Javascript 用户更正错误后未在Jquery中提交表单(返回false;)
我遇到了麻烦。我正在编写一个简单的抵押贷款计算器,它通过ajax将数据发送到calc.php 使用jquery,我检查以确保用户在请求的字段中输入适当的值;购买价格和首期付款都应为数字(工作),首期付款不能大于购买价格(工作),当选择期限时,利率自动填充(工作),如果期限或利率未填充(工作),则显示错误消息 当用户提交表单且任何必填项丢失时,将显示错误消息,建议。。。但是,当用户更正错误时,表单不会提交 通过查看我不太复杂的代码,您很快就会看到,我仍在学习Jquery,非常感谢您提供的任何输入 提前谢谢你的帮助 HTML格式:Javascript 用户更正错误后未在Jquery中提交表单(返回false;),javascript,jquery,ajax,Javascript,Jquery,Ajax,我遇到了麻烦。我正在编写一个简单的抵押贷款计算器,它通过ajax将数据发送到calc.php 使用jquery,我检查以确保用户在请求的字段中输入适当的值;购买价格和首期付款都应为数字(工作),首期付款不能大于购买价格(工作),当选择期限时,利率自动填充(工作),如果期限或利率未填充(工作),则显示错误消息 当用户提交表单且任何必填项丢失时,将显示错误消息,建议。。。但是,当用户更正错误时,表单不会提交 通过查看我不太复杂的代码,您很快就会看到,我仍在学习Jquery,非常感谢您提供的任何输入
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Calculator</title>
<link rel="stylesheet" type="text/css" href="css/css.css">
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"> </script>
<script type="text/javascript" src="js/js.js" charset="utf-8"></script>
</head>
<body>
<h1>Mortgage</h1>
<form action="calc.php" method="post" id="mortgage-form">
<p class="errorMessage" id="shouldBeNumber">*This value can only contain numbers</p>
<p id="pPrice"><span class="errorMessage" id="PPmustBeNumber">*</span>Purchase Price:
<input type="text" name="purchase-price" id="purchase-price" value="0"/>
<span class="errorMessage" id="purchasePriceError">Please enter a number value!</span>
</p>
<p id="dPayment"><span class="errorMessage" id="DPmustBeNumber">*</span>Down Payment:
<input type="text" name="down-payment" id="down-payment" value="0"/>
<span class="errorMessage" id="downPaymentError">Down payment value must be less than Purchase Price!</span>
</p>
<p id="term">
<select id="loan-term">
<option value="noValueSelected">-- Select a Term -- </option>
<option value="15yrs">15 Years</option>
<option value="20yrs">20 Years</option>
<option value="30yrs">30 Years</option>
</select><span class="errorMessage" id="termRequired"> * Term is required.</span>
</p>
<div id="interest-rate"></div>
<p><input type="submit" name="submit" id="submit" value="Calculate!" /></p>
</form>
<footer>
<p>
© Copyright by Ricardo
</p>
</footer>
</body>
</html>
计算器
抵押贷款
*此值只能包含数字
*购买价格:
请输入一个数值!
*首付款:
首付金额必须小于购买价格!
--选择一个术语--
15年
二十年
30年
*期限是必需的。
&抄袭;版权归里卡多所有
这是我的JQUERY
$(function() {
//HIDE errors
$('.errorMessage').hide();
//Do something when loan-term changes
$('#loan-term').change(function(){
var loanTerm = $(this).val();
var interestOption = '';
//alert(loanTerm);
if (loanTerm == '15yrs') {
interestOption += "<option value='15yrFixed'>15 Year Fixed: 2.88% </option>";
} else if (loanTerm == '20yrs') {
interestOption += "<option value='20yrFixed'>20 Year Fixed: 3.52%</option>";
} else if (loanTerm == '30yrs') {
interestOption += "<option value='30yrFixed'>30 Year Fixed: 4.2%</option>";
}
if (loanTerm != "noValueSelected") {
var interestRate =
"<select id='interest-rate'><option value='selectInterestRate'>-- Select an Interest Rate -- </option>" + interestOption + "</select><span class='errorMessage' id='interestRequired'> * This field is required.</span>";
$('#interest-rate').html(interestRate).show();
} else if (loanTerm == "noValueSelected") {
$('#interest-rate').hide();
}
});//END loan-term check
$('#mortgage-form').submit(function() {
var purchasePrice = $('#purchase-price').val();
var downPayment = $('#down-payment').val();
var loanTerm = $('#loan-term').val();
var interestRate = $('#interest-rate').val();
function containsNumber(val) {
return /^(\d|,)+$/.test(val)
}
if (containsNumber(purchasePrice) == true && containsNumber(downPayment) == true ) {
$('#PPmustBeNumber').hide();
$('#DPmustBeNumber').hide();
$('#shouldBeNumber').hide();
//alert(purchasePrice + downPayment);
//CHECK IF DOWNPAYMENT IS LESS THAN PURCHASE PRICE.
if (downPayment < purchasePrice) {
$('#downPaymentError').hide();
} else {
$('#downPaymentError').show();
}
} else if (containsNumber(purchasePrice) == false){
$('#PPmustBeNumber').show();
$('#shouldBeNumber').show();
} else if (containsNumber(downPayment) == false) {
$('#DPmustBeNumber').show();
$('#shouldBeNumber').show();
}
if (loanTerm != "noValueSelected") {
$('#termRequired').hide();
$("#interest-rate").change(function() {
if (interestRate != "selectInterestRate"){
$('#interestRequired').hide();
} else if (interestRate == "selectInterestRate"){
$('#interestRequired').show();
}
})
} else if (loanTerm == "noValueSelected"){
$('#termRequired').show();
}
if ( purchasePrice && downPayment && loanTerm && interestRate) {
var data = new Object();
data.purchasePrice = purchasePrice;
data.downPayment = downPayment;
data.loanTerm = loanTerm;
data.interestRate = interestRate;
data.interestOption = interestOption;
//create an object of Ajax options:
var options = new Object();
//Establish each setting:
options.data = data;
options.dataType= 'text';
options.type = 'get';
options.url = 'calc.php';
//perform the request:
$.ajax(options);
}
return false;
}); //END SUBMIT FUNCTION
});
$(函数(){
//隐藏错误
$('.errorMessage').hide();
//贷款期限改变时做些什么
$(“#贷款期限”)。更改(函数(){
var loanTerm=$(this.val();
var利息率=“”;
//警报(loanTerm);
如果(loanTerm==“15年”){
利息率+=“15年固定利率:2.88%”;
}否则如果(loanTerm=='20yrs'){
利息率+=“20年固定利率:3.52%”;
}否则,如果(loanTerm='30年'){
利息率+=“30年固定利率:4.2%”;
}
如果(loanTerm!=“noValueSelected”){
利率风险=
“--选择利率--”+利息选项+“*此字段为必填项。”;
$('#interest-rate').html(interestRate.show();
}else if(loanTerm==“noValueSelected”){
$(“#利率”).hide();
}
});//结束贷款期限检查
$(“#抵押贷款表”)。提交(函数(){
var purchasePrice=$(“#购买价格”).val();
var首付=$(“#首付”).val();
var loanTerm=$(“#贷款期限”).val();
var利率=$(“#利率”).val();
函数containsNumber(val){
返回/^(\d |,)+$/.test(val)
}
if(containsNumber(purchasePrice)==true&&containsNumber(首期付款)==true){
$('#PPmustBeNumber').hide();
$('DPmustBeNumber').hide();
$(“#shouldBeNumber”).hide();
//警报(购买价格+首付);
//检查首期付款是否低于购买价格。
if(首付款<购买价格){
$(“#downPaymentError”).hide();
}否则{
$(“#downPaymentError”).show();
}
}如果(containsNumber(purchasePrice)=false){
$('#PPmustBeNumber').show();
$('shouldBeNumber').show();
}否则,如果(包含数字(首付款)=false){
$('DPmustBeNumber').show();
$('shouldBeNumber').show();
}
如果(loanTerm!=“noValueSelected”){
$(“#term required”).hide();
$(“#利率”)。更改(函数(){
如果(利率!=“选择利率”){
$(“#需要兴趣”).hide();
}else if(利率==“selectInterestRate”){
$(“#需要利息”).show();
}
})
}else if(loanTerm==“noValueSelected”){
$(“#term required”).show();
}
if(采购价格、首付款、贷款和利息){
var data=新对象();
data.purchasePrice=采购价格;
data.downPayment=首付款;
data.loanTerm=loanTerm;
data.interestRate=利率;
data.interestOption=interestOption;
//创建Ajax选项的对象:
var options=新对象();
//建立每个设置:
options.data=数据;
options.dataType='text';
options.type='get';
options.url='calc.php';
//执行请求:
$.ajax(选项);
}
返回false;
});//结束提交函数
});
如果使用jQuery的ajax函数,则无需提交表单。此外,如果希望表单提交,则需要输入if函数以返回true,否则表单将不会提交。不管发生什么,代码都会返回false。您需要将其设置为有条件的,因此,如果由于用户满足条件而没有显示错误,那么表单将返回true并发送,但是您不需要ajax,正如我所提到的
使用jQuery验证并正常提交表单的示例代码:
为了使其正常工作,我将提交按钮从type=“submit”更改为type=“button”,这将阻止它自动提交
$('#submit').click(function(){
// put all your code to check inputs for errors here.
$('#mortgage-form').submit();
});
通过这种方式,您可以使用javascript进行验证,然后将表单发送到calc.php页面,使其符合您的需要。我只希望表单按照正常方式提交,而不必执行ajax。我看到的主要问题是,您没有办法让表单
返回true代码>允许表单实际提交。试着为下面的这篇文章使用subbing函数,这会让你大开眼界
$('#mortgage-form').submit(function () {
var purchasePrice = $('#purchase-price').val();
var downPayment = $('#down-payment').val();
var loanTerm = $('#loan-term').val();
var interestRate = $('#interest-rate').val();
function containsNumber(val) {
return /^(\d|,)+$/.test(val)
}
if (containsNumber(purchasePrice) == true && containsNumber(downPayment) == true) {
$('#PPmustBeNumber').hide();
$('#DPmustBeNumber').hide();
$('#shouldBeNumber').hide();
//alert(purchasePrice + downPayment);
//CHECK IF DOWNPAYMENT IS LESS THAN PURCHASE PRICE.
if (downPayment < purchasePrice) {
$('#downPaymentError').hide();
} else {
$('#downPaymentError').show();
}
} else if (containsNumber(purchasePrice) == false) {
$('#PPmustBeNumber').show();
$('#shouldBeNumber').show();
} else if (containsNumber(downPayment) == false) {
$('#DPmustBeNumber').show();
$('#shouldBeNumber').show();
}
if (loanTerm != "noValueSelected") {
$('#termRequired').hide();
$("#interest-rate").change(function () {
if (interestRate != "selectInterestRate") {
$('#interestRequired').hide();
} else if (interestRate == "selectInterestRate") {
$('#interestRequired').show();
}
})
} else if (loanTerm == "noValueSelected") {
$('#termRequired').show();
}
if (purchasePrice && downPayment && loanTerm && interestRate) {
var data = new Object();
data.purchasePrice = purchasePrice;
data.downPayment = downPayment;
data.loanTerm = loanTerm;
data.interestRate = interestRate;
data.interestOption = interestOption;
//create an object of Ajax options:
var options = new Object();
//Establish each setting:
options.data = data;
options.dataType = 'text';
options.type = 'get';
options.url = 'calc.php';
return true;
}
return false;
}); //END SUBMIT FUNCTION
$(“#抵押贷款表”)。提交(函数(){
var purchasePrice=$(“#购买价格”).val();
var首付=$(“#首付”).val();
var loanTerm=$(“#贷款期限”).val();
var利率=$(“#利率”).val();
functi