Edit D:\app\Administrator\product\11.2.0\dbhome_1\apex\images\doc\bldapp_chrt_async.htm
<!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>Enabling Asynchronous Updates</title> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1" /> <meta name="date" content="2009-04-14T16:11:29Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Enabling Asynchronous Updates" /> <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="app_comp.htm" title="Adding Application Components" type="text/html" /> <link rel="up" href="bldapp_chrt.htm" title="Creating Charts" type="text/html" /> <link rel="up" href="bldapp_chrt_async.htm" title="Enabling Asynchronous Updates" type="text/html" /> <link rel="prev" href="bldapp_chrt_xml.htm" title="Previous" type="text/html" /> <link rel="next" href="bldapp_chrt_lang.htm" title="Next" type="text/html" /> </head> <body> <p id="BREADCRUMBING"><a href="preface.htm" title="Home">Home</a> > <a href="app_comp.htm" title="Adding Application Components">Adding Application Components</a> > <a href="bldapp_chrt.htm" title="Creating Charts">Creating Charts</a> > Enabling Asynchronous Updates</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="bldapp_chrt_xml.htm"><img src="dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="bldapp_chrt_lang.htm"><img src="dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="CEGDDABC" name="CEGDDABC"></a></p> <div class="sect2"><!-- infolevel="all" infotype="General" --> <h1><a name="HTMDB05008|asynchronous updates,charts that monitor information"></a>Enabling Asynchronous Updates</h1> <p>You <a id="sthref1176" name="sthref1176"></a><a id="sthref1177" name="sthref1177"></a>can create SVG and Flash charts that monitor information by enabling the Asynchronous Update attribute on the Chart attributes page. Enabling this attribute updates the chart to reflect changes in the underlying data within a specified time interval.</p> <p>To enable asynchronous updates:</p> <ol> <li> <p>Create an SVG or Flash chart. See <a href="bldapp_chrt_svg.htm#BABHAHCH">"Creating a SVG Chart"</a> or <a href="bldapp_chrt_flash.htm#BABBECCA">"Creating a Flash Chart"</a>.</p> </li> <li> <p>Navigate to the Page Definition. See <a href="bldr_goto_pgdef.htm#CJGHCACC">"Accessing a Page Definition"</a>.</p> </li> <li> <p>Under Regions, click <span class="bold">Chart</span> next to the region name.</p> <p>The Chart Attributes page appears.</p> </li> <li> <p>Scroll down to Refresh.</p> </li> <li> <p>From Asynchronous Update, select <span class="bold">Yes</span>.</p> </li> <li> <p>In Update Interval (Seconds), enter the interval in seconds between chart updates. For optimal performance, select an interval that is greater than 2 seconds.</p> </li> </ol> <p>When Asynchronous Update is enabled for an SVG chart, a timestamp displays on the chart indicating the last update.</p> <p>To disable the Asynchronous Update timestamp:</p> <ol> <li> <p>Navigate to the Chart Attributes page.</p> </li> <li> <p>Locate the CSS section.</p> </li> <li> <p>From Use Custom CSS, select <span class="bold">Yes</span>.</p> </li> <li> <p>In Custom CSS, Inline edit <code>#timestamp</code> as follows:</p> <pre xml:space="preserve" class="oac_no_warn"> #timestamp{display:none;} </pre></li> </ol> </div> <!-- class="sect2" --> <!-- 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. 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