Using value of String property inside a [Route()] data annotation in Controller

Question

User1236783433 posted

I'm working on a ASP.NET MVC project, in a Action inside a Controller I try to use STG_Route.ADDproperty value inside [Route()] data annotation like this :[Route(STG_Route.ADD)] but Visual Studio show me this error :

An object reference is required for the non-static field, method, or property 'AdminController.STG_Route'

STG_Route is an object of a class, this class is STG_Route

STG_Route class code :

public class STG_Route:Routes
{
    public override string ADD => "/STG/Add";
    public override string SHOW => "/STG/Show";
    public override string PROFILE => "/STG/{CODE}";
}

Routes is another class

Please any help about how can I use value of a ADD property inside [Route()]

Thanks in advance.

Answer 1

User-474980206 posted

c# attributes only support static values as they are resolved at compile. try:

public class STG_Route:Routes
{
    public const string ADD = "/STG/Add";
    public const string SHOW = "/STG/Show";
    public const string PROFILE = "/STG/{CODE}";
}

[Route(STG_Route.ADD)]

of course, static fields can not be overridden

Answer 2

User1236783433 posted

This doesn't help, thanks for your time bro

Answer 3

User1686398519 posted

Hi,  MBARK

An overriding property must be virtual, abstract and STG_Route inherits from Routes, ADD cannot be defined as a const string type, and then you cannot use STG_Route.ADD in Route[()]. I suggest that you do not let STG_Route inherit from Routes and assign values ​​directly to ADD.

This link can better help you understand the Route attribute.

STG_Route

    public class STG_Route
    {
        public const string ADD="/STG/Add";
        public const string SHOW= "/STG/Show";
        public const string PROFILE= "/STG/{CODE}";
    }

Controller

   public class STGController : Controller
    {
        [Route(STG_Route.ADD)]
        public ActionResult ADD()
        {
            return View();
        }
    }

Best Regards,

YihuiSun

Answer 4

User1236783433 posted

Massive thanks bro, but I got this error 

The route template separator character '/' cannot appear consecutively. It must be separated by either a parameter or a literal value.
Parameter name: routeTemplate

Please any help ?

Answer 5

User1236783433 posted

Sorry it's works fine massive thanks bro