Issue with Constraint in Textbox

asked 2011-05-18 03:08:02 +0800

rajivbandi
207

Hi Everyone,
This issue is a bit of legacy. But I cannot help upgrade the ZK version as the project is an old one.
ZK version : 3.0.3, 3.0.9, 3.6.4

Scenario :
When a Textbox has maxlength of 30 or more and has a constraint with regular expression,
an issue occurs after entering an input and moving out of textbox (on blur event).

If the input is acceptable according to the given constraint, then the page is fine.

But if the input is not acceptable ,
then after textbox looses focus , the page hangs with 'processing' icon hovering on the page. (CPU usage goes to nearly 100%!!!).

Please let me know if there is a solution to this or if it has been fixed in any of the versions released afterwards.

Tested this issue on all mentioned versions above.
But this works on ZK Demo for 5.0.7 online.
Not sure what's the difference.

The constraint given is all alphabets, space (both leading and trailing), single quote, hyphen as allowed in any order.

<?page id="pageTextboxConstraint" title="ZK Sandbox" contentType="text/html;charset=UTF-8"?>
<x:zk xmlns:x="http://www.zkoss.org/2005/zul"
    xmlns:zk="http://www.zkoss.org/2005/zk"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.zkoss.org/2005/zul http://www.zkoss.org/2005/zul/zul.xsd "
    xmlns:h="http://www.w3.org/1999/xhtml">

    <x:window >
        <x:textbox id="txtbxTest" constraint="/([a-zA-Z'-]*[ ]*)*/:invalid input" />
    </x:window>
    
</x:zk>