How can I spread custom object through my MVC application?

Question

Let say I have an object that is similar for each user that try to access to my website. A sort of Session Scope object, which should be visible on every View/Model/Controller inside my whole "application".

I'd like to create it when I call a page and populate it through data coming from my own database.

Than, on View (as example) calling myObject.Title. On WebForms I'm doing this extending a class of the UserControl, such as:

public class iUserControl : System.Web.UI.UserControl
{
    protected MyCurrentPage myCurrentPage;

    public iUserControl()
    {

    }

    protected override void OnLoad(EventArgs e)
    {
        myCurrentPage = new MyCurrentPageWrapper();
    }
}

than, for each UserControl, somethings like this:

public partial class context_pippo_MyOwnUserControl : iUserControl

on MVC I can't see any extension for each controls, so how can I could achieve this kind of process? I'd like to get rid about storing elements on Session.

Answer 1

If I understand question correctly, I think I've done something similar in one project. I had something like this:

public interface IControllerBaseService 
{
   IUserService UserService {get;set;}
   ShoppingMode ShoppingMode {get;set;}
   ...
}

public abstract class ControllerBase : Controller, IControllerBaseService 
{
   public IUserService UserService {get;set;} // this is injected by IoC
   public ShoppingMode ShoppingMode 
   {
      get 
      {
           return UserService.CurrentShoppingMode; // this uses injected instance to get value
      }
   ...
}

As long, as I user IoC container to create controller instances, UserService property is injected by container.

You can access now your interface from view like this:

(IControllerBaseService)ViewContext.Controller

To have a shortcuts for most common used properties in IControllerBaseService , I had several extension methods, something like this:

 public static ShoppingMode CurrentShoppingMode(this HtmlHelper helper)
 {
     return ((IContollerBaseService)helper.ViewContext.Controller).ShoppingMode;
 }

So in view it looked like @Html.CurrentShoppingMode()