[英]Check if all radio buttons selected then
我想检查是否所有单选按钮都已选中,如果没有使用警告消息。 警报消息有效,但无论如何都将发送到Answers.php而不选择字段。 如果警报为真,如何执行表单操作将不起作用? 谢谢。
count.js
$(document).ready(function () {
var names = {};
$(':radio').each(function () {
names[$(this).attr('name')] = true;
});
var count = 0;
$.each(names, function () {
count++;
});
$("#qSubmit").click(function () {
if ($(':radio:checked').length !== count) {
alert("not all checked");
}
});
});
form.php
$(document).ready(function () {
var names = {};
$(':radio').each(function () {
names[$(this).attr('name')] = true;
});
var count = 0;
$.each(names, function () {
count++;
});
$("#qSubmit").click(function () {
if ($(':radio:checked').length !== count) {
alert("not all checked");
}
});
});
<form action="bbb.php" method="post" id="quiz" style="margin-top:100px;" >
<?php
while ($row = $result2->fetch_assoc()) {
echo '<div class="row">';
echo '<div class="col-md-8 col-sm-8 col-xs-12">';
echo '<div class="borderis">' . $row['question'] . '</div><br>';
$i++;
echo '<fieldset id="group">';
echo '<label for="' . $row['answer1'] . '"><input type="radio" id="' . $row['answer1'] . '"name="answers' . $i . '" value="' . $row['answer1'] . '"> <bled></bled>
<span>' . $row['answer1'] . '</span></label>' . '<br>';
echo '<label for="' . $row['answer2'] . '"><input type="radio" id="' . $row['answer2'] . '"name="answers' . $i . '" value="' . $row['answer2'] . '"> <bled></bled>
<span>' . $row['answer2'] . '</span></label>' . '<br>';
echo '<label for="' . $row['answer3'] . '"><input type="radio" id="' . $row['answer3'] . '"name="answers' . $i . '" value="' . $row['answer3'] . '"> <bled></bled>
<span>' . $row['answer3'] . '</span></label>' . '<br>';
echo '<label for="' . $row['answer4'] . '"><input type="radio" id="' . $row['answer4'] . '"name="answers' . $i . '" value="' . $row['answer4'] . '"> <bled></bled>
<span>' . $row['answer4'] . '</span></label>' . '<br>';
echo '</fieldset>';
echo '</div></div>';
}
?>
<input type="submit" value="Pateikti atsakymus" name="result" class="qSubmit" id="qSubmit" />
</form>
您需要绑定提交事件处理程序,而不是理想情况下单击提交按钮,并防止表单的默认行为。
$(document).ready(function() { $("#quiz").on('submit', function(e) { var totalRadio = $(":radio").length; if ($('radio:checked').length !== totalRadio) { alert("not all checked"); e.preventDefault(); } }); });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <form action="bbb.php" method="post" id="quiz" style="margin-top:100px;"> Check 1<input type="radio" name="input1"> Check 1<input type="radio" name="input2"> Check 1<input type="radio" name="input3"> Check 1<input type="radio" name="input4"> Check 1<input type="radio" name="input5"> Check 1<input type="submit" value="Pateikti atsakymus" name="result" class="qSubmit" id="qSubmit" /> </form>
您需要阻止按钮的默认操作,即提交表单
$("#qSubmit").click(function(event) {
if ($(':radio:checked').length !== count) {
// prevent submit
event.preventDefault();
alert("not all checked");
}
});
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