[RESOLVED] multiple text box validation

@raj_2006Oct 27.2006

Hi all

I have multiple text box and i want to validate it all through a single for loop and a if loop.

say :

[QUOTE] <script=”javascript”> for(i=1;i<=3;i++) { if(document.f.at[i].value.length==””) { alert(“Please fillup the A, T..Vid /+S/ DVD /GP”); return false; } } </script>[/QUOTE]

but in this way it is not validating

Can yopu plz suggest me what should i do now?

Thanks in advance…………Raj

to post a comment

JavaScript

@RobDavidOct 27.2006 — #try using this

if(document.forms['f']['at' + i].value.length=="")

@KorOct 27.2006 — #you need a [B]function[/B],an [B]event[/B] to call that function, and a correct way to find the elements you are to apply the [B]methods[/B]. You need to define the type of your script. You need a lot of things, a Doctype, for instance...

A basic example could be based on [B]onsubmit[/B] event applied to the [B]form[/B] element, that means user will be alerted about the empty textbox the moment he will try to submit data to the server. And you must call for a returned Boolean value true/false on this attempt.

<i>
 </i>&lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"  "http://www.w3.org/TR/html4/loose.dtd"&gt;
 &lt;html&gt;
 &lt;head&gt;
 &lt;title&gt;Untitled Document&lt;/title&gt;
 &lt;meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"&gt;
 &lt;meta http-equiv="Content-Style-Type" content="text/css"&gt;
 &lt;meta http-equiv="Content-Script-Type" content="txt/javascript"&gt;
 &lt;script type="text/javascript"&gt;
 function valid(){
 var i=1;
 while(t=document.getElementsByName('at'+i++)[0]){
 if(t.value==''){
 alert('please fill the fields');
 t.focus();
 return false
 }
 }
 }
 &lt;/script&gt;
 &lt;/head&gt;
 &lt;body&gt;
 &lt;form onsubmit="return valid()"&gt;
 &lt;input name="at1" type="text" class="style7" maxlength="10"&gt;
 &lt;input name="at2" type="text" class="style7" maxlength="10"&gt;
 &lt;input name="at3" type="text" class="style7" maxlength="10"&gt;
 &lt;br&gt;
 &lt;br&gt;
 &lt;input type="submit" value="Submit"&gt;
 &lt;/form&gt;
 &lt;/body&gt;
 &lt;/html&gt;

@raj_2006authorOct 27.2006 — #hi

GREAT...its working

Thanks a lot mate.

luv

raj

@raj_2006authorOct 27.2006 — #i used this one

if(document.forms['f']['at' + i].value.length=="")

also thanks a lot for another suggestion.

Cheers

Raj

@KorOct 27.2006 — #I insist, for your good, to use the standard notation/coding, otherwise some browsers (and not a few) in this world will bring u errors. For instance:

<script [COLOR=Red]type="text/javascript"[/COLOR]>

@raj_2006authorOct 27.2006 — #hi Kor

thanks for your posting too.....I understand to do universal standard coding i need to take care of the browsers compatibility.

Thanks for making me aware again.....Luv.....Raj

[RESOLVED] multiple text box validation

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