1. Create a DLL for reflection.
Create a C # class library project and copySource codeCompile and generate the DLL as follows (if the DLL file name is testreflect. dll)
1 Using System;
2
3 Namespace Webtest
4 {
5 /**/ /// <Summary>
6 ///Reflecttest abstract description.
7 /// </Summary>
8 Public Class Reflecttest
9 {
10 Public Reflecttest ()
11 {}
12
13 Public String Writestring ( String S)
14 {
15Return "Welcome," +S;
16}
17
18 /**/ /// <Summary>
19 /// Dsajkjflasjdfalksdjfaskfd
20 /// </Summary>
21 /// <Param name = "S"> </param>
22 /// <Returns> </returns>
23 Public Static String Writename ( String S)
24 {
25Return "Welcome," +S;
26}
27
28 Public String Writenopara ()
29 {
30Return "You are using a non-parameter method.";
31}
32 }
33 }
34
35
36
2. Example of reflection
Add the following functions to the ASPNET page:
1 Public Void Test1 ()
2 {
3 System. reflection. Assembly ass;
4 Type type;
5 Object OBJ;
6 Try
7 {
8 Ass = System. reflection. Assembly. LoadFile ( @" D: \ testreflect. dll " );
9 Type = Ass. GetType ( " Webtest. reflecttest " ); // Must use namespace + class name
10 System. reflection. methodinfo Method = Type. getmethod ( " Writestring " ); // Method Name
11 OBJ = Ass. createinstance ( " Webtest. reflecttest " ); // Must use namespace + class name
12 String S = ( String ) Method. Invoke (OBJ, New String [] {"Wahaha"} ); // Instance method call
13
14 Response. Write (S + " <Br> " );
15 Method = Type. getmethod ( " Writename " ); // Method Name
16 S = ( String ) Method. Invoke ( Null , New String [] {"Wahaha "} ); // Call static methods
17 Response. Write (S + " <Br> " );
18
19 Method = Type. getmethod ( " Writenopara " ); // Example method without Parameters
20 S = ( String ) Method. Invoke (OBJ, Null );
21 Response. Write (S + " <Br> " );
22 Method = Null ;
23 }
24 Catch (Exception ex)
25 {
26Response. Write (ex+"<Br>");
27}
28 Finally
29 {
30 Ass = Null ;
31 Type = Null ;
32 OBJ = Null ;
33 }
34 }
35
