如何动态访问类的属性

Question

    using System;     namespace Webtest
     {        public interface interface1
         {
              int add();         }
         public class ReflectTest:interface1
         {             public String Write;
             private String Writec;             public String Writea
             {
                 get
                 {
                     return Write;
                 }
                 set
                 {
                     Write = value;
                 }             }             private String Writeb
             {
                 get
                 {
                     return Writec;
                 }
                 set
                 {
                     Writec = value;
                 }             }              public ReflectTest()
              {
                  this.Write = "Write";
                  this.Writec = "Writec";
              }             public ReflectTest(string str1,string str2)
             {
                 this.Write = str1;
                 this.Writec = str2;         }             public string WriteString(string s,int b)
             {
                 return "欢迎您，" + s + "---" + b; ;
             }              public static string WriteName(string s)
              {
                 return "欢迎您光临，" + s;
              }             public string WriteNoPara()
             {
                return "您使用的是无参数方法";
             }             private string WritePrivate()
             {
                 return "私有类型的方法";
             }
             public int add()
             {
                 return 5;
             }
         }
    }然后,建立再建立一个项目引入该HelloWorld.dll,
    using System;    using System.Threading;
    using System.Reflection;
    class Test
    {
        delegate string TestDelegate(string value,int value1);       static void Main()
        {
            //Assembly t = Assembly.LoadFrom("HelloWorld.dll"); 与下面相同的效果
            Assembly t = Assembly.Load("HelloWorld");
           foreach (Type aaa in t.GetTypes())
           {
                //Console.Write(aaa.Name);   //显示该dll下所有的类
            }
            Module[] modules = t.GetModules();            foreach (Module module in modules)
            {
                //Console.WriteLine("module name:" + module.Name);//显示模块的名字本例为"HelloWorld.dll"
            }
            Type a = typeof(Webtest.ReflectTest);//得到具体的类的类型,和下面一个效果            //Type a = t.GetType("Webtest.ReflectTest");//
            //Console.Write(a.Name);
            string[] bb ={ "aaaa", "bbbbb" };
            object obj = Activator.CreateInstance(a,bb); //创建该类的实例,后面的bb为有参构造函数的参数
            //object obj = t.CreateInstance("Webtest.ReflectTest");//与上面方法相同
            MethodInfo[] miArr = a.GetMethods();
            foreach (MethodInfo mi0 in miArr)
           {
                //Console.Write(mi0.Name);  //显示所有的共有方法
           }
            MethodInfo mi = a.GetMethod("WriteString");//显示具体的方法
            object[] aa={"使用的是带有参数的非静态方法",2};
            string s = (string)mi.Invoke(obj,aa); //带参数方法的调用            MethodInfo mi1 = a.GetMethod("WriteName");
            String[] aa1 ={"使用的是静态方法"};
            string s1 = (string)mi1.Invoke(null, aa1); //静态方法的调用            MethodInfo mi2 = a.GetMethod("WriteNoPara");
            string s2 = (string)mi2.Invoke(obj, null); //不带参数的方法调用            MethodInfo mi3 = a.GetMethod("WritePrivate",BindingFlags.Instance | BindingFlags.NonPublic);
            string s3 = (string)mi3.Invoke(obj, null); //私有类型方法调用            //Console.Write(s3);
            PropertyInfo[] piArr = a.GetProperties(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
            foreach (PropertyInfo pi in piArr)
            {
             //Console.Write(pi.Name);  //显示所有的方法
            }
            PropertyInfo pi1=a.GetProperty("Writea");
            //pi1.SetValue(obj, "Writea", null);
            //Console.Write(pi1.GetValue(obj,null));                    PropertyInfo pi2 = a.GetProperty("Writeb", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
            pi2.SetValue(obj, "Writeb", null);
            //Console.Write(pi2.GetValue(obj, null));            FieldInfo fi1 = a.GetField("Write");
            //Console.Write(fi1.GetValue(obj));
            ConstructorInfo[] ci1 = a.GetConstructors();
            foreach (ConstructorInfo ci in ci1)
            {
                //Console.Write(ci.ToString()); //获得构造函数的形式
            }            ConstructorInfo asCI = a.GetConstructor(new Type[] { typeof(string), typeof(string) });
            //Console.Write(asCI.ToString());
            Webtest.interface1 obj1 = (Webtest.interface1)t.CreateInstance("Webtest.ReflectTest");
            Webtest.ReflectTest obj2 = (Webtest.ReflectTest)t.CreateInstance("Webtest.ReflectTest");
            //Console.Write(obj1.add());典型的工厂模式
            foreach (Type tt in t.GetTypes())
            {
                if (tt.GetInterface("interface1")!=null)
                {
                    Webtest.interface1 obj3 = (Webtest.interface1)Activator.CreateInstance(a);
                    //Console.Write(obj3.add());
                }
            }
            TestDelegate method = (TestDelegate)Delegate.CreateDelegate(typeof(TestDelegate), obj, "WriteString");
             //动态创建委托的简单例子
            Console.Write(method("str1", 2));
            Console.Read();
        }
    }
供你参考