JQuery :: Cannot Add A Checked=checked Attribute To Input Tag?
Feb 10, 2010
I want this function to attach the attributechecked=checked to the input
<input type='checkbox' id='ckbox4' name='please select4' value='1234' '/>
The following code does not do this$("#ckbox4").attr('checked','checked');
or $("#ckbox4").attr('checked',true);
i have some regular html form with few inputs (text). all the form parameters are sending to asp.net page that handling the data (by parameters) and thats work fine. I also have one checkbox that need to send true if it checked or false if didn't checked. all the sulotions i found on the internet is to check if the user is checked one of few checkbox or if the user checked at all, and can't find what i need, which is to send true / false parameter after clicking the SEND btn.
I've got quite a challenging problem (for me) with jQuery and highlighting a parent <li> from activating checkboxes.I've got a nested unordered list which contains checkboxes... Example HTML:
<!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">
This is probably noobalicious so apologies, i have a checkbox i am checking on and off and then setting a readonly input with a value depending upon if it is checked on/off
This works fine for one click on or off but then how do i get back out of the function once this cycle has been done once? Set something to null?
I'm currently developing an online work brief, where the user has to enter details regarding the project into a form. I've come to a section in the form where the user has the option of selecting between two checkboxes and an input element. I have to ensure that at least one of the checkboxes have been checked or that the input element is not empty. I've come up with this function:
function validateMedia(){ var count = 0; if(document.workBrief.mediaOnline.checked){ count++; } if(document.workBrief.mediaPrint.checked){ count++; } if(document.workBrief.mediaOther.value != ""){ count++; } if(count 0){ return true; }else{ alert('Please choose at least one media option'); return false; }}
I'm sure there is a more effiecient way of writing this.
Heres my javascript code that will verify email from email input field and check if the checkbox (I agree condition) was checked:
[Code]....
However, this will work fine when calling with a link "javascript:validate('inputForm');" but if I try to prevent users by submitting form with pressing enter I put it in form onSubmit parameter: <form .. onSubmit="javascript:validate('inputForm');"> which will check the forms and submit data (do return) no matter if it matched or no.
I've added some functionality to a checkbox. So that when the checkbox is checked it will display a div, when unchecked it will hide the div. This is working fine except when the checkbox is clicked, it doesn't display the checkmark in it. And when the form is submitted, the checkbox is unchecked.
I have a really weird problem. I update checkboxes (set them to true/false) through jQuery, and their "checked" attribute gets set (when I loop through it), but the checkbox state won't show in the browser. Has someone an idea what it could be?
I want to compare the total number of checkboxes with the number of checked checkboxes of a certain nameI use these 2 functions:
alert($('input[name=checkItem]').length); // To get the total count alert($('input[name=checkItem]:selected').length); //To get the total selected count
I have a form with some checkboxes and I would like to submit it(through jquery) only if at least 1 checkbox is checked, otherwise Iwant to display an alert message.How can I get the number of checked boxes?I tried $("INPUT[type='checkbox']").is(':checked')but lookslike it doesn't work.Any ideas about how I can achieve so?
Here are two examples, you will need to goto the link andclick on "Add New Customer" on the right hand side.This one works:This is the code (it sets the property to checked and visually appears checked):
I have a form with x questions (the questions come from a database, so the number of questions is variable). Each question needs to be answered with a number form 1 to 10, I do this using radio buttons. The name if those radio buttons is "name" followed by the id of the question in the database. Because the name is variable and the number of questions is variable, how can I check if all the questions are answered i.e. one radio button must be checked for every group of radio buttons.
I have a list of check boxes on a page and disable/enable a button based on if one or more of the check boxes is checked. If something in the list is checked, the button gets enabled. Otherwise, it is disabled. Since the list fairly long and it is also dynamic, this behavior is bound to the click event of each check box using live.
In jQuery 1.3.2 the following check worked as expected (with both actual and programmatic clicks) : if ($('input:checked').length > 0) { $('#button').removeAttr('disabled'); } else { $('#button').attr('disabled', 'disabled'); }
However, in jQuery 1.4.2 this behavior changes slightly. Actual clicks still register correctly and the code above functions as expected. Programmatic .click()s, on the other hand, pass through with the opposite behavior. When checking the state of $('input:checked').length afterward, it reports as I would have originally expected. I use this technique to unit test my code, so it is important that a programmatic click simulates an actual user click. This appears to be related to the known issue with the timing of :checked being switched when checking from a bound click handler.
Although I didn't see this timing issue with the above code in the past, I have seen it when checking the state of a single check box when it was the one that was clicked. When checking a single check box, I could work around this by maintaining a state variable rather than checking the :checked state directly. Now that this same issue is showing up when checking multiple checkboxes (in addition to the one actually receiving the click) that work around becomes much more difficult.
This code is supposed to find all table rows with a class of "selected", remove that class, then find all checked inputs that are descendants of a tr and give its tr a class of selected. The problem is, that even radio boxes that are not checked are being returned by $(' tr input:checked', '#deviceSelection') and everything is getting a class of selected. Anyone know whats wrong? I'm using jQuery 1.4.1