for loop for unknown number of fields to validate

[Abby Lee]

I must confirm the user enters a value for each fund they need. I do not know
how many fund entries there will be...it's expandable to handle each users
needs. I must varify each fund they enter is six digits long. I have no
problems with the Is_In_Format function (I found it on the web and am using
it for other things).

My problem is with my validate function which I've cut down (oh it doesn't
work but you can see the direction I am going with it). Is there a better way
to validate this? If not what am I doing wrong?


function validate() {
for(i=1;i<=nrow ;i++) {
If (eval("!Is_In_F ormat( document.forms[0].fund_" + i + ".value, "dddddd")
|| document.forms[0].fund_" + i + ".value.len gth != 6")){
alert("Fund must be 6 digits");
eval("document. forms[0].fund_" + i + ".focus();" )
}
}

[Mick White]

Re: for loop for unknown number of fields to validate

Abby Lee wrote:
[color=blue]
> I must confirm the user enters a value for each fund they need. I do not know
> how many fund entries there will be...it's expandable to handle each users
> needs. I must varify each fund they enter is six digits long. I have no
> problems with the Is_In_Format function (I found it on the web and am using
> it for other things).
>
> My problem is with my validate function which I've cut down (oh it doesn't
> work but you can see the direction I am going with it). Is there a better way
> to validate this? If not what am I doing wrong?
>
>
> function validate() {
> for(i=1;i<=nrow ;i++) {
> If (eval("!Is_In_F ormat( document.forms[0].fund_" + i + ".value, "dddddd")
> || document.forms[0].fund_" + i + ".value.len gth != 6")){
> alert("Fund must be 6 digits");
> eval("document. forms[0].fund_" + i + ".focus();" )
> }
> }[/color]
function validate(){
f-document.forms[0];
for(i=1;i<=nrow ;i++) {
if(f["fund"+i].value){
if(!/^\d{6}$/.test(f["fund"+i].value){
alert("Fund must be 6 digits");
f["fund_" + i].focus();
return false;
}
}
}
return true;
}

I am assuming empty fields are OK.
Mick

[Abby Lee]

Re: for loop for unknown number of fields to validate

Mick White <mwhite13@roche ster.rr.com> writes:
[color=blue]
> Abby Lee wrote:
>[color=green]
> > I must confirm the user enters a value for each fund they need. I do not
> > know
> > how many fund entries there will be...it's expandable to handle each
> > users
> > needs. I must varify each fund they enter is six digits long. I have no
> > problems with the Is_In_Format function (I found it on the web and am
> > using
> > it for other things).
> >
> > My problem is with my validate function which I've cut down (oh it
> > doesn't
> > work but you can see the direction I am going with it). Is there a better
> > way
> > to validate this? If not what am I doing wrong?
> >
> >
> > function validate() {
> > for(i=1;i<=nrow ;i++) {
> > If (eval("!Is_In_F ormat( document.forms[0].fund_" + i + ".value,
> > "dddddd")
> > || document.forms[0].fund_" + i + ".value.len gth != 6")){
> > alert("Fund must be 6 digits");
> > eval("document. forms[0].fund_" + i + ".focus();" )
> > }
> > }[/color]
> function validate(){
> f-document.forms[0];
> for(i=1;i<=nrow ;i++) {
> if(f["fund"+i].value){
> if(!/^\d{6}$/.test(f["fund"+i].value){
> alert("Fund must be 6 digits");
> f["fund_" + i].focus();
> return false;
> }
> }
> }
> return true;
> }
>
> I am assuming empty fields are OK.
> Mick[/color]

Mick,
Can you explain what you are doing here...I could not get it to work, even
after changing it to check just the one "fund" field they must use.

function validate(){
if(!/^\d{6}$/.test(document. forms[0].fund_1.value){
alert("Fund must be 6 digits");
document.forms[0].fund_1.focus() ;
}
else document.forms[0].submit();
}

[Abby Lee]

Re: for loop for unknown number of fields to validate

Abby Lee <abbylee26@hotm ail.com> writes:
[color=blue]
> Mick White <mwhite13@roche ster.rr.com> writes:
>[color=green]
> > Abby Lee wrote:
> >[color=darkred]
> > > I must confirm the user enters a value for each fund they need. I do
> > > not
> > > know
> > > how many fund entries there will be...it's expandable to handle each
> > > users
> > > needs. I must varify each fund they enter is six digits long. I have no
> > >
> > > problems with the Is_In_Format function (I found it on the web and am
> > > using
> > > it for other things).
> > >
> > > My problem is with my validate function which I've cut down (oh it
> > > doesn't
> > > work but you can see the direction I am going with it). Is there a
> > > better
> > > way
> > > to validate this? If not what am I doing wrong?
> > >
> > >
> > > function validate() {
> > > for(i=1;i<=nrow ;i++) {
> > > If (eval("!Is_In_F ormat( document.forms[0].fund_" + i + ".value,
> > > "dddddd")
> > > || document.forms[0].fund_" + i + ".value.len gth != 6")){
> > > alert("Fund must be 6 digits");
> > > eval("document. forms[0].fund_" + i + ".focus();" )
> > > }
> > > }[/color]
> > function validate(){
> > f-document.forms[0];
> > for(i=1;i<=nrow ;i++) {
> > if(f["fund"+i].value){
> > if(!/^\d{6}$/.test(f["fund"+i].value){
> > alert("Fund must be 6 digits");
> > f["fund_" + i].focus();
> > return false;
> > }
> > }
> > }
> > return true;
> > }
> >
> > I am assuming empty fields are OK.
> > Mick[/color]
>
> Mick,
> Can you explain what you are doing here...I could not get it to work, even
> after changing it to check just the one "fund" field they must use.
>
> function validate(){
> if(!/^\d{6}$/.test(document. forms[0].fund_1.value){
> alert("Fund must be 6 digits");
> document.forms[0].fund_1.focus() ;
> }
> else document.forms[0].submit();
> }[/color]


Nevermind and thank you Mick, I got it working ;)

[Dr John Stockton]

Re: for loop for unknown number of fields to validate

JRS: In article <uiucguest.2004 0426155829$7cde @news.ks.uiuc.e du>, seen
in news:comp.lang. javascript, Abby Lee <abbylee26@hotm ail.com> posted at
Mon, 26 Apr 2004 11:08:04 :[color=blue]
>I must confirm the user enters a value for each fund they need. I do not know
>how many fund entries there will be...it's expandable to handle each users
>needs. I must varify each fund they enter is six digits long. I have no
>problems with the Is_In_Format function (I found it on the web and am using
>it for other things).
>
>My problem is with my validate function which I've cut down (oh it doesn't
>work but you can see the direction I am going with it). Is there a better way
>to validate this? If not what am I doing wrong?
>
>
>function validate() {
> for(i=1;i<=nrow ;i++) {
> If (eval("!Is_In_F ormat( document.forms[0].fund_" + i + ".value, "dddddd")
>|| document.forms[0].fund_" + i + ".value.len gth != 6")){
> alert("Fund must be 6 digits");
> eval("document. forms[0].fund_" + i + ".focus();" )
> }
> }[/color]

Rather than using some dubious function from the Web, why not test
directly with a RegExp /$\d{6}$/ ?

<URL:http://www.merlyn.demo n.co.uk/js-valid.htm#VFF> has a general
method, shown in ...#TC, using an Array in an Object to define all the
tests on a form; it should be possible to replace the scanning of the
array with scanning what I suppose to be an array of elements.

You want something like

function validate() { var F, OK
for(i=0;i<nrow; i++) { F = document.forms[0].element[i] // or similar
OK = /$\d{6}$/.test(F.value) // 6 digits only
if (!OK) { alert("Fund " + i + " must be 6 digits") ; F.focus() ;
return false } }
return true }

FAQ 4.40, 4.39, of course.

--
© John Stockton, Surrey, UK. ?@merlyn.demon. co.uk Turnpike v4.00 IE 4 ©
<URL:http://jibbering.com/faq/> Jim Ley's FAQ for news:comp.lang. javascript
<URL:http://www.merlyn.demo n.co.uk/js-index.htm> jscr maths, dates, sources.
<URL:http://www.merlyn.demo n.co.uk/> TP/BP/Delphi/jscr/&c, FAQ items, links.

[Mick White]

Re: for loop for unknown number of fields to validate

Dr John Stockton wrote:

<snip>[color=blue]
>
> function validate() { var F, OK
> for(i=0;i<nrow; i++) { F = document.forms[0].element[i] // or similar
> OK = /$\d{6}$/.test(F.value) // 6 digits only
> if (!OK) { alert("Fund " + i + " must be 6 digits") ; F.focus() ;
> return false } }
> return true }
>
> FAQ 4.40, 4.39, of course.
>[/color]
OP states that empty fields are OK. But if there is an entry, it should
be 6 digits.
See my earlier posting.
Mick

[Dr John Stockton]

Re: for loop for unknown number of fields to validate

JRS: In article <zVgjc.120979$e 17.17168@twiste r.nyroc.rr.com> , seen in
news:comp.lang. javascript, Mick White <mwhite13@roche ster.rr.com> posted
at Mon, 26 Apr 2004 23:27:27 :[color=blue]
>Dr John Stockton wrote:
>
><snip>[color=green]
>>
>> function validate() { var F, OK
>> for(i=0;i<nrow; i++) { F = document.forms[0].element[i] // or similar
>> OK = /$\d{6}$/.test(F.value) // 6 digits only
>> if (!OK) { alert("Fund " + i + " must be 6 digits") ; F.focus() ;
>> return false } }
>> return true }
>>
>> FAQ 4.40, 4.39, of course.
>>[/color]
>OP states that empty fields are OK. But if there is an entry, it should
>be 6 digits.[/color]

(a) The first $ above should be ^
(b) OK = /^$|^\d{6}$/.test( ) // seems OK; empty or 6-digit

--
© John Stockton, Surrey, UK. ?@merlyn.demon. co.uk Turnpike v4.00 IE 4 ©
<URL:http://jibbering.com/faq/> Jim Ley's FAQ for news:comp.lang. javascript
<URL:http://www.merlyn.demo n.co.uk/js-index.htm> jscr maths, dates, sources.
<URL:http://www.merlyn.demo n.co.uk/> TP/BP/Delphi/jscr/&c, FAQ items, links.