Re: How to get the value of selected checkboxes from a datatable injavascript?

[Sunil Tiwari <su...@tatainfotech.com>]

Hi Slawek,
Thanx for ur suggestion...
Its working though the number of elements include other things apart from 
the number of rows in the table.

Thanx again
Sunil
----- Original Message ----- 
From: "Slawek" <ss...@o2.pl>
To: "MyFaces Discussion" <my...@incubator.apache.org>
Sent: Tuesday, February 22, 2005 1:26 AM
Subject: Re: How to get the value of selected checkboxes from a datatable 
injavascript?


> hi
>
> 1. you can iterate by all elements of your form
> 2. you can check property "checked" of _every_ element
> if element isnt checkbox it just havent property checked and if u try to 
> get its value it will be created with defaullt value false
>
> so...
>
> isSomethingChecked=false;
> for (i=0; i<document.form_name.elements.length; i++){
> if (document.form_name.elements[i].checked){
> isSomethingChecked=true;
> break;
> }
> }
>
> if (isSomethingChecked){
> //ask user if he is sure to delete
> }
> else{
> //probably do nothing
> }
>
> its lets say "pseudocode" ;) im not sure if it is ok, but i think that 
> idea is ok...
>
> BUT: it works only if there arent any other checkoboxes in your form
>
> Sławek
>
>>
>>
>> Hi All,
>>
>> I have a datatable and i have one checkbox on each row of the table.
>> There is a delete button which deletes all the checked rows.
>> I call a javascript on delete button which prompts the user : "are you 
>> sure you want to delete?"
>> Now the problem is that this message is displayed even without checking 
>> any row and it shd nt happen.
>> Now, how to get the value of selected check boxes in the javascript?
>> The number of checkboxes is determined at the runtime since its a 
>> datatable.
>>
>> Has anybody come across this problem?
>>
>> Looking forward to some advice on this topic.
>>
>> Thanx and Regards,
>> Sunil
>