fix framework & add FSM

DesignPattern/Adapter/Adapter.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Adapter</RootNamespace>
     <AssemblyName>Adapter</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/Adapter/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Bridge/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Bridge/Bridge.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Bridge</RootNamespace>
     <AssemblyName>Bridge</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/Builder/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Builder/Builder.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Builder</RootNamespace>
     <AssemblyName>Builder</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/ChainOfResponsibility/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/ChainOfResponsibility/ChainOfResponsibility.csproj

@@ -8,10 +8,11 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>ChainOfResponsibility</RootNamespace>
     <AssemblyName>ChainOfResponsibility</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>

DesignPattern/Command/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Command/Command.csproj

@@ -8,10 +8,11 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Command</RootNamespace>
     <AssemblyName>Command</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>

DesignPattern/Composite/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Composite/Composite.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Composite</RootNamespace>
     <AssemblyName>Composite</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/Decorator/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Decorator/Decorator.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Decorator</RootNamespace>
     <AssemblyName>Decorator</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/DesignPattern.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
+# Visual Studio 2013
-VisualStudioVersion = 17.3.32811.315
+VisualStudioVersion = 12.0.40629.0
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Singleton", "Singleton\Singleton.csproj", "{37FE4D0C-A213-4EA5-B3EF-DB2DB3971ACE}"
 EndProject
@@ -43,6 +43,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "State", "State\State.csproj
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "State-VendingMachineExample", "State-VendingMachineExample\State-VendingMachineExample.csproj", "{ED14B6E2-04BB-4F77-80E7-C5F0E945B750}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FSM", "FSM\FSM.csproj", "{2134D7A9-3A4B-4DA8-871E-96B913D89288}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -129,6 +131,10 @@ Global
 		{ED14B6E2-04BB-4F77-80E7-C5F0E945B750}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{ED14B6E2-04BB-4F77-80E7-C5F0E945B750}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{ED14B6E2-04BB-4F77-80E7-C5F0E945B750}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2134D7A9-3A4B-4DA8-871E-96B913D89288}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2134D7A9-3A4B-4DA8-871E-96B913D89288}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2134D7A9-3A4B-4DA8-871E-96B913D89288}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2134D7A9-3A4B-4DA8-871E-96B913D89288}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

DesignPattern/FSM/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8"/>
+    </startup>
+</configuration>

DesignPattern/FSM/FSM.csproj

@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{2134D7A9-3A4B-4DA8-871E-96B913D89288}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>FSM</RootNamespace>
+    <AssemblyName>FSM</AssemblyName>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Machines\EquipmentEvent.cs" />
+    <Compile Include="Machines\EquipmentStateMachine.cs" />
+    <Compile Include="States\EmergencyStoppedState.cs" />
+    <Compile Include="States\IdleState.cs" />
+    <Compile Include="States\IEquipmentState.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="States\PausedState.cs" />
+    <Compile Include="States\RunningState.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <ItemGroup />
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

DesignPattern/FSM/Machines/EquipmentEvent.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FSM.Machines
+{
+    public enum EquipmentEvent
+    {
+        Start,
+        Pause,
+        Resume,
+        Stop,
+        EmergencyStop,
+    }
+}

DesignPattern/FSM/Machines/EquipmentStateMachine.cs

@@ -0,0 +1,62 @@
+using FSM.States;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FSM.Machines
+{
+    public class EquipmentEventHandler
+    {
+        public IEquipmentState CurrentState { get; private set; }
+        public EquipmentEvent EquipmentEvent { get; private set; }
+        public string Message { get; private set; }
+
+        public EquipmentEventHandler(IEquipmentState currentState, EquipmentEvent equipmentEvent, string message)
+	    {
+            CurrentState = currentState;
+            EquipmentEvent = equipmentEvent;
+            Message = message;
+	    }
+    }
+
+    public class EquipmentStateMachine
+    {
+        private IEquipmentState _currentState;
+
+        public event EventHandler<EquipmentEventHandler> OnHandleEvent;
+
+        public EquipmentStateMachine(IEquipmentState initialState)
+        {
+            _currentState = initialState;
+            _currentState.Enter();
+        }
+
+        public void SetState(IEquipmentState newState)
+        {
+            _currentState.Exit();
+            _currentState = newState;
+            _currentState.Enter();
+        }
+
+        public void HandleEvent(EquipmentEvent equipmentEvent)
+        {
+            if (OnHandleEvent != null)
+                OnHandleEvent(this, new EquipmentEventHandler(_currentState, equipmentEvent, "HandleEvent called"));
+
+            bool handleResult = _currentState.HandleEvent(equipmentEvent, this);
+            if (OnHandleEvent != null)
+            {
+                string message;
+
+                if (handleResult)
+                    message = "Success to handle the event";
+                else
+                    message = "Fail to handle the event";
+
+                OnHandleEvent(this, new EquipmentEventHandler(_currentState, equipmentEvent, message));
+            }
+        }
+    }
+}

DesignPattern/FSM/Program.cs

@@ -0,0 +1,59 @@
+using FSM.Machines;
+using FSM.States;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace FSM
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            PrintMessage("********** Start of the program **********");
+
+            IEquipmentState initialState = new IdleState();
+            var machine = new EquipmentStateMachine(initialState);
+            machine.OnHandleEvent -= machine_OnHandleEvent;
+            machine.OnHandleEvent += machine_OnHandleEvent;
+
+            List<EquipmentEvent> eventCommands = new List<EquipmentEvent>()
+            {
+                EquipmentEvent.Start,
+                EquipmentEvent.Pause,
+                EquipmentEvent.Resume,
+                EquipmentEvent.Stop,
+                EquipmentEvent.Start,
+                EquipmentEvent.EmergencyStop,
+                EquipmentEvent.Resume,
+                EquipmentEvent.Stop,
+                EquipmentEvent.Start,
+                EquipmentEvent.Stop,
+            };
+
+            foreach (EquipmentEvent evt in eventCommands)
+            {
+                machine.HandleEvent(evt);
+                Thread.Sleep(1000);
+            }
+
+            PrintMessage("********** End of the program **********" + Environment.NewLine);
+            PrintMessage("********** Press any key to exit the program **********");
+            Console.ReadKey();
+        }
+
+        private static void machine_OnHandleEvent(object sender, EquipmentEventHandler e)
+        {
+            string message = string.Format("{0} (State: {1}, Event: {2})", e.Message, e.CurrentState, e.EquipmentEvent);
+            PrintMessage(message);
+        }
+
+        static void PrintMessage(string message)
+        {
+            Console.WriteLine(string.Format("[{0}] {1}", DateTime.Now, message));
+        }
+    }
+}

DesignPattern/FSM/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 어셈블리의 일반 정보는 다음 특성 집합을 통해 제어됩니다.
+// 어셈블리와 관련된 정보를 수정하려면
+// 이 특성 값을 변경하십시오.
+[assembly: AssemblyTitle("FSM")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("FSM")]
+[assembly: AssemblyCopyright("Copyright ©  2024")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// ComVisible을 false로 설정하면 이 어셈블리의 형식이 COM 구성 요소에 
+// 표시되지 않습니다.  COM에서 이 어셈블리의 형식에 액세스하려면 
+// 해당 형식에 대해 ComVisible 특성을 true로 설정하십시오.
+[assembly: ComVisible(false)]
+
+// 이 프로젝트가 COM에 노출되는 경우 다음 GUID는 typelib의 ID를 나타냅니다.
+[assembly: Guid("6b478191-f47e-47cc-b9d4-3fb2460029b6")]
+
+// 어셈블리의 버전 정보는 다음 네 가지 값으로 구성됩니다.
+//
+//      주 버전
+//      부 버전 
+//      빌드 번호
+//      수정 버전
+//
+// 모든 값을 지정하거나 아래와 같이 '*'를 사용하여 빌드 번호 및 수정 버전이 자동으로
+// 지정되도록 할 수 있습니다.
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

DesignPattern/FSM/States/EmergencyStoppedState.cs

@@ -0,0 +1,34 @@
+using FSM.Machines;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FSM.States
+{
+    class EmergencyStoppedState : IEquipmentState
+    {
+        public void Enter()
+        {
+            Console.WriteLine("Entering EmergencyStoppedState");
+        }
+
+        public void Exit()
+        {
+            Console.WriteLine("Exiting EmergencyStoppedState");
+        }
+
+        public bool HandleEvent(EquipmentEvent equipmentEvent, Machines.EquipmentStateMachine machine)
+        {
+            switch (equipmentEvent)
+            {
+                case EquipmentEvent.Stop:
+                    machine.SetState(new IdleState());
+                    return true;
+                default:
+                    return false;
+            }
+        }
+    }
+}

DesignPattern/FSM/States/IEquipmentState.cs

@@ -0,0 +1,17 @@
+using FSM.Machines;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FSM.States
+{
+    public interface IEquipmentState
+    {
+        void Enter();
+        void Exit();
+
+        bool HandleEvent(EquipmentEvent equipmentEvent, EquipmentStateMachine machine);
+    }
+}

DesignPattern/FSM/States/IdleState.cs

@@ -0,0 +1,37 @@
+using FSM.Machines;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FSM.States
+{
+    class IdleState : IEquipmentState
+    {
+        public void Enter()
+        {
+            Console.WriteLine("Entering IdleState");
+        }
+
+        public void Exit()
+        {
+            Console.WriteLine("Exiting IdleState");
+        }
+
+        public bool HandleEvent(EquipmentEvent equipmentEvent, Machines.EquipmentStateMachine machine)
+        {
+            switch (equipmentEvent)
+            {
+                case EquipmentEvent.Start:
+                    machine.SetState(new RunningState());
+                    return true;
+                case EquipmentEvent.EmergencyStop:
+                    machine.SetState(new EmergencyStoppedState());
+                    return true;
+                default:
+                    return false;
+            }
+        }
+    }
+}

DesignPattern/FSM/States/PausedState.cs

@@ -0,0 +1,40 @@
+using FSM.Machines;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FSM.States
+{
+    class PausedState : IEquipmentState
+    {
+        public void Enter()
+        {
+            Console.WriteLine("Entering PausedState");
+        }
+
+        public void Exit()
+        {
+            Console.WriteLine("Exiting PausedState");
+        }
+
+        public bool HandleEvent(EquipmentEvent equipmentEvent, Machines.EquipmentStateMachine machine)
+        {
+            switch (equipmentEvent)
+            {
+                case EquipmentEvent.Resume:
+                    machine.SetState(new RunningState());
+                    return true;
+                case EquipmentEvent.Stop:
+                    machine.SetState(new IdleState());
+                    return true;
+                case EquipmentEvent.EmergencyStop:
+                    machine.SetState(new EmergencyStoppedState());
+                    return true;
+                default:
+                    return false;
+            }
+        }
+    }
+}

DesignPattern/FSM/States/RunningState.cs

@@ -0,0 +1,40 @@
+using FSM.Machines;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FSM.States
+{
+    class RunningState : IEquipmentState
+    {
+        public void Enter()
+        {
+            Console.WriteLine("Entering RunningState");
+        }
+
+        public void Exit()
+        {
+            Console.WriteLine("Exiting RunningState");
+        }
+
+        public bool HandleEvent(EquipmentEvent equipmentEvent, Machines.EquipmentStateMachine machine)
+        {
+            switch (equipmentEvent)
+            {
+                case EquipmentEvent.Pause:
+                    machine.SetState(new PausedState());
+                    return true;
+                case EquipmentEvent.Stop:
+                    machine.SetState(new IdleState());
+                    return true;
+                case EquipmentEvent.EmergencyStop:
+                    machine.SetState(new EmergencyStoppedState());
+                    return true;
+                default:
+                    return false;
+            }
+        }
+    }
+}

DesignPattern/Facade/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Facade/Facade.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Facade</RootNamespace>
     <AssemblyName>Facade</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/Factory/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Factory/Factory.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Factory</RootNamespace>
     <AssemblyName>Factory</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/Iterator/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Iterator/Iterator.csproj

@@ -8,10 +8,11 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Iterator</RootNamespace>
     <AssemblyName>Iterator</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>

DesignPattern/ObjectPool/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/ObjectPool/ObjectPool.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>ObjectPool</RootNamespace>
     <AssemblyName>ObjectPool</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/Observer/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Observer/Observer.csproj

@@ -8,10 +8,11 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Observer</RootNamespace>
     <AssemblyName>Observer</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>

DesignPattern/Prototype/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Prototype/Prototype.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Prototype</RootNamespace>
     <AssemblyName>Prototype</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/Proxy/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Proxy/Proxy.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Proxy</RootNamespace>
     <AssemblyName>Proxy</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/Singleton/App.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Singleton/Singleton.csproj

@@ -8,7 +8,7 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Singleton</RootNamespace>
     <AssemblyName>Singleton</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>

DesignPattern/State-VendingMachineExample/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/State-VendingMachineExample/State-VendingMachineExample.csproj

@@ -8,10 +8,11 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>State_VendingMachineExample</RootNamespace>
     <AssemblyName>State-VendingMachineExample</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>

DesignPattern/State/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/State/State.csproj

@@ -8,10 +8,11 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>State</RootNamespace>
     <AssemblyName>State</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>

DesignPattern/Strategy/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Strategy/Strategy.csproj

@@ -8,10 +8,11 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Strategy</RootNamespace>
     <AssemblyName>Strategy</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>

DesignPattern/Template/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Template/Template.csproj

@@ -8,10 +8,11 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Template</RootNamespace>
     <AssemblyName>Template</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>

DesignPattern/Visitor/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
 </configuration>

DesignPattern/Visitor/Visitor.csproj

@@ -8,10 +8,11 @@
     <OutputType>Exe</OutputType>
     <RootNamespace>Visitor</RootNamespace>
     <AssemblyName>Visitor</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>