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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <title>Understanding Page Layout in Oracle Application Express</title> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1" /> <meta name="date" content="2009-04-14T16:11:30Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Understanding Page Layout in Oracle Application Express" /> <meta name="relnum" content="Release 3.2" /> <meta name="partnum" content="E11947-01" /> <link rel="copyright" href="dcommon/html/cpyr.htm" title="Copyright" type="text/html" /> <link rel="stylesheet" href="dcommon/css/blafdoc.css" title="Oracle BLAFDoc" type="text/css" /> <link rel="contents" href="toc.htm" title="Contents" type="text/html" /> <link rel="up" href="preface.htm" title="Home" type="text/html" /> <link rel="up" href="ui.htm" title="Controlling Page Layout" type="text/html" /> <link rel="up" href="ui_about.htm" title="Understanding Page Layout i..." type="text/html" /> <link rel="prev" href="ui.htm" title="Previous" type="text/html" /> <link rel="next" href="ui_allpgs.htm" title="Next" type="text/html" /> </head> <body> <p id="BREADCRUMBING"><a href="preface.htm" title="Home">Home</a> > <a href="ui.htm" title="Controlling Page Layout">Controlling Page Layout</a> > Understanding Page Layout i...</p> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr valign="bottom"> <td align="left"></td> <td align="center"><a href="ui.htm"><img src="dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="ui_allpgs.htm"><img src="dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="BABFJJAB" name="BABFJJAB"></a></p> <div class="sect1"><!-- infolevel="all" infotype="General" --> <h1><a name="HTMDB06001|page layout"></a>Understanding Page <a id="sthref1441" name="sthref1441"></a>Layout in Oracle Application Express</h1> <p>The Application Express engine renders pages by combining templates with application components defined by the developer and data in the database.</p> <p>The overall framework (or structure of a page) is determined by the page template. For example, the page template controls if a page uses tabs and a navigation bar. It can also define if a page includes a bar on the left side that serves as a placeholder for navigation or secondary content. Finally, a page template can include definitions of region positions, which enable precise control over placement of regions using HTML tables or style sheet definitions. The page template itself is composed of HTML combined with substitution strings, which are substituted with the appropriate components at run time.</p> <p>As a developer, you add content to a page by creating a region. A <span class="bold">region</span> is an area of a page that serves as a container for content. Each region contains a different type of content such as HTML, a report, a form, a chart, a list, a breadcumb, PL/SQL, a tree, a URL, or a calendar. You position a region either relative to other regions (that is, based on its sequence number and column), or by using a region position defined in the page template. The style of the region is also controlled by the region template. Like the page template, the region template defines the structure of the area that the region takes up on a page. It defines if the region title i<a id="sthref1442" name="sthref1442"></a><a id="sthref1443" name="sthref1443"></a>s displayed and where it is displayed relative to the main content or the body. A region can also define absolute positions for buttons.</p> <div align="center"> <div class="inftblnotealso"><br /> <table class="NoteAlso oac_no_warn" summary="" cellpadding="3" cellspacing="0"> <tbody> <tr> <td align="left"> <p class="notep1">See Also:</p> <a href="ui_region_create.htm#BABGAFDB">"Creating a Region"</a></td> </tr> </tbody> </table> <br /></div> <!-- class="inftblnotealso" --></div> </div> <!-- class="sect1" --> <!-- Start Footer --> <div class="footer"> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr> <td align="left"><span class="copyrightlogo">Copyright © 2003, 2009, Oracle and/or its affiliates. All rights reserved.</span><br /> <a href="dcommon/html/cpyr.htm"><span class="copyrightlogo">Legal Notices</span></a></td> <td align="center"><a href="ui.htm"><img src="dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="ui_allpgs.htm"><img src="dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> </div> <!-- class="footer" --> </body> </html>
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