Using Reflection allows two events to use the same processing method without knowing the method name.

Today, I encountered an interesting problem in the community. How can I use the same processing method for the click event of button1 and the click event of button2 without knowing the method name, I have already answered a similar question, which is implemented using the delegate list class. The Code is as follows:

1. Private void form1_load (Object sender, eventargs E)
2. {
3. Button btn1 = new button ();
4. Btn1.text = "button1 ";
5. Btn1.click + = new eventhandler (delegate (Object S, eventargs E2) {MessageBox. Show (S. tostring ());});
6. Btn1.name = "btn1 ";
7. Btn1.location = new point (10, 10 );
8. This. Controls. Add (btn1 );
9. Button btn2 = new button ();
10. Btn2.text = "button2 ";
11. Btn2.name = "btn2 ";
12. Btn2.location = new point (10, 30 );
13. Type T = btn1.gettype ();
14. Propertyinfo Pi = T. getproperty ("Events", bindingflags. instance | bindingflags. nonpublic); // obtain the event attribute of button1
15. Eventhandlerlist EHL = (eventhandlerlist) PI. getvalue (btn1, null); // obtain the delegate list of button1
16. Fieldinfo = (typeof (Control). getfield ("eventclick", bindingflags. Static | bindingflags. nonpublic );
17. Delegate d = EHL [fieldinfo. getvalue (null)];
18. Btn2.click + = (eventhandler) D;
19. This. Controls. Add (btn2 );
20. }