MVC - Creating code that runs with every controller action.

There is some data I would like to retrieve from the model and display on the master page. Right now, I am using the hack of having the master page access the model directly but that doesn't seem to fit with the seperation of layers design methodology of MVC.

So besides making a procedure that gets called with every controller action, how would I go about making a universal bit of code that runs with the controllers to retrieve the data from the model.

Thanks in advance. :)

Re: MVC - Creating code that runs with every controller action.

create a base class for your controllers which extends System.Web.Mvc.Controller

override the RednerView(ViewContext) method and add your data to viewContext.ViewData.

If you're using strongly typed viewdata then you'll probably what to write a base class for all your view data types which contains the data for your master page.

However, there's a bug with the way the ViewMasterPage<T> works regarding the type of the generic parameter.

Check out the following post for a nice solution http://forums.asp.net/t/1195178.aspx