Reset a File Input

**Joakim Braun** · Jul 23 '05, 01:29 PM

Re: Reset a File Input

"YoBro" <yobro@wazzup.c o.nz> skrev i meddelandet
news:nIp%c.2302 2$N77.1053430@n ews.xtra.co.nz. ..[color=blue]
> Hi,
>
> Is this possible, if so how would you go about it.
>
> I have a reasonably large form that includes 6 file input fields.
> I wanted to create an option to allow the user to reset only the file[/color]
input[color=blue]
> fields. Currently if they select an image to upload and realise it is the
> wrong one there is no way of resetting it. Except of course, manually
> deleting the text out of the field.
>
> Because you cannot reference and change the value of a file input, I[/color]
cannot[color=blue]
> set the value to "".
>
> Is there any other way to add a rest button but specify the fields that[/color]
you[color=blue]
> want to reset. I do not want to rest the entire form.
>
> Many thanks.
>
> YoBro[/color]

I hope someone has a brighter idea than this: Save all form element values
except the file inputs, reset the form, then set all form element values
except the file inputs back to the corresponding saved values.

Joakim Braun

**PDannyD** · Jul 23 '05, 01:29 PM

Re: Reset a File Input

"YoBro" <yobro@wazzup.c o.nz> wrote in message
news:nIp%c.2302 2$N77.1053430@n ews.xtra.co.nz[color=blue]
> Hi,
>
> Is this possible, if so how would you go about it.
>
> I have a reasonably large form that includes 6 file input fields.
> I wanted to create an option to allow the user to reset only the file
> input fields. Currently if they select an image to upload and realise
> it is the wrong one there is no way of resetting it. Except of
> course, manually deleting the text out of the field.
>
> Because you cannot reference and change the value of a file input, I
> cannot set the value to "".
>
> Is there any other way to add a rest button but specify the fields
> that you want to reset. I do not want to rest the entire form.[/color]

Use two forms?

**Ian Sedwell** · Jul 23 '05, 01:29 PM

Re: Reset a File Input

On 2004/09/07 22:57, in article chlat1$eak$1@ne ws6.svr.pol.co. uk, "PDannyD"
<dan1970@REMOVE THISBITscenicpl ace.freeserve.c o.uk> wrote:
[color=blue]
> "YoBro" <yobro@wazzup.c o.nz> wrote in message
> news:nIp%c.2302 2$N77.1053430@n ews.xtra.co.nz[color=green]
>> Hi,
>>
>> Is this possible, if so how would you go about it.
>>
>> I have a reasonably large form that includes 6 file input fields.
>> I wanted to create an option to allow the user to reset only the file
>> input fields. Currently if they select an image to upload and realise
>> it is the wrong one there is no way of resetting it. Except of
>> course, manually deleting the text out of the field.
>>
>> Because you cannot reference and change the value of a file input, I
>> cannot set the value to "".
>>
>> Is there any other way to add a rest button but specify the fields
>> that you want to reset. I do not want to rest the entire form.[/color]
>
> Use two forms?
>
>[/color]

I didn't know you couldn't mess with the value of a file input field. Never
had to try! But it makes sense that that is so from a security point of
view. Ah well, live and learn, eh.

I think what I'd do, is save the field values I wanted to keep into cookies
or global variables, reset the form and then restore the retained values to
their original fields from their temporary containers.

Maybe there's a more elegant way.

Cheers

Ian

**YoBro** · Jul 23 '05, 01:29 PM

Re: Reset a File Input

Hmmm,

It is a really complicated form already, and massive, but quite a bit of
DHTML for different aspects of it. It is used specifically in Internet
Explorer, and is part of a companies Intranet. So I don't need anything
cross browser compatible, but I was hoping for an easy fix.

I thought about the cookie, idea but it is alot of work. I might have to
head down that road. It is a shame the reset button cannot have specified
values. This way you could click reset and specify which fields you want to
reset.

Thanks for the feedback!

"Ian Sedwell" <ian.sedwell@bt click.com> wrote in message
news:BD63F4C5.C F1B%ian.sedwell @btclick.com...[color=blue]
> On 2004/09/07 22:57, in article chlat1$eak$1@ne ws6.svr.pol.co. uk,
> "PDannyD"
> <dan1970@REMOVE THISBITscenicpl ace.freeserve.c o.uk> wrote:
>[color=green]
>> "YoBro" <yobro@wazzup.c o.nz> wrote in message
>> news:nIp%c.2302 2$N77.1053430@n ews.xtra.co.nz[color=darkred]
>>> Hi,
>>>
>>> Is this possible, if so how would you go about it.
>>>
>>> I have a reasonably large form that includes 6 file input fields.
>>> I wanted to create an option to allow the user to reset only the file
>>> input fields. Currently if they select an image to upload and realise
>>> it is the wrong one there is no way of resetting it. Except of
>>> course, manually deleting the text out of the field.
>>>
>>> Because you cannot reference and change the value of a file input, I
>>> cannot set the value to "".
>>>
>>> Is there any other way to add a rest button but specify the fields
>>> that you want to reset. I do not want to rest the entire form.[/color]
>>
>> Use two forms?
>>
>>[/color]
>
>
> I didn't know you couldn't mess with the value of a file input field.
> Never
> had to try! But it makes sense that that is so from a security point of
> view. Ah well, live and learn, eh.
>
> I think what I'd do, is save the field values I wanted to keep into
> cookies
> or global variables, reset the form and then restore the retained values
> to
> their original fields from their temporary containers.
>
> Maybe there's a more elegant way.
>
> Cheers
>
> Ian
>[/color]

**J. J. Cale** · Jul 23 '05, 01:30 PM

Re: Reset a File Input

"YoBro" <yobro@wazzup.c o.nz> wrote in message
news:nIp%c.2302 2$N77.1053430@n ews.xtra.co.nz. ..[color=blue]
> Hi,
>
> Is this possible, if so how would you go about it.
>
> I have a reasonably large form that includes 6 file input fields.
> I wanted to create an option to allow the user to reset only the file[/color]
input[color=blue]
> fields. Currently if they select an image to upload and realise it is the
> wrong one there is no way of resetting it. Except of course, manually
> deleting the text out of the field.
>
> Because you cannot reference and change the value of a file input, I[/color]
cannot[color=blue]
> set the value to "".
>[/color]
document.forms['yourFormName'].yourFileInputN ame.value="";[color=blue]
> Is there any other way to add a rest button but specify the fields that[/color]
you[color=blue]
> want to reset. I do not want to rest the entire form.
>[/color]
<form name='yourFormN ame' onsubmit='yourF unction()>
<input type="file" name="yourFileI nputName">
</form>
<script type=text/javascript>
function yourFunction() {
// validate what you want here;
// change form field value as necessary (see above comment)
if(!confirm("Ok to submit or whatever") return;
}
</script>
Jimbo[color=blue]
> Many thanks.
>
> YoBro
>
>[/color]

**G Roydor** · Jul 23 '05, 01:30 PM

Re: Reset a File Input

YoBro a écrit:[color=blue]
> Hi,
>
> Is this possible, if so how would you go about it.
>
> I have a reasonably large form that includes 6 file input fields.
> I wanted to create an option to allow the user to reset only the file input
> fields. Currently if they select an image to upload and realise it is the
> wrong one there is no way of resetting it. Except of course, manually
> deleting the text out of the field.[/color]

essayez avec 6 forms plus une qui récapitule
et soumettez par la methode submit après avoir collationné les fichiers
valides

test with 6 forms more one which recapitulates and submit by the method
..submit() after having collated the valid files

GR
[color=blue]
>
> Because you cannot reference and change the value of a file input, I cannot
> set the value to "".
>
> Is there any other way to add a rest button but specify the fields that you
> want to reset. I do not want to rest the entire form.
>
> Many thanks.
>
> YoBro
>
>[/color]

**Philip Ronan** · Jul 23 '05, 01:30 PM

Re: Reset a File Input

On 8/9/04 1:58 am, YoBro wrote:
[color=blue]
> Hmmm,
>
> It is a really complicated form already, and massive, but quite a bit of
> DHTML for different aspects of it. It is used specifically in Internet
> Explorer, and is part of a companies Intranet. So I don't need anything
> cross browser compatible, but I was hoping for an easy fix.[/color]

Associate each file input field with a checkbox that toggles the field's
'disabled' flag. (Disabled fields are always unsuccessful, so their contents
should be ignored.)

--
Philip Ronan
phil.ronanzzz@v irgin.net
(Please remove the "z"s if replying by email)

**YoBro** · Jul 23 '05, 01:31 PM

Re: Reset a File Input

Hi,

You cannot change a file input field with JavaScript (for security reasons).
So this method won't work.

YoBro

"J. J. Cale" <photom@netvisi on.net.il> wrote in message
news:413e9cb9$1 @news.012.net.i l...[color=blue]
>
> "YoBro" <yobro@wazzup.c o.nz> wrote in message
> news:nIp%c.2302 2$N77.1053430@n ews.xtra.co.nz. ..[color=green]
>> Hi,
>>
>> Is this possible, if so how would you go about it.
>>
>> I have a reasonably large form that includes 6 file input fields.
>> I wanted to create an option to allow the user to reset only the file[/color]
> input[color=green]
>> fields. Currently if they select an image to upload and realise it is the
>> wrong one there is no way of resetting it. Except of course, manually
>> deleting the text out of the field.
>>
>> Because you cannot reference and change the value of a file input, I[/color]
> cannot[color=green]
>> set the value to "".
>>[/color]
> document.forms['yourFormName'].yourFileInputN ame.value="";[color=green]
>> Is there any other way to add a rest button but specify the fields that[/color]
> you[color=green]
>> want to reset. I do not want to rest the entire form.
>>[/color]
> <form name='yourFormN ame' onsubmit='yourF unction()>
> <input type="file" name="yourFileI nputName">
> </form>
> <script type=text/javascript>
> function yourFunction() {
> // validate what you want here;
> // change form field value as necessary (see above comment)
> if(!confirm("Ok to submit or whatever") return;
> }
> </script>
> Jimbo[color=green]
>> Many thanks.
>>
>> YoBro
>>
>>[/color]
>
>[/color]

**YoBro** · Jul 23 '05, 01:31 PM

Re: Reset a File Input

Hi,

This was going to be my option, and have sort of implemented it, if they
re-use an image already on the server. It disables the file input so they
cannot upload an image as well as re-use an image.

YoBro

"Philip Ronan" <phil.ronanzzz@ virgin.net> wrote in message
news:BD649160.2 0CC8%phil.ronan zzz@virgin.net. ..[color=blue]
> On 8/9/04 1:58 am, YoBro wrote:
>[color=green]
>> Hmmm,
>>
>> It is a really complicated form already, and massive, but quite a bit of
>> DHTML for different aspects of it. It is used specifically in Internet
>> Explorer, and is part of a companies Intranet. So I don't need anything
>> cross browser compatible, but I was hoping for an easy fix.[/color]
>
> Associate each file input field with a checkbox that toggles the field's
> 'disabled' flag. (Disabled fields are always unsuccessful, so their
> contents
> should be ignored.)
>
> --
> Philip Ronan
> phil.ronanzzz@v irgin.net
> (Please remove the "z"s if replying by email)
>
>[/color]

Reset a File Input

Reset a File Input

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