.NET反射的简单示例

核心提示：(1)namespace ClassLibrarySport{ public abstract class Sport { PRotected string name; public abstract string GetName(); public abstract string GetDuration()

(1)namespace ClassLibrarySport

{

　  public abstract class Sport

　  {

　  PRotected string name;

　  public abstract string GetName();

　  public abstract string GetDuration();

　  }

}

= = = = = == = == = == = == = == = == = == = == = == = == = == = == = == = == = == = =

(2)namespace ClassLibrarySomeSports//该项目添加了对(1)的引用

{

　  public class Football : ClassLibrarySport.Sport

　  {

　  public Football()

　  {

　　　  name = "Football";

　  }

　  public override string GetName()

　  {

　　　  return name;

　  }

　  public override string GetDuration()

　  {

　　　  return "four 15 minute quarters";

　  }

　  }

}

= = = = = == = == = == = == = == = == = == = == = == = == = == = == = == = == = == = =

(3)namespace ConsoleAssemblyTest//该项目添加了对(1)的引用

{

　  class Program

　  {

　  static void Main(string[] args)

　  {

　　　  Assembly assembly = Assembly.LoadFrom(@"E:\ClassLibrarySomeSports\

bin\Debug\ClassLibrarySomeSports.dll");

　　　  Type[] types = assembly.GetTypes();

　　　  Console.WriteLine("Get Type From ClassLibrarySomeSports.dll:");

　　　  for (int i = 0; i < types.Length; i++)

　　　  {

　　　　　  Console.WriteLine(types[i].Name);

　　　  }

　　　  //使用GetConstructor()方法获取对应类型的构造器，从而构造出该类型的对象

　　　  Console.WriteLine("Use Method GetConstructor():");

　　　  ConstructorInfo ci = types[0].GetConstructor(new Type[0]);

　　　  ClassLibrarySport.Sport sport = (ClassLibrarySport.Sport)ci.Invoke(new object[0]);

　　　  Console.WriteLine(sport.GetName() + " has " + sport.GetDuration());

　　　  //使用Activator.CreateInstance()方法构造出该类型的对象

//使用assembly.CreateInstance()返回为null，？？

　　　  Console.WriteLine("Use Method CreateInstance():");

　　　  ClassLibrarySport.Sport sport1 = (ClassLibrarySport.Sport)

Activator.CreateInstance(types[0]);

　　　  Console.WriteLine(sport1.GetName() + " has " + sport1.GetDuration());

　　　  //反射指定类型中的名称为“GetDuration”的方法，通过Invoke()方法执行该方法

　　　  object objsport = Activator.CreateInstance(types[0]);

　　　  MethodInfo method = types[0].GetMethod("GetDuration");

　　　  object o = method.Invoke(objSport, new object[0]);

　　　  Console.WriteLine(o as string);

　　　  Console.Read();

　  }

　  }

}

= = = = = == = == = == = == = == = == = == = == = == = == = == = ==

Output:

Get Type From ClassLibrarySomeSports.dll:

Football

Use Method GetConstructor():

Football has four 15 minute quarters

Use Method CreateInstance():

Football has four 15 minute quarters

four 15 minute quarters

http://www.cnblogs.com/KissKnife/archive/2006/08/13/475717.html