o_19mgorv9t13a3ko71fev19l81mqa.pdf

you run the application and navigate to /Customer URL, you will see the result shown in Figure 18-13.
Figure 18-13. Multiple filters on the same action method
The MVC Framework executes the B filter before the A filter, but it could have been the other way around. The MVC
Framework does not guarantee any particular order or execution. Most of the time, the order does not matter. When it does, you
can use the Order property, as shown in Listing 18-49.
Listing 18-49. Using the Order Property in a Filter
using System.Web.Mvc;
using Filters.Infrastructure;
namespace Filters.Controllers {
public class CustomerController : Controller {
}
}
[SimpleMessage(Message = "A", Order = 1)]
[SimpleMessage(Message = "B", Order = 2)]
public string Index() {
return "This is the Customer controller";
}
The Order parameter takes an int value, and the MVC Framework executes the filters in ascending order. In the listing, I
have given the A filter the lowest value, so the framework executes it first, as shown in Figure 18-14.
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