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解析如何使用反射調(diào)用類型成員方法,字段,屬性

更新時(shí)間：2013年06月09日 08:50:54 作者：

本篇文章是對(duì)使用反射調(diào)用類型成員方法,字段,屬性進(jìn)行了詳細(xì)的分析介紹，需要的朋友參考下

如下所示：

    class Program
    {
        static void Main(string[] args)
        {
            Type t = typeof(Test);
            object result;
            Test tc =new Test();
            Console.WriteLine("Invoke a static method");
            t.InvokeMember("Sayhello",BindingFlags.InvokeMethod | BindingFlags.Static | BindingFlags.Public, null, null, new object[] { });
            Console.WriteLine("------------------------");
            Console.WriteLine("Invoke a generic method");
            List<string> list = new List<string>();
            list.Add("GuoHu");
            list.Add("LeiHu");
            //We should assign the parameter type to generic method By using MakeGenericMethod
            MethodInfo mi = t.GetMethod("Print").MakeGenericMethod(typeof(string));
            mi.Invoke(null, new object[] { list });
            Console.WriteLine("------------------------");
            Console.WriteLine("Invoke a instance method");
            MethodInfo m = t.GetMethod("Swap");
            object[] obj = new object[2];
            obj[0] = 123;
            obj[1] = 230;
            m.Invoke(new Test(), obj);
            Console.WriteLine("{0},{1}", obj[0], obj[1]);
            Console.WriteLine("------------------------");
            Console.WriteLine("output field name");
            FieldInfo[] fi = t.GetFields();
            foreach (FieldInfo name in fi)
            {
                Console.WriteLine("{0}",name);
            }
            Console.WriteLine("------------------------");
            Console.WriteLine("Invoke a method with named parameters");
            object[] argValues = new object[] { "Guo", "Hu" };
            String[] argNames = new String[] { "lastName", "firstName" };
            t.InvokeMember("PrintName", BindingFlags.InvokeMethod, null, null, argValues, null, null, argNames);
            Console.WriteLine("------------------------");
            Console.WriteLine("Get a field value");
            result = t.InvokeMember("Name", BindingFlags.GetField | BindingFlags.GetProperty, null, tc, new object[] { });
            Console.WriteLine("Name == {0}", result);
            Console.WriteLine("------------------------");
            Console.WriteLine("Set a field value");
            t.InvokeMember("Name", BindingFlags.SetField, null, tc, new object[] { "New value" });
            result = t.InvokeMember("Name", BindingFlags.GetField | BindingFlags.GetProperty, null, tc, new object[] { });
            Console.WriteLine("Name == {0}",result);
        }
    }
    class Test
    {
        public string Name;
        public Test()
        {
            Name = "Initilize Name";
        }
        public static void Sayhello()
        {
            Console.WriteLine("Sayhello");
        }
        public static void Print<T>(IEnumerable<T> item)
        {
            foreach (T t in item)
            {
                Console.WriteLine("{0}", t);
            }
        }
        public static void PrintName(String firstName, String lastName)
        {
            Console.WriteLine("{0},{1}", lastName, firstName);
        }
        public void Swap(ref int a, ref int b)
        {
            int x = a;
            a = b;
            b = x;
        }
    }