Type InvokeMember()用法简介

举例：
  Type tDate = typeof(System.DateTime);
   Object result = tDate.InvokeMember("Now",
           BindingFlags.GetProperty, null, null, new Object[]);
   Console.WriteLine(result.ToString());  
 
  例2：  /*注意：下面备注的方法都是其他类的方法，比如：TestClass类方法*/
  TestClass tc = new TestClass (); //AddUp为tc的方法
  tc.GetType().InvokeMember ("AddUp", BindingFlags.Public |
               BindingFlags.Instance | BindingFlags.CreateInstance,
               null, tc, new object [] {});
/*
    public void AddUp ()
       {
           methodCalled++;
           Console.WriteLine ("AddUp Called {0} times", methodCalled);
       }
*/
//----------------------------下面传参数 执行ComputeSum方法 带有两个参数
Type t = typeof (TestClass);
  object [] args = new object [] {100.09, 184.45};
  object result = t.InvokeMember ("ComputeSum", BindingFlags.InvokeMethod, null, null, args);
   /*
    public static double ComputeSum (double d1, double d2)
       {
           return d1 + d2;
       }
*/
  //-----------SayHello为静态方法调用
   t.InvokeMember ("SayHello", BindingFlags.InvokeMethod | BindingFlags.Public | BindingFlags.Static, null, null, new object [] {});
  //-----------实例方法调用
   TestClass c = new TestClass ();
  c.GetType().InvokeMember ("AddUp", BindingFlags.InvokeMethod, null, c, new object [] {});  
 
  c.GetType().InvokeMember ("AddUp", BindingFlags.Public |
               BindingFlags.Instance | BindingFlags.CreateInstance,
               null, c, new object [] {});  
 
  //----------获取字段
   result = t.InvokeMember ("Name", BindingFlags.GetField | BindingFlags.GetProperty, null, c, new object [] {});
   result = t.InvokeMember ("Value", BindingFlags.GetField | BindingFlags.GetProperty, null, c, new object [] {});
/*
    public String Name;
    public Object Value
       {
           get
           {
               return "the value";
           }
       }
*/
   result = t.InvokeMember ("Name", BindingFlags.GetField, null, c, new object [] {});
  //---------设置字段
   t.InvokeMember ("Name", BindingFlags.SetField, null, c, new object [] {"NewName"}); //NewName设置的属性值
  //---------调用类方法 带参数
   object[] argValues = new object [] {"Mouse", "Micky"};
   String [] argNames = new String [] {"lastName", "firstName"};
   t.InvokeMember ("PrintName", BindingFlags.InvokeMethod, null, null, argValues, null, null, argNames);
   /*
    public static void PrintName (String firstName, String lastName)
       {
           Console.WriteLine ("{0},{1}", lastName,firstName);
       }
*/
TestClass obj = new TestClass();
System.Reflection.MethodInfo methInfo =
               obj.GetType().GetMethod("PrintName");
           methInfo.Invoke(obj,BindingFlags.SuppressChangeType |
               BindingFlags.InvokeMethod, null,new object[]
               {"Brad","Smith"},null);  
 
   methInfo = obj.GetType().GetMethod("PrintName");
           methInfo.Invoke(obj,BindingFlags.IgnoreCase |   //忽略大小写 指定当绑定时不应考虑成员名的大小写
               BindingFlags.InvokeMethod, null,new object[]
               {"brad","smith"},null);  
 
methInfo = obj.GetType().GetMethod("PrintName");
           methInfo.Invoke(obj,BindingFlags.IgnoreReturn |  // 在 COM interop 中用于指定可以忽略成员的返回值
               BindingFlags.InvokeMethod, null,new object[]
               {"Brad","Smith"},null);   
 
 methInfo = obj.GetType().GetMethod("PrintName");
           methInfo.Invoke(obj,BindingFlags.OptionalParamBinding |
               BindingFlags.InvokeMethod, null,new object[]
               {"Brad","Smith"},null);  
 
           // BindingFlags.ExactBinding
           methInfo = obj.GetType().GetMethod("PrintName");
           methInfo.Invoke(obj,BindingFlags.ExactBinding |
               BindingFlags.InvokeMethod, null,new object[]
               {"Brad","Smith"},null);  
 
           // BindingFlags.FlattenHierarchy
           methInfo = obj.GetType().GetMethod("PrintName");
           methInfo.Invoke(obj,BindingFlags.FlattenHierarchy |
               BindingFlags.InvokeMethod, null,new object[]
               {"Brad","Smith"},null);
  //----------调用一个默认的方法
   Type t3 = typeof (TestClass2);
/*
[DefaultMemberAttribute ("PrintTime")]
   public class TestClass2
   {
       public void PrintTime ()
       {
           Console.WriteLine (DateTime.Now);
       }
   }
*/
   t3.InvokeMember ("", BindingFlags.InvokeMethod | BindingFlags.Default, null, new TestClass2(), new object [] {});
//---------调用一个引用方法
 MethodInfo m = t.GetMethod("Swap");
  args = new object[];
     args[] = ;
     args[] = ;
     m.Invoke(new TestClass(),args);
 /*
    public void Swap(ref int a, ref int b)  交换 a b
       {
           int x = a;
           a = b;
           b = x;
       }
 */