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How to Disable Mandatory Constraint for email textbox

asked 2014-04-02 19:14:54 +0800

sathishk gravatar image sathishk
17 5

updated 2014-04-03 05:48:43 +0800

chillworld gravatar image chillworld flag of Belgium
5337 4 9
https://github.com/chillw...

Hi sir,

The Below given Constrain for email, If i Enter empty string it's shows validation popup,in this case i need to disable popup of email constrain and remove mandatory field,How to do? Validation work only when i enter any String only,but here two ways display popup.

Please give me suggestions.I am new in ZK.

<label class="bold">Email</label>
<textbox id="emailid" 
    constraint="/\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/: Please enter an e-mail address">
</textbox>
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answered 2014-04-03 05:48:27 +0800

chillworld gravatar image chillworld flag of Belgium
5337 4 9
https://github.com/chillw...

First of all, regex is widly used, not only zk.

Now for your problem :

constraint="/^$|\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/: Please enter an e-mail address"

where ^$ stand for empty string and | for OR.

Greetz chill.

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Asked: 2014-04-02 19:14:54 +0800

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Last updated: Apr 03 '14

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