C # How to Use reflection to load the Assembly and call methods of classes in the Assembly

Assume that there is a dog DLL in the C-drive root directory.ProgramSet file. This Assembly file contains a method called a dog in the dog class. How to load this c: \ dog through reflection. DLL, and call the sound method in the dog class:

Public class dog

{

Public void sound (INT count)

{Console. writeline ("{0} sound", count );}

}

The details are as follows:

First, reflection mainly uses the system. Reflection namespace, so the program must reference this namespace.

Using system. reflection;
Write a test as follows:

Public void test ()

{

String assemblyfilepath = @ "C: \ dog. dll ";

Assembly ass = assembly. LoadFile (assemblyfilepath );

Type T = ass. GetType ("dog", false, false );

Methodinfo info = T. getmethod ("sound ");

Object instance = activator. createinstance (t );

Info. Invoke (instance, new object [] {2}); // two calls from a dog

}