asp.net-mvc – ASP.NET MVC – 在ActionFilter中访问控制器属性

public class ValidateActionFilterAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        var yourController = filterContext.Controller as YourController;

        if (yourController == null)
        {
            throw new InvalidOperationException("It is not YourController !!!");
        }

        // It is YourController - validate here
        var yourProperty = yourController.YourProperty;

        // UPDATED ***************************
        // or test whether controller has property

        var property = filterContext.Controller.GetType().GetProperty("YourProperty");

        if(property == null)
        {
            throw new InvalidOperationException("There is no YourProperty !!!");
        }
    }
}