Problem getting the AssemblyVersion into a web page using Razor /MVC3

Question

I'm using the following code in a footer in my _Layout.cshtml file to put the AssemblyInfo version data into the footer of every page in my MVC3 site. However:

@System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString()

Just prints in the footer:

Revision 0.0.0.0

When I modified the view to display all of the assembly info for the "Executing Assembly" using the following

@System.Reflection.Assembly.GetExecutingAssembly().GetName().ToString()

Which prints the following:

Revision App_Web__layout.cshtml.639c3968.hlogy75x, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null

This shows that the "Executing Assembly" isn't my main app, it's the view itself.

How do I get the assembly information for the ACTUAL app, not just the individual views??

Solution 1

cshtml/vbhtml is dynamic compile to assembly.

@typeof(YourApplicationNamespace.MvcApplication).Assembly.GetName().Version

how about this?

Solution 2

This works for me. Without needing to explicitly mention the type.

@ViewContext.Controller.GetType().Assembly.GetName().Version

Solution 3

Using this helper works for me:

    public static HtmlString ApplicationVersion(this HtmlHelper helper)
    {
        var asm = System.Reflection.Assembly.GetExecutingAssembly();
        var version = asm.GetName().Version;
        var product = asm.GetCustomAttributes(typeof(System.Reflection.AssemblyProductAttribute), true).FirstOrDefault() as System.Reflection.AssemblyProductAttribute;

        if (version != null && product != null)
        {
            return new HtmlString(string.Format("<span>{0} v{1}.{2}.{3} ({4})</span>", product.Product, version.Major, version.Minor, version.Build, version.Revision));
        }
        else
        {
            return new HtmlString("");
        }

    }

Solution 4

You need to get the assembly of a type in the project:

typeof(MyType).Assembly.Whatever

Where MyType is any type in the MVC project itself (eg, a controller or model, or the MvcApplication class)

Solution 5

Expanding on takepara's answer, if you want a one liner to get the AssemblyInformationalVersionAttribute from a MVC Razor View:

@System.Diagnostics.FileVersionInfo.GetVersionInfo(typeof(Zeroarc.Candid.Web.MvcApplication).Assembly.Location).ProductVersion

View more solutions

Comments

[Jay Stevens]

Get Calling assembly just goes one level up in the tree... still no good.

[edhubbell]

And @GetType(YourApplicationNamespace.MvcApplication).Assembly.G‌​etName.Version for all the VB.NETers. Both of us.

[Shawn J. Molloy]

I must also share my praise - this tops of my "show the revision number in the app for qa" story along with [assembly: AssemblyVersion("1.0.*")] I get a nice looking build number. Works great.

[Cristian Diaconescu]

For WebAPI sites: @typeof(YourDefaultNamespace.WebApiApplication).Assembly.Get‌​Name().Version. It may even work without the default namespace: @typeof(WebApiApplication).Assembly.GetName().Version

[Mafii]

@typeof(YourApplicationNamespace.MvcApplication).Assembly.Ge‌​tName().Version.ToSt‌​ring(3) returns 3 of the 4 parts of the assembly version if anyone is curious. You can vary between 0 and 4.

[Paul]

I love SO just for these types of answers. It might have been answered way back in 2011 but in 2017 it still proves to be a lifesaver!

[Jim]

This is actually a better answer than the accepted one IMO, since it makes it clear that you're looking for a Type that's part of your application's assembly. Sort of explains the cause of the problem better.

[Leonard AB]

in dotnet core 2.1 this works for me: @{Version version = System.Reflection.Assembly.GetExecutingAssembly().GetName().‌​Version;} then <h1>Ver. @version</h1>

[Tobias]

Works also on quite old .aspx pages

[Vedran Mandić]

Dope, works on .NET6 also, used it like: <p class="w-100">Build date:<br />@(new System.IO.FileInfo(ViewContext.GetType().Assembly.Location).‌​LastWriteTime)</p>