Which is the first event of ASP.NET page when user requests a web page?

Control is fully qualified name of base class of all server controls. Q.

Preinit is first event of ASP.NET page, when user requests a web page – ASP.NET.

Hypertext Transfer Protocol (HTTP) Created by Pamela Fox. Whenever you visit a page on the web, your computer uses the Hypertext Transfer Protocol (HTTP) to download that page from another computer somewhere on the Internet.