static void Main_ObjectInstance(string[] args)
{
//有了一个类型对象后(Type的派生类实例如RuntimeType实例), 如何用他创建一个对象
Version v = typeof(System.Object).Assembly.GetName().Version;
string asb = "System.Messaging, PublicKeyToken=b03f5f7f11d50a3a, Culture=neutral, Version=" + v.ToString();
Assembly msxml = Assembly.Load(asb);
Type[] types = msxml.GetExportedTypes();
Console.WriteLine("All types defined in System.Messaging.dll:");
foreach (Type ty in types)
{
Console.WriteLine(ty.FullName);
}
Console.WriteLine(Environment.NewLine);
Type t = types[types.Length - 5];
string assemblyName = t.Assembly.FullName;
string typename = t.FullName;
Console.WriteLine(typename);
Console.WriteLine(assemblyName);
Console.WriteLine(Environment.NewLine);
//-
object m1 = System.Activator.CreateInstance(t); //Type参数及ctor参数
Console.WriteLine("m1 : " + m1.GetType());
//-
//ObjectHandle oh = Activator.CreateComInstanceFrom(assemblyName, typename); //TODO 怎么传
//object m2 = oh.Unwarp();
//-
AppDomain ad = AppDomain.CurrentDomain;
object m3 = ad.CreateInstanceAndUnwrap(assemblyName, typename);
Console.WriteLine("m3 : " + m3.GetType());
//-
//object m4 = t.InvokeMember();
//-
//object m5 = t.GetConstructor().Invoke(null);
//- 数组
int[] arr = (int[])System.Array.CreateInstance(typeof(int), 5);
Console.WriteLine("Array : " + arr.GetType());
Console.WriteLine(arr.Length);
//- 委托
MyDel md = (MyDel)System.Delegate.CreateDelegate(typeof(MyDel), typeof(Chapter23_Assembly_ObjectInstance).GetMethod("SomeMethod"), true);
Console.WriteLine("Delegate : " + md.GetType());
Console.WriteLine(md.GetInvocationList().Length);
//- 泛型类型
Type open = typeof(TestGeneraic <,>);
Type close = open.MakeGenericType(typeof(string), typeof(int));
object m6 = Activator.CreateInstance(close);
Console.WriteLine("m6 : " + m6.GetType());
}
