.net3.5新しい機能

このキーワードでクラスに拡張メソッドを追加する

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace test

{

    class Class1

    {

        public string code = "2";

        private void Show()

        {

            Console.Write(this.GetAddress());

        }

    }



    public static class Class2

    {

        public static string GetAddress(this Class1 c1)

        {

            switch (c1.code)

            {

                case "1":

                    return " ";

                case "2":

                    return " ";

                default:

                    return " ";

            }

        }

    }

}

インタフェースを拡張する方法でもあり、インタフェースを実装するクラスにもその方法があります.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace test

{

    interface Inter

    {

        public string Code { get; set; }

    }

    public class Class1 : Inter

    {

        private void Show()

        {

            Console.Write(this.GetAddress());

        }



        private void Haha()

        {

            Console.Write(" ".GetHaha());

        }



        public string Code

        {

            get;

            set;

        }

    }



    public static class Class2

    {



        public static string GetAddress(this Inter c1)

        {

            switch (c1.Code)

            {

                case "1":

                    return " ";

                case "2":

                    return " ";

                default:

                    return " ";

            }

        }



        public static string GetHaha(this string str)

        {

            return str + " ";

        }

    }

}

反射:
.NET反射の定義:メタデータをレビューし、そのタイプ情報を収集する機能.
http://www.cnblogs.com/focusonnet/archive/2009/04/17/1438013.htmlこの文章はいいですね.
プログラムセット:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace ClassLibrary1

{

    public interface IWel

    {

        String Print();

    }



    public class Arithmetic:IWel

    {

        int _num1;

        public int Num1 { get { return _num1; } set { _num1 = value; } }

        int _num2;

        public int Num2 { get { return _num2; } set { _num2 = value; } }



        public Arithmetic() { }



        public Arithmetic(int num1, int num2)

        {

            _num1 = num1;

            _num2 = num2;

        }



        public String Add(int num1, int num2)

        {

            Console.WriteLine("{0}+{1}={2}", num1, num2, num1 + num2);

            return "Add(int num1,int num2) ";

        }



        private string Add()

        {

            return "Add() ";

        }



        private void Subtration(int num1, int num2)

        {

            Console.WriteLine("{0}-{1}+Subtration(int num1,int num2)" +

                " ", num1, num2, num1 - num2);

        }



        public static void Multiplication(int num1, int num2)

        {

            Console.WriteLine("{0}*{1}={2} Multipcation(int num1,int num2)" +

                " ", num1, num2, num1 * num2);

        }



        private static void Multiplication()

        {

            Console.WriteLine("Multiplication() ";

        }



        #region Iwel  

        public string Print()

        {

            return " ";

        }

        #endregion

    }

}

コンソールコード:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using ClassLibrary1;

using System.Reflection;



namespace ConsoleApplication1

{

    class Program

    {

        delegate void TestDelegage(int num1, int num2);

        static void Main(string[] args)

        {

            Assembly assembly = Assembly.Load("ClassLibrary1");

            Console.WriteLine(" ");

            foreach (Type var in assembly.GetTypes())

            {

                Console.WriteLine(var.Name + " ClassLibrary1 ");

            }



            Console.WriteLine(" ");

            Module[] modules = assembly.GetModules();

            foreach (Module va in modules)

            {

                Console.WriteLine(va.Name);

            }



            Type type = typeof(ClassLibrary1.Arithmetic);

            Console.WriteLine("{0} public {1}", type, type.IsPublic);



            PropertyInfo[] memberinfo = type.GetProperties();// 

            foreach (PropertyInfo var in memberinfo)

            {

                Console.WriteLine(type + " " + var.Name);

            }



            Type[] t=type.GetInterfaces();

            foreach(Type var in t)

            {

                Console.WriteLine(var.Name+" ");

            }



            MethodInfo[] method = type.GetMethods(BindingFlags.Instance | BindingFlags.NonPublic);

            foreach (MethodInfo var in method)

            {

                Console.WriteLine(" : ={0}  ={1}", var.Name, var);

            }



            MethodInfo[] methodpublic = type.GetMethods(BindingFlags.Instance | BindingFlags.Public);

            foreach (MethodInfo var in methodpublic)

            {

                Console.WriteLine(" : ={0}  {1}", var.Name, var);

            }



            MethodInfo[] methodstatic = type.GetMethods(BindingFlags.Public | BindingFlags.Static);

            foreach (MethodInfo var in methodstatic)

            {

                Console.WriteLine(" ={0}  ={1}", var.Name, var);

            }



            MethodInfo[] methodprivatestatic=type.GetMethods(BindingFlags.NonPublic|BindingFlags.Static)

            foreach(MethodInfo var in methodprivatestatic)

            {

                Console.WriteLine(" ={0}  {1}",var.Name,var);

            }



            ConstructorInfo[] con=type.GetConstructors();

            foreach(ConstructorInfo var in con)

            {

                Console.WriteLine(var);

            }

            

            object obj=Activator.CreateInstance(type,null);

            MethodInfo men1=type.GetMethod("Add");

            Console.WriteLine(" {0} ",men1);

            object[] nums1={5,4};

            Console.WriteLine(men1.Invoke(obj,nums1));



            MethodInfo men2=type.GetMethod("Add",BindingFlags.Instance|BindingFlags.NonPublic);

            Console.WriteLine(men2.Invoke(obj,nums1));



            MethodInfo men3=type.GetMethod("Multiplication",BindingFlags.Public|BindingFlags.Static);

            object[] nums2={5,6};

            men3.Invoke(null,nums2);



            MethodInfo men4=type.GetMethod("Multiplication",BindingFlags.Static|BindingFlags.NonPublic);

            men4.Invoke(null,null);



            TestDelegage dele=(TestDelegage)Delegate.CreateDelegate(typeof(TestDelegage),obj,"Subtration");

            dele(9,3);

        }

    }

}

特性:また明日見ましょう