Building a Web Site with Ajax: Visual QuickProject Guide by Larry Ullman

By Larry Ullman

Ajax is on the middle of the net 2.0 revolution. it's not a know-how yet, fairly, is a method that leverages different applied sciences and methods, akin to CSS, XML, DHTML, and XHTML. Many internet designers and programmers wish to contain Ajax of their initiatives due to the remarkable performance it could upload to a website, yet they cannot a result of steep studying curve. that is the place this ebook steps in. It makes studying Ajax enjoyable and simple -- an excellent spot to begin! visible QuickProject publications specialise in a unmarried undertaking. to that end the venture is making a company worker listing, like an deal with booklet. what is being created is a greater, new form of site.

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18 browsing employees create a style sheet The CSS style sheet is a separate document that dictates how the pages look. Create a new file in your test editor or IDE, containing this code. error { font-weight: bold; color: #C00 } #results { border: medium solid #390; display: none; padding-left: 10px; width: 300px; } The body section sets the default font for the entire HTML page. The second section formats text with a class value of name. php. The third section applies some formatting to any errors (which will have a class value of error), like those created in both PHP scripts.

3 Error messages are printed if either attempt fails. If so, the script then terminates because there’s no need to go on without a database connection. 4 Save this file as mysql. html. 18 browsing employees create a style sheet The CSS style sheet is a separate document that dictates how the pages look. Create a new file in your test editor or IDE, containing this code. error { font-weight: bold; color: #C00 } #results { border: medium solid #390; display: none; padding-left: 10px; width: 300px; } The body section sets the default font for the entire HTML page.

2 If a department ID was passed to this page in the URL, type-cast it (force it to be an integer). php $did = 0; if (isset($_GET[‘did’])) { $did = (int) $_GET[‘did’]; } if ($did > 0) { } else { // Invalid department ID! > 3 If the result is a positive integer, we can go ahead and query the database. 4 If the result isn’t a positive integer, print an error message instead. 32 browsing using Ajax print the employees The PHP page prints the list of employees in the given department. To do so, a database query is required.

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