Provide common data to all ASP.NET MVC 4 controller method

Question

I am rewriting an ASP.NET webforms app in MVC4 and was wondering how to solve the following problem. It is a multi-tenant app, so part of the URL has the tenant NAME in it:

http://mysite/tenant/controller/action

But tenant is an abbreviation representing the tenant, but I'd like to always convert that to the corresponding integer id and use that throughout the code. What is the best way to write that convert code once and have some variable/property available to all controller methods.

public class DivisionController : Controller
{
    //
    // GET: /Division/

    public ActionResult Index()
    {
        // I want this.TenantId to be available in all controller methods
        FetchDivisions(this.TenantId);
        return View();
    }

Is a base controller the best way to handle this or filters or attributes?

Spencer Ruport · Accepted Answer · 2013-07-03 17:38:02Z

2

Yes a base controller will handle this just fine. If you need to perform a database lookup to convert the abbreviation to the integer value you can use the OnActionExecuting event like so:

protected override void OnActionExecuting(ActionExecutingContext filterContext)
{
    base.OnActionExecuting(filterContext);

    // Lookup code here.
}

answered Jul 3, 2013 at 17:38

Spencer Ruport

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3 Comments

slolife Over a year ago

This looks like it works. Is there a "best practice" on providing the data to the child controller?

Spencer Ruport Over a year ago

I'm not discounting the possibility of a "better practice" but I'm unaware of any. I use this approach for a number of projects.

slolife Over a year ago

What I meant was: Is there something better than say, ViewBag.TenantId = LookupTenantID();?

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