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How to check for textfields duplicates ?

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Oct 03.2007

Hi,

I am displaying data dynamically from a database the user has to put numbers in the textfields from 1 to N (it’s like a survey or vote) :

textfield1 — caseId — title
textfield2 — caseId — title
textfield3 — caseId — title
……

textfieldN — caseId — title

I want to validate :
1)a number can not duplicated, for example the user cannot input :
textfield1 = 2
textfield2 = 2

I need a javascript that prevent the user from entering duplicated numbers.

thanks your help is appreciated.

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JavaScript

2 Comments(s) ↴

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@vwphillipsOct 03.2007 — [CODE]<!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>
<title></title>
<script language="JavaScript" type="text/javascript">
/*<![CDATA[*/

function zxcNoDuplicates(zxcfrm,zxcclass){
zxcfrm=document[zxcfrm];
zxcfrm[zxcclass]=[];
var zxceles=zxcfrm.elements;
for (var zxc0=0;zxc0<zxceles.length;zxc0++){
if (zxceles[zxc0].className&&zxceles[zxc0].className.match(zxcclass)){
zxcfrm[zxcclass].push(zxceles[zxc0]);
zxceles[zxc0].ary=zxcfrm[zxcclass];
zxceles[zxc0].onkeyup=function(){ this.value=this.value.replace(/D/g,''); }
zxceles[zxc0].onblur=function(){ zxcCkDuplicates(this); }
}
}
}

function zxcCkDuplicates(zxcobj){
for (var zxc0=0;zxc0<zxcobj.ary.length;zxc0++){
if (zxcobj.ary[zxc0]!=zxcobj&&zxcobj.ary[zxc0].value.length>0&&zxcobj.ary[zxc0].value==zxcobj.value){
alert('No Duplicates Allowed');
zxcobj.focus();
return false;
}
}
return true
}



/*]]>*/
</script></head>

<body onload="zxcNoDuplicates('tst','noduplicates1');zxcNoDuplicates('tst','noduplicates2');">
<form name="tst" >
group 1<br />
<input class="realclass noduplicates1" type="text" />
<input class="realclass noduplicates1" type="text" />
<input class="realclass noduplicates1" type="text" />
<input class="realclass noduplicates1" type="text" />
<input class="realclass noduplicates1" type="text" />
<br />
Group 2
<br />
<input class="realclass noduplicates2" type="text" />
<input class="realclass noduplicates2" type="text" />
<input class="realclass noduplicates2" type="text" />

</form>
</body>

</html>[/CODE]
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@mlotfiauthorOct 03.2007 — Thank you very much, I appreciate your help.

thanks lot.
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