F - jQueryUI theme "footer" classes ( fg-toolbar ui-widget-header ui-corner-bl ui-corner-br ui-helper-clearfix)įurther to these options, you can also specify additional div elements to be inserted into the document, which can be used for styling / nesting of the control elements.H - jQueryUI theme "header" classes ( fg-toolbar ui-widget-header ui-corner-tl ui-corner-tr ui-helper-clearfix).In addition to the above control options, there are two constants DataTables understands (note that these two options are deprecated in 1.10 and will be removed in 1.11 along side the separation of the jQueryUI option into its own theme file): DataTables will automatically synchronise these multiple controls. The built-in table control elements in DataTables are:Įach option can be specified multiple times (with the exception of the table itself), which can be used to have table controls both above and below the table. This parameter is used to control their ordering and additional mark-up surrounding them in the DOM.Įach table control element in DataTables has a single letter associated with it, and that letter it used in this dom configuration option to indicate where that element will appear in the document order. The position of these elements on screen are controlled by a combination of their order in the document (DOM) and the CSS applied to the elements. DescriptionĭataTables will add a number of elements around the table to both control the table and show additional information about it. Here is the post method that you used to check to make sure the user name was available: $.post('inc/peRegister.Define the table control elements to appear on the page and in what order.
Perhaps the best way to understand the low-level AJAX method is to compare it to one of the shorthand methods you used earlier. The ajax method is capable of accepting all of the options that can be used with jQuery's AJAX requests. It is the function that is wrapped by the shorthand methods and is at the very heart of all of jQuery's AJAX calls. The low-level interface that you will see in use most is the straight ajax method. One advantage of using the ajaxSetup method is that you can override any of the ajaxSetup options in the individual AJAX calls that you make. The only thing you need to supply to the post function is the data to be handled by ajaxProcessing.php. Make sure that the get request sends the cookie data to the server as a name=value pair:
#JQUERY INSERT P ELEMENT FOR EACH DB ITEM CODE#
Rather than storing the jQuery code in a different file and including it, let's use a slightly different technique that is very valuable when small jQuery scripts are used. Open chap4/4-2.php to set up a get function to retrieve the current user's pictures into the Web browser.jQuery provides a shorthand method call for making this kind of request to the server, and conveniently, it is called get. You can use GET as a form method or in AJAX.
Most Web developers follow the rule of using GET when only retrieving data and using POST when sending data to the server that will invoke a change on the server. Most forms utilize the POST method to request data from the server, but URLs are limited to the GET method. Each item is set up in a name=value pair, which can be easily parsed by scripting languages like jQuery and PHP. Unless Web-site developers are using methods to hide the strings, you may have seen something similar to this:Įverything past the question mark is a query string that can be used in a GET request to the server. If you have been developing Web sites even for the shortest period of time, you are likely aware of query strings in the URL. Getting Content Based on the Current User
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Let's look at some techniques for using jQuery's AJAX methods to update content. Some content updates may be based on the user information for the current user, other updates may be based on requests performed by any user, such as information based on a search performed by the Web-site visitor. In many cases, you'll want to use various jQuery AJAX functions to update visible Web-site content.
Learn More Buy Using AJAX to Update Content
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