I have a class with some currentstate parameters (instead of session variables)

In program.cs:

builder.Services.AddScoped<CurrentState>();    

Can I inject this CurrentState and read / update parameters at runtime?

When I tried this every component that inject this with @inject CurrentState currentState, every currentState = null and get a new hashcode (currentState.GetHashCode())

I’ve read an article somewhere that you can do this but can’t find it again. Is it totally wrong and I must use sessions or is there a way to use this ang get same instance of CurrentState in all components?

Found an article similiar : https://wellsb.com/csharp/aspnet/blazor-singleton-pass-data-between-pages#google_vignette

I use serverside so can’t use .Singleton. But it seams like I get a completely new instance on every injection?