Javascript checkValidity()和reportValidity()在for循环中不起作用
我有一个多步骤表单,我想在当前步骤中添加HTML 5表单验证。我在代码中的for循环中使用了checkValidity()和reportValidity(),但它只适用于当前步骤的最后一个字段。下面是我的表单代码和JavaScript代码,请让我知道我在这里做错了什么 JavaScriptJavascript checkValidity()和reportValidity()在for循环中不起作用,javascript,jquery,Javascript,Jquery,我有一个多步骤表单,我想在当前步骤中添加HTML 5表单验证。我在代码中的for循环中使用了checkValidity()和reportValidity(),但它只适用于当前步骤的最后一个字段。下面是我的表单代码和JavaScript代码,请让我知道我在这里做错了什么 JavaScript <script> var currentTab = 0; // Current tab is set to be the first tab (0) showTab(cur
<script>
var currentTab = 0; // Current tab is set to be the first tab (0)
showTab(currentTab); // Display the current tab
function showTab(n) {
// This function will display the specified tab of the form...
var x = document.getElementsByClassName("tab");
x[n].style.display = "block";
//... and fix the Previous/Next buttons:
if (n == 0) {
document.getElementById("prevBtn").style.display = "none";
} else {
document.getElementById("prevBtn").style.display = "inline";
}
if (n == (x.length - 1)) {
document.getElementById("nextBtn").innerHTML = "Submit";
document.getElementById("nextBtn").name = "signup";
document.getElementById("nextBtn").type = "submit";
} else {
document.getElementById("nextBtn").innerHTML = "Next";
document.getElementById("nextBtn").name = "";
document.getElementById("nextBtn").type = "button";
}
//... and run a function that will display the correct step indicator:
fixStepIndicator(n)
}
function nextPrev(n) {
// This function will figure out which tab to display
var x = document.getElementsByClassName("tab");
// Exit the function if any field in the current tab is invalid:
if (n == 1 && !validateForm()) return false;
// Hide the current tab:
x[currentTab].style.display = "none";
// Increase or decrease the current tab by 1:
currentTab = currentTab + n;
// if you have reached the end of the form...
if (currentTab >= x.length) {
// ... the form gets submitted:
document.getElementById("regForm").submit();
return false;
}
// Otherwise, display the correct tab:
showTab(currentTab);
}
// VALIDATION CHECK HERE
function validateForm() {
// This function deals with validation of the form fields
var x, y, i, valid = true;
x = document.getElementsByClassName("tab");
y = x[currentTab].getElementsByTagName("input");
// A loop that checks every input field in the current tab:
for (i = 0; i < y.length; i++) {
if(y[i].checkValidity()) {
return true;
}
else {
y[i].reportValidity();
valid = false;
}
}
// If the valid status is true, mark the step as finished and valid:
if (valid) {
document.getElementsByClassName("step")[currentTab].className += " finish";
}
return valid; // return the valid status
}
function fixStepIndicator(n) {
// This function removes the "active" class of all steps...
var i, x = document.getElementsByClassName("step");
for (i = 0; i < x.length; i++) {
x[i].className = x[i].className.replace(" active", "");
}
//... and adds the "active" class on the current step:
x[n].className += " active";
}
</script>
var currentTab=0;//当前选项卡设置为第一个选项卡(0)
显示选项卡(当前选项卡);//显示当前选项卡
功能显示选项卡(n){
//此函数将显示表单的指定选项卡。。。
var x=document.getElementsByClassName(“选项卡”);
x[n].style.display=“块”;
//…并修复上一个/下一个按钮:
如果(n==0){
document.getElementById(“prevBtn”).style.display=“无”;
}否则{
document.getElementById(“prevBtn”).style.display=“inline”;
}
如果(n==(x.length-1)){
document.getElementById(“nextBtn”).innerHTML=“提交”;
document.getElementById(“nextBtn”).name=“signup”;
document.getElementById(“nextBtn”).type=“提交”;
}否则{
document.getElementById(“nextBtn”).innerHTML=“Next”;
document.getElementById(“nextBtn”).name=“”;
document.getElementById(“nextBtn”).type=“button”;
}
//…并运行一个功能,该功能将显示正确的步进指示器:
固定步进指示器(n)
}
函数nextPrev(n){
//此函数将确定要显示的选项卡
var x=document.getElementsByClassName(“选项卡”);
//如果当前选项卡中的任何字段无效,请退出该功能:
如果(n==1&&!validateForm())返回false;
//隐藏当前选项卡:
x[currentTab].style.display=“无”;
//将当前选项卡增加或减少1:
currentTab=currentTab+n;
//如果您已到达表单的末尾。。。
如果(currentTab>=x.length){
//…表格将在以下时间提交:
document.getElementById(“regForm”).submit();
返回false;
}
//否则,显示正确的选项卡:
显示选项卡(当前选项卡);
}
//验证检查在这里
函数validateForm(){
//此函数用于验证表单字段
变量x,y,i,valid=true;
x=document.getElementsByClassName(“选项卡”);
y=x[currentTab].getElementsByTagName(“输入”);
//检查当前选项卡中每个输入字段的循环:
对于(i=0;i
HTML
<form id="regForm" action="/action_page.php">
<h1>Register:</h1>
<!-- One "tab" for each step in the form: -->
<div class="tab">Name:
<p><input type="text" placeholder="First name..." oninput="this.className = ''" name="fname" pattern="[a-zA-Z][a-zA-Z ]{2,30}" required="required"></p>
<p><input type="text" placeholder="Last name..." oninput="this.className = ''" name="lname" pattern="[a-zA-Z][a-zA-Z ]{2,30}" required="required"></p>
</div>
<div class="tab">Contact Info:
<p><input type="email" placeholder="E-mail..." oninput="this.className = ''" name="email" required="required"></p>
<p><input type="text" placeholder="Phone..." oninput="this.className = ''" name="phone" pattern="[6-9][0-9]{9}" required="required"></p>
</div>
<div class="tab">Birthday:
<p><input type="text" placeholder="dd" oninput="this.className = ''" name="dd" required="required"></p>
<p><input type="text" placeholder="mm" oninput="this.className = ''" name="nn" required="required"></p>
<p><input type="text" placeholder="yyyy" oninput="this.className = ''" name="yyyy" required="required"></p>
</div>
<div class="tab">Login Info:
<p><input type="text" placeholder="Username..." oninput="this.className = ''" name="uname" required="required"></p>
<p><input placeholder="Password..." oninput="this.className = ''" name="pword" type="password" required="required"></p>
</div>
<div style="overflow:auto;">
<div style="float:right;">
<button type="button" id="prevBtn" onclick="nextPrev(-1)">Previous</button>
<button type="button" id="nextBtn" onclick="nextPrev(1)">Next</button>
</div>
</div>
<!-- Circles which indicates the steps of the form: -->
<div style="text-align:center;margin-top:40px;">
<span class="step"></span>
<span class="step"></span>
<span class="step"></span>
<span class="step"></span>
</div>
</form>
登记册:
姓名:
联系方式:
生日:
登录信息:
以前的
下一个
CSS
<style>
* {
box-sizing: border-box;
}
body {
background-color: #f1f1f1;
}
#regForm {
background-color: #ffffff;
margin: 100px auto;
font-family: Raleway;
padding: 40px;
width: 70%;
min-width: 300px;
}
h1 {
text-align: center;
}
input {
padding: 10px;
width: 100%;
font-size: 17px;
font-family: Raleway;
border: 1px solid #aaaaaa;
}
/* Mark input boxes that gets an error on validation: */
input.invalid {
background-color: #ffdddd;
}
/* Hide all steps by default: */
.tab {
display: none;
}
button {
background-color: #4CAF50;
color: #ffffff;
border: none;
padding: 10px 20px;
font-size: 17px;
font-family: Raleway;
cursor: pointer;
}
button:hover {
opacity: 0.8;
}
#prevBtn {
background-color: #bbbbbb;
}
/* Make circles that indicate the steps of the form: */
.step {
height: 15px;
width: 15px;
margin: 0 2px;
background-color: #bbbbbb;
border: none;
border-radius: 50%;
display: inline-block;
opacity: 0.5;
}
.step.active {
opacity: 1;
}
/* Mark the steps that are finished and valid: */
.step.finish {
background-color: #4CAF50;
}
</style>
* {
框大小:边框框;
}
身体{
背景色:#f1f1;
}
#正则表达式{
背景色:#ffffff;
保证金:100像素自动;
字体系列:雷威;
填充:40px;
宽度:70%;
最小宽度:300px;
}
h1{
文本对齐:居中;
}
输入{
填充:10px;
宽度:100%;
字号:17px;
字体系列:雷威;
边框:1px实心#AAAAA;
}
/*标记在验证时出错的输入框:*/
输入无效{
背景色:#ffdddd;
}
/*默认情况下隐藏所有步骤:*/
.标签{
显示:无;
}
钮扣{
背景色:#4CAF50;
颜色:#ffffff;
边界:无;
填充:10px 20px;
字号:17px;
字体系列:雷威;
光标:指针;
}
按钮:悬停{
不透明度:0.8;
}
#prevBtn{
背景色:#bbbbbb;
}
/*制作圆圈,指示表格的步骤:*/
.步骤{
高度:15px;
宽度:15px;
边际:0.2px;
背景色:#bbbbbb;
边界:无;
边界半径:50%;
显示:内联块;
不透明度:0.5;
}
.step.active{
不透明度:1;
}
/*标记已完成且有效的步骤:*/
.一步完成{
背景色:#4CAF50;
}
您的“if(y[i].checkValidity(){return true;}”有一个问题,如果出现这个问题,return语句不仅会退出循环,还会退出函数,并且永远不会碰到if(valid){…}好的,应该有什么请让我知道好的,现在解决这个问题谢谢您if(y[i].checkValidity(){valid=true;}否则{y[i].reportValidity();valid=false;返回false;}