(转)反射技术示例
using System;
using System.Collections.Generic;
using System.Text;
namespace ReflectionDemo
{
public class HelloWorld
{
private string strName = null;
public HelloWorld(string name)
{
strName = name;
}
public HelloWorld()
{
}
public string Name
{
get
{
return strName;
}
}
public void SayHello()
{
if (strName == null)
{
System.Console.WriteLine("Hello World");
}
else
{
System.Console.WriteLine("Hello World,"+strName);
}
}
}
}
using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
namespace ReflectionDemo
{
class Program
{
static void Main(string[] args)
{
System.Console.WriteLine("列出程序集中的所有类型");
Assembly a = Assembly.LoadFrom ("ReflectionDemo.exe");
Type[] mytypes = a.GetTypes( );
foreach (Type t in mytypes)
{
System.Console.WriteLine ( t.Name );
}
System.Console.ReadLine ( );
System.Console.WriteLine ("列出HellWord中的所有方法" );
Type ht = typeof(HelloWorld);
MethodInfo[] mif = ht.GetMethods();
foreach(MethodInfo mf in mif)
{
System.Console.WriteLine(mf.Name);
}
System.Console.ReadLine();
System.Console.WriteLine("实例化HelloWorld,并调用SayHello方法");
Object obj = Activator.CreateInstance(ht); //调用无参数构造函数
string[] s = {"wangjing"};
Object objName = Activator.CreateInstance(ht, s); //调用参数构造函数
MethodInfo msayhello = ht.GetMethod("SayHello");
msayhello.Invoke(obj,null);
msayhello.Invoke(objName,null);
System.Console.ReadLine();
}
}
}
