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[英]Detecting when more than one checkbox is checked in a form with JavaScript
[英]Validation on other when more than one checkbox is checked
我有一個包含一系列復選框的表單。 選中另一個復選框后,如果您沒有填寫另一個文本框,則會顯示一個警報。
如果我選中多個復選框,那么它根本無法驗證?
<form>
<div id="form-2" class="pages active" data-page="form-2" style="display: block;">
<p>Please indicate below the quality issue(s) you were not happy with. Pick as many options as apply. <span class="required">*</span></p>
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="test">
<input type="checkbox" name="qual-form-2[]" value="Other, please specify in the box below">
<input type="text" name="qual-form-other-form-2" value="" size="40" class="wpcf7-form-control wpcf7-text" aria-invalid="false">
<button class="next-page" data-page-id="form-2">Next</button>
</div>
</form>
<script>
if (pageCurrent.data('page') == 'form-2') {
var answer = pageCurrent.find('input[name="qual-form-2[]"]:checked').val();
if ( (answer == 'Other, please specify in the box below') && ($('input[name="qual-form-other-form-2"]').val().length > 0)) {
$('input[name="qual-form-other-form-2"]').removeClass('empty');
return true;
} else if ( (answer == 'Other, please specify in the box below') && (!$('input[name="qual-form-other-form-2"]').val().length > 0)) {
alert('Please specify other');
$('input[name="qual-form-other-form-2"]').addClass('empty');
return false;
} else if ( (answer == 'Other, please specify in the box below') && (!$('input[name="qual-form-other-form-2"]').val().length > 0) && ($('input[name="qual-form-2[]').is(":checked"))) {
alert('Please specify other');
$('input[name="qual-form-other-form-2"]').addClass('empty');
return false;
} else if ($('input[name="qual-form-2[]').is(":checked")) {
return true;
} else {
alert('Validation errors occurred. Please confirm the fields and submit it again.');
}
}
</script>
試試看:更改您的按鈕type="button"
並在下面的腳本中調用。
$(function(){
$('.next-page').click(function(){
var checkCount = $('input[name="qual-form-2[]"]:checked').length;
//check atleast one checkbox checked
if(checkCount > 0)
{
var checkOther = $('input[name="qual-form-2[]"]:last');
var checkNotOther = $('input[name="qual-form-2[]"]:checked').not(checkOther);
//if 'other' and any of the rest is checked show alert
if(checkNotOther.length > 0 && checkOther.is(':checked'))
{
$('input[name="qual-form-other-form-2"]').addClass('empty');
alert('Please select either "Other" or another checkbox');
}
//if other checked and input is empty show alert
else if(checkOther.is(':checked') && $('input[name="qual-form-other-form-2"]').val() == "")
{
$('input[name="qual-form-other-form-2"]').addClass('empty');
alert('Please specify other');
}
else
{
alert('Validation Succeeded');
}
}
else
{
alert('Please check atleast one checkbox');
}
});
});
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