Directive

Each XML processing instruction specifies how to process the XML document. It is called directives in ZK. For example, the following directive specifies the page title and style.

<?page title="Grey background" style="background: grey"?>

Notice that there should be no whitespace between the question mark and the processing instruction’s name (i.e., page in the above example).

You can also use EL in instructions like:

<?page automaticTimeout="true" title="${personalTitle}"?>
<?component name="loc-datebox" extends="datebox" locale="${somelocale}"?>

Limitation: Ignored by Inclusion

Notice that these directives are effective only when you visit a zul page directly. In other words, they are ignored if a page is included by another page with <include>, <apply>, composition, or servlets API. Also, they are ignored if the page is a zhtml file.