6.1.4: e.g. 6.9 Adding a Property to an Implementation Class

chap6_essential_tools_for_mvc/NinjectDemo/Program.cs

@@ -32,9 +32,10 @@ namespace NinjectDemo
 
     public class DefaultDiscountHelper : IDiscountHelper
     {
+        public decimal DiscountSize { get; set; }
         public decimal ApplyDiscount(decimal totalParam)
         {
-            return (totalParam - (10m / 100m * totalParam));
+            return (totalParam - (DiscountSize * totalParam));
         }
     }
 }