27.3 Introduction to Web Server
Web applications require a server and a client. The client requests a page from the server and the server returns the page to the client; the page is displayed inside the Internet Explorer.
To develop a web application, you must have a server. The ImageHunt requires Microsoft IIS (Internet Information Services) and the Internet Explorer. You must install IIS before you install C#.
Internet Browsers display pages written in http language, web page. The web pages are stateless, i.e. a page does not store any information about its contents from one page to the next. The equivalent to the Windows version of the ImageFinder is this: when you start the ImageFinder, you are only allowed 1 click; if you want to make another click, close the ImageFinder, restart, and then make your next click.
There are several ways to address this limitation, including the �Get� method and the �Post� method.
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The �Post� method stores cookies on the local machine. If you choose the �Post� method, you must inform your clients to accept cookies.
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The �Get� method sends state information back to the server via the web address.
Later in this chapter, you will need to choose one of the two methods.
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