I couldn't figure out to do it unless I added some form of ID to each
input field. I'm not sure how one can get the place of an element
within a jQuery object, so this is how I approached your problem.
Tested in Win/FF2
<form>
<input type="checkbox" id="1"><label>box 1</label><br />
<input type="checkbox" id="2"><label>box 1 and 2</label><br
/>
<input type="checkbox" id="3"><label>box 1 and 2 and
3</label><br />
<input type="checkbox" id="4"><label>box 1 and 2 and 3 and
4</label><br />
</form>
<script>
$(document).ready(
function () {
$("[EMAIL PROTECTED]").each(
function () {
$(this).bind(
"click",
function ()
{
$(this).siblings("[EMAIL PROTECTED]").lt($(this).id()-1).each(
function () {
$(this).attr(
{
checked: 'true'
}
);
}
)
}
)
}
)
}
);
</script>
The code can be cleaned up a bit, but I like making it verbose while
trying to figure things out so that's what you get.
If someone knows how to snag the place of an element within a jQuery
collection so that number can be passed to the lt() function I'd love to
hear it.
-ALEX
________________________________
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Glen Lipka
Sent: Monday, November 27, 2006 4:27 PM
To: jQuery Discussion.
Subject: [jQuery] Checkbox: Selecting all Previous
This might be a newbie question, but I am having trouble with it.
I have 4 checkboxes vertical
<input type="checkbox"><label>box 1</label><br />
<input type="checkbox"><label>box 1 and 2</label><br />
<input type="checkbox"><label>box 1 and 2 and 3</label><br />
<input type="checkbox"><label>box 1 and 2 and 3 and 4</label><br />
When I click one, I want to check the boxes of all the ones previous to
it (including it). And uncheck all the boxes after it.
How would I structure the statement in jQuery to select? I am trying to
avoid the FOR loop.
This gives me the last one.
var lastOne = $("#myForm [EMAIL PROTECTED]:checked:last");
Not sure how to use this. I tried prev() but that didnt seem to work.
Thanks for the help,
Glen
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