute)) as AssemblyCompanyAttribute;
if (companyAttribute != null)
{
    string companyName = companyAttribute.Company;
    // Do something
}

edited Oct 29 '20 at 06:12

Pang

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answered Oct 26 '09 at 19:30

Philip Wallace

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score 2 · Answer 4 · answered Feb 17 '21 at 10:21

2

The dotnet 5 version:

typeof(CurrentClass).GetCustomAttribute<AssemblyCompanyAttribute>().Company

answered Feb 17 '21 at 10:21

eglasius

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score 0 · Answer 5 · answered Dec 04 '18 at 13:09

You can also get it using LINQ :

public static string GetAssemblyCompany<T>(){
    string company = (from Attribute a in (typeof(T).Assembly.GetCustomAttributes())
        where a is AssemblyCompanyAttribute
        select ((AssemblyCompanyAttribute)a).Company).FirstOrDefault();

    return company;
}

score 0 · Answer 6 · answered Oct 03 '19 at 04:17

0

This is a great way to get what you are looking for in a single line:

string company = ((AssemblyCompanyAttribute)Attribute.GetCustomAttribute(Assembly.GetExecutingAssembly(), typeof(AssemblyCompanyAttribute), false)).Company;

answered Oct 03 '19 at 04:17

Randall Deetz

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Retrieve AssemblyCompanyName from Class Library

6 Answers6

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