StackOverflow2013

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Id
17936271
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
8
CommunityOwnedDate
CreationDate
2013-07-30T00:06:33.353
FavoriteCount
0
LastActivityDate
2013-07-30T08:19:39.343
LastEditDate
2013-07-30T08:19:39.343
LastEditorUserId
983992
OwnerUserId
983992
ParentId
17935869
PostTypeId
2
Score
3
ViewCount
0
LastEditorDisplayName
text
Body
<p>I'm just going to give you a hint on how to catch up the checked checkboxes once the form is submitted (<a href="http://jsfiddle.net/uEQVC/11/" rel="nofollow"><strong>DEMO</strong></a>).</p> <p>Imagine you have the following html:</p> <pre><code><form id="testForm"> <input class="checkbox" name="one" type="checkbox"> <input class="checkbox" name="two" type="checkbox"> <input class="checkbox" name="three" type="checkbox"> <input type="hidden" name="checkboxStr" id="checkbox_str"> <button>Send</button> </form> </code></pre> <p>You can add an event listener to form submission:</p> <pre><code>var form = document.getElementById('testForm'); try { form.addEventListener("submit", submitFn, false); } catch(e) { form.attachEvent("onsubmit", submitFn); //IE8 } </code></pre> <p>And then you can get all the needed checkboxes with for example its class name. Loop trough them and add the checked ones to an array which you later on join to a string.</p> <pre><code>function submitFn(event) { event.preventDefault(); var boxes = document.getElementsByClassName('checkbox'); var checked = []; for(var i=0; boxes[i]; ++i){ if(boxes[i].checked){ checked.push(boxes[i].name); } } var checkedStr = checked.join(); document.getElementById('checkbox_str').value = checkedStr; form.submit(); return false; } </code></pre> <p>You can now send this string via ajax or you can add a hidden form field and set the string as its value and submit the form without ajax.</p>
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1. POCombine checkbox values into string before submitting form
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1. USMarcel Gwerder
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