CODEWITHSUNDEEP
c#asp.net-coreversioningasp.net-core-mvc
painiyff
painiyff

Reputation: 2709

How to retrieve Product Version?

Is there a way to retrieve the product version of an ASP.NET 5 web application?

This is what I have in my project.json:

"version": "4.0.0-alpha1"

How would I be able to retrieve this from within the application? I used to be able to do this on older ASP.NET versions:

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

However, now it just gives me 0.0.0.0 all the time. Any ideas?

Upvotes: 2

Views: 2456

Answers (3)

Glen Little
Glen Little

Reputation: 7128

For a command line application with .NET 6, I found this to work.

(Anything using the Assembly Location seems to fail when the application is published to a self-contained file.)

First, set the version (in this example: 1.4.3) in the properties: (search for "version") Setting the version in properties

Then use this code to get the number you put in:

using System.Linq;
using System.Reflection;

var version = typeof(Version) // "Version" is the name of any local class
        .GetTypeInfo()
        .Assembly
        .GetCustomAttributes<AssemblyInformationalVersionAttribute>()
        .First()
        .InformationalVersion;

Upvotes: 0

Danny van der Kraan
Danny van der Kraan

Reputation: 5366

Inject IApplicationEnvironment anywhere you need the version. So for instance in the Configure method of the Startup class:

       public void Configure(IApplicationBuilder app, 
        IApplicationEnvironment applicationEnvironment)
    {
        app.UseIISPlatformHandler();

        app.Run(async (context) =>
        {
            await context.Response.WriteAsync(applicationEnvironment.ApplicationVersion);
        });
    }

Source: "Services Available in Startup" http://docs.asp.net/en/latest/fundamentals/startup.html

Upvotes: 2

Will Ray
Will Ray

Reputation: 10879

Add a reference to System.Reflection in your project.json file if you don't already have one. 

"dependencies": {
    "System.Reflection": "4.1.0-beta-23516" // Current version at time of posting
}

Then, you can get the value from the AssemblyInformationalVersionAttribute InformationalVersion property.

private static string GetRuntimeVersion() =>
        typeof(SomeClassInYourAssembly)
            .GetTypeInfo()
            .Assembly
            .GetCustomAttribute<AssemblyInformationalVersionAttribute>()
            .InformationalVersion;

Upvotes: 7

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