<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="pl"> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <meta name="robots" content="all" /> <title>opt:if - Open Power Template</title> <link rel="stylesheet" type="text/css" href="design/generic.css" media="all" /> <link rel="stylesheet" type="text/css" href="design/print.css" media="print" /> <!--[if lte IE 6]><link rel="stylesheet" href="design/ie.css" type="text/css" /><![endif]--> <!--[if IE 7]><link rel="stylesheet" href="design/ie7.css" type="text/css" /><![endif]--> </head> <body> <div id="wrap"> <div id="header"> <h1>Open Power Template 2.0</h1> <h2>opt:if</h2> <p class="generated">@ 02.09.2010</p> <p class="location"><a href="index.html"><strong>User manual</strong></a> » <a href="syntax.html">Template syntax</a> » <a href="syntax.attributes.html">OPT attributes</a> » <a href="syntax.attributes.if.html">opt:if</a></p> </div> <div id="content"><dl class="location"><dt><a href="syntax.attributes.html">3.8. OPT attributes</a><br/>3.8.6. opt:if</dt><dd class="prev">3.8.5. opt:dynamic<br/><a href="syntax.attributes.dynamic.html">« Previous</a></dd><dd class="next">3.8.7. opt:on<br/><a href="syntax.attributes.on.html">Next »</a></dd></dl> <h1>3.8.6. opt:if</h1><p>This attribute allows to display the tag conditionally:</p> <pre class="xml"><span style="color: #009900;"><span style="color: #000000; font-weight: bold;"><p</span> <span style="color: #000066;">opt:if</span>=<span style="color: #ff0000;">"$showParagraph == true"</span><span style="color: #000000; font-weight: bold;">></span></span>This paragraph is displayed only if the condition is true.<span style="color: #009900;"><span style="color: #000000; font-weight: bold;"></p<span style="color: #000000; font-weight: bold;">></span></span></span></pre> <p>The code above is equivalent of:</p> <pre class="xml"><span style="color: #009900;"><span style="color: #000000; font-weight: bold;"><opt:if</span> <span style="color: #000066;">test</span>=<span style="color: #ff0000;">"$showParagraph == true"</span><span style="color: #000000; font-weight: bold;">></span></span> <span style="color: #009900;"><span style="color: #000000; font-weight: bold;"><p<span style="color: #000000; font-weight: bold;">></span></span></span>This paragraph is displayed only if the condition is true.<span style="color: #009900;"><span style="color: #000000; font-weight: bold;"></p<span style="color: #000000; font-weight: bold;">></span></span></span> <span style="color: #009900;"><span style="color: #000000; font-weight: bold;"></opt:if<span style="color: #000000; font-weight: bold;">></span></span></span></pre> <blockquote class="stop"> <p>Within <code>opt:if</code> attribute the <code>opt:elseif</code> and <code>opt:else</code> tags do not work.</p> </blockquote> <h4>See also:</h4><ul><li><a href="syntax.instructions.if.html">3.7.11. opt:if</a></li></ul><dl class="location location-bottom"><dt>3.8.6. opt:if<br/><a href="syntax.attributes.html">3.8. OPT attributes</a></dt><dd class="prev"><a href="syntax.attributes.dynamic.html">« Previous</a><br/>3.8.5. opt:dynamic</dd><dd class="next"><a href="syntax.attributes.on.html">Next »</a><br/>3.8.7. opt:on</dd></dl> </div> <div id="footer"> <p>Copyright © <a href="http://www.invenzzia.org/">Invenzzia Group 2008-2009</a></p> <p>Available under the terms of license: <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License 1.2</a></p> <p>Generated by <strong>TypeFriendly 0.1.4</strong> by <a href="http://www.invenzzia.org/">Invenzzia</a></p> </div> </div> </body> </html>