我正在遵循表单的HTML代码:
<form name="question_issue_form" id="question_issue_form" action="question_issue.php">
<table class="trnsction_details" width="100%" cellpadding="5">
<tbody>
<tr>
<td></td>
<td>
<input type="checkbox" name = "que_issue[]" value = "Question is wrong" id ="chkQueWrong">Question is wrong</input>
</td>
</tr>
<tr>
<td></td>
<td><input type="checkbox" name = "que_issue[]" value = "Answers are wrong" id ="chkAnsWrong">Answers are wrong</input></td>
</tr>
<tr>
<td></td>
<td><input type="checkbox" name = "que_issue[]" value = "Question direction is incorrect" id ="chkDirIncorrect">Question direction is incorrecct</input></td>
</tr>
<tr>
<td></td>
<td><input type="checkbox" name = "que_issue[]" value = "Other" id ="chkOther">Other</input></td>
</tr>
<tr>
<td></td>
<td class="set_message" style="display:none;"><textarea name="que_issue_comment" rows="4" cols="25" maxlength="100"></textarea></td>
</tr>
<tr>
<td></td>
<td><input type="submit" name="submit" value="Submit" id="report_question_issue"/></td>
</tr>
</tbody>
</table>
</form>
我想在提交表单之前验证表单,以便从上述所有复选框中至少选中一个复选框,并且当选中值为“ Other”的复选框时,文本区域不应为空白。为此,我尝试了以下代码,但是即使选中了一个或多个复选框,它仍显示警报。此外,文本区域验证也无法正常工作。有人可以在提交表单之前帮助我更正此验证码吗?如果引发单个错误,则不应提交表单。以下是我尝试过的jQUery代码。
$(document).ready(function () {
$('#chkOther').click(function () {
$('.set_message').toggle(this.checked);
});
//This function is use for edit transaction status
$(document).on('click', '#report_question_issue', function (e) {
e.preventDefault();
//$.colorbox.close();
//for confirmation that status change
var ans = confirm("Are you sure to report the question issue over?");
if (!ans) { //alert("Yes its false");
return false;
}
var post_url = $('#post_url').val();
var checkbox = document.getElementsByName("que_issue[]");
var checkedAtLeastOne = false;
$('input[type="checkbox"]').each(function () {
if ($(this).is(":checked")) { alert("In If");
//atleast one is checked
checkedAtLeastOne = true;
} else { alert("In Else");
//error
alert("Check at least one checkbox");
}
var other = document.getElementById("chkOther");
var textfield = document.getElementByName("que_issue_comment");
if ($(other).is(":checked")) {
if ($(textfield).val().length == 0) {
//error
alert("Fill in the textarea");
}
}
});
$.ajax({
type: "POST",
url: post_url,
data: $('#question_issue_form').serialize(),
dataType: 'json',
success: function (data) {
alert("The values have been inserted");
}
});
});
});
最佳答案
您的if
条件是检查页面中的每个复选框。这就是为什么要转到其他部分并警告Check at least one checkbox
的原因。为避免这种情况,请尝试以下代码,
$(document).ready(function() {
$('#chkOther').click(function() {
$('.set_message').toggle(this.checked);
});
//This function is use for edit transaction status
$(document).on('click', '#report_question_issue', function(e) {
var submit = true;
e.preventDefault();
//$.colorbox.close();
//for confirmation that status change
var ans = confirm("Are you sure to report the question issue over?");
if (!ans) { //alert("Yes its false");
submit = false;
}
var post_url = $('#post_url').val();
var checkbox = document.getElementsByName("que_issue[]");
var checkedAtLeastOne = false;
$('input[type="checkbox"]').each(function() {
if ($(this).is(":checked")) {
checkedAtLeastOne = true;
return false; //to break from each()
}
});
if (checkedAtLeastOne) {
//alert("In If");
var other = $("#chkOther");
var textfield = $("[name=que_issue_comment]");
if (other.is(":checked")) {
if ($.trim($(textfield).val()).length == 0) {
//error
alert("Fill in the textarea");
submit = false;
}
}
}
else {
alert("Check at least one checkbox");
submit = false;
}
if (submit) {
$.ajax({
type: "POST",
url: post_url,
data: $('#question_issue_form').serialize(),
dataType: 'json',
success: function(data) {
alert("The values have been inserted");
}
});
}
else {
alert("Fix the error");
}
});
});
Fiddle