C # Reflection (ii)

Long time did not review the reflection of knowledge, today to explain the general second use of reflection.

two. Reflection on methods, properties, etc.

You first need to write a test class that generates an. exe or. dll file.

Class Test

{public Test ()//General construction method

{   }

public string WriteString (string s)//argument method

{return "Welcome:" + S; }

public static string staticstring (string s)//static method

{return "Welcome:" + S; }

public string Writestringno ()//No parameter method

{return "Welcome:chen"; }}

Locate the. exe file, which can be temporarily replicated on the desktop for easy searching.

The general invocation of the test class method, using the creation of an object and instantiation to refer to the method, such as:

Test t=new test ();

T.writestring ();

Reflection invocation (calls between two items):

Then create a ConsoleApplication2 console program.

Refer to namespaces using System.Reflection first;

ConsoleApplication2:

Using reflection

static void Main (string[] args)

{

Assembly ass;//Assembly

Type ty;//equivalent to class

Object ob;//is equivalent to objects

string path = @ "C:\Users\Shuang\Desktop\ConsoleApplication1.exe";//assembly path

Assembly.loadfile (path);//Loading assembly

Ty = the. GetType ("Consoleapplication1.test");//Get the Test class name; Format: "Namespace. Class Name"

MethodInfo meth = ty. GetMethod ("writestring");//Get method, Format: "Method name" parameter

MethodInfo meth1 = ty. GetMethod ("Writestringno");//Get method, Format: "Method name" no parameter

MethodInfo meth2 = ty. GetMethod ("staticstring");//Get method, Format: "Method name" static

OB = the. CreateInstance ("Consoleapplication1.test");//Create an object in the format: "namespace. Class Name"

String[] Canshu = {"Chen1"};//parameter array

string res = (string) meth. Invoke (Ob,canshu);//get result; Format: object, parameter (parameter is an object array) parameter

String res1 = (string) meth1. Invoke (ob, NULL);//get result; Format: object, parameter (parameter is an object array) no arguments

String res2 = (string) meth2. Invoke (null, Canshu);///get result; Format: object, parameter (parameter is an object array) static

Console.Write ("Ginseng:" +res+ "\ n");

Console.Write ("No reference:" + res1 + "\ n");

Console.Write ("Static:" + Res2);

Console.ReadLine ();

}

C # Reflection (ii)