From 390cf4555c52227ad1f672b4cdcfc20fa9da01db Mon Sep 17 00:00:00 2001
From: Jason Zhu <jasonzhuyq@outlook.com>
Date: Tue, 10 Aug 2021 22:58:53 +1000
Subject: [PATCH] 6.1.4: e.g. 6.11 Using a Constructor Property in an
 Implementation Class

---
 chap6_essential_tools_for_mvc/NinjectDemo/Program.cs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/chap6_essential_tools_for_mvc/NinjectDemo/Program.cs b/chap6_essential_tools_for_mvc/NinjectDemo/Program.cs
index 4e013f4..a626bcc 100644
--- a/chap6_essential_tools_for_mvc/NinjectDemo/Program.cs
+++ b/chap6_essential_tools_for_mvc/NinjectDemo/Program.cs
@@ -35,10 +35,16 @@ namespace NinjectDemo
 
     public class DefaultDiscountHelper : IDiscountHelper
     {
-        public decimal DiscountSize { get; set; }
+        private decimal discountRate;
+
+        public DefaultDiscountHelper(decimal discountParam)
+        {
+            discountRate = discountParam;
+        }
+        
         public decimal ApplyDiscount(decimal totalParam)
         {
-            return (totalParam - (DiscountSize * totalParam));
+            return (totalParam - (discountRate / 100m * totalParam));
         }
     }
 }