2017-02-03 68 views
0

我想弄清楚为什么表单的“提交此表单”按钮没有带我到<form ... action="submit form.html" method="get">属性中指定的另一个HTML页面,不仅如此,而且当我输入错误的名字,电子邮件地址和订单号时,和订单日期,它不会返回我使用JavaScript在我的if-else代码中指定的JavaScript消息。当我点击它时,为什么我的表单提交按钮不会进入下一页?

这是我在表单上使用的JavaScript代码。

var $ = function (id) 
 
{ 
 
    return document.getElementById(id); 
 
} 
 

 
var submitForm = function() 
 
{ 
 
    var FirstName= $("firstName").value; 
 
    var OrderNumber= $("orderNumber").value; 
 
    var DateOfOrder= $("date_of_order").value; 
 
    var emailAddress= $("email_address").value; 
 
    var isValid=true; 
 
    
 
    if(FirstName !== "Cherry", "Micheal", "Sandra", "Cookie") 
 
    { 
 
     $("firstname_error").firstChild.nodeValue= 
 
     "This person does not exist."; 
 
     isValid=false; 
 
    } else{ $("firstname_error").firstChild.nodeValue="";} 
 
    
 
    if(OrderNumber !== 3134, 4234, 9234, 3566) 
 
    { 
 
    $("orderNumber_error").firstChild.nodeValue="Invalid Order Number."; 
 
    isValid=false; 
 
    } else{ $("orderNumber_error").firstChild.nodeValue="";} 
 

 
    if(DateOfOrder !=='12-07-23', '15-04-24', '16-02-01', '14-01-12') 
 
    { 
 
    $("date_of_order_error").firstChild.nodeValue="Date doesn't exist in 
 
    system"; 
 
    isValid=false; 
 
    } else{ $("date_of_order_error").firstChild.nodeValue="";} 
 
    
 
    if(emailAddress !="[email protected]", "[email protected]", 
 
    "[email protected]", "[email protected]") 
 
    { 
 
    $("email_address_error").firstChild.nodeValue="The email doesn't exist"; 
 
    isValid=false; 
 
    } else{ $("email_address_error").firstChild.nodeValue="";} 
 
    if(isValid) 
 
    { 
 
\t //submit the form if all entries are valid 
 
\t  $("cookie_form").submit(); 
 
    } 
 
} 
 
window.onload = function() 
 
    { 
 
    $("form_submission").onclick = submitForm; \t 
 
    $("email_address").focus(); 
 
    }
body{ 
 
     background-color:#FBFBE8; 
 

 

 
} 
 
/* Tells HTML5 to find the font-type-face that my OS has and then use that for heading 1 
 
    and also centers the first heading */ 
 
         
 
h1{ 
 
      font-family:Arial, Helvetica, sans-serif; 
 
\t  text-align:center;   
 
} 
 

 

 
/* Tells HTML5 to use any of the font-types for my first paragraph in HTML source file 
 
    if one is not available. Also clears some white space 
 
    from the left margin of the paragraph and finally tells it to give that paragraph 
 
    a size of 20 pixels. */ 
 

 
p{ 
 
      font-family:Arial, Helvetica, sans-serif; 
 
      padding: 20px; 
 
      font-size:20px; 
 
} 
 

 

 

 
label{ 
 
\t float: left; 
 
\t width: 11em; 
 
\t text-align: right; 
 
     font-family:Arial, Helvetica, sans-serif; 
 
     color:#800000; 
 

 
} 
 
    input{ 
 
    \t margin-left: 1em; 
 
    \t margin-bottom:.5em; 
 
    } 
 
    span{ 
 
    \t color: red; 
 
    } 
 

 
.field_set_1{ 
 
       border-color: purple; 
 
       border-style: solid; 
 

 

 
} 
 

 
#form_submission{ 
 
        background-color:black; color:white; 
 

 
} 
 

 
legend{ 
 
     font-family:Arial, Helvetica, sans-serif; 
 
      color:blue; 
 
      
 
      
 

 
} 
 

 
/* All of the classes are just for positioning and floating the four 
 
same images around the form input information */ 
 

 
.Wrap1{ 
 
      float:right; 
 
      margin:40px; 
 
      width:200px; 
 
      height:200px; 
 
} 
 
.Wrap2{ 
 
      float:left; 
 
      margin:40px; 
 
      width:200px; 
 
      height:200px; 
 
} 
 

 
.clearfix { 
 
    clear: both; 
 
}
<!DOCTYPE html> 
 
<html> 
 
<head> 
 
<title>Cookie Order Form </title> 
 
<link rel="stylesheet" href="First_Design.css"> 
 
<script src="cookieform.js"></script> 
 
</head> 
 
<body> 
 
<h1>Cookie Order Form</h1> 
 
<p>This form is a cookie order form for customers that purchased cookies from 
 
Daron's Cookies Company and the following below must be filled out in order for each 
 
customer to receive a final message that tells them when their order will be ready.</p> 
 

 

 
<IMG class="Wrap1" SRC="cookie.gif" alt="cookie"> 
 
<IMG class="Wrap2" SRC="cookie.gif" alt="cookie2"> 
 

 

 

 
<!--The customer will be sent to the HTML page named "submit form.html" after they 
 
    click the "Submit this Form" button. The code below does this. --> 
 
<div> 
 
<form id="cookie_form" name="cookie_form" action="submit form.html" method="get"> 
 

 
<fieldset class="field_set_1"> 
 
     <!-- Below sets the title of the form--> 
 
    <legend>Customer Order Form Information:</legend> 
 

 

 
<!-- Creates the first left label to specify what should be placed in the text box 
 
    the the right of the label. The rest below does the same.--> 
 
    
 
    <label for="firstName">First Name:</label> 
 
    <input type="text" id="firstName" name="firstName"> 
 
    <span id="firstname_error">*</span><br> 
 

 
    <label for="orderNumber">Order Number:</label> 
 
    <input type="text" id="orderNumber" name="orderNumber"> 
 
    <span id="orderNumber_error">*</span><br> 
 
    
 
    <label for="date_of_order">Date of Order:</label> 
 
    <input type="text" id="date_of_order" name="date_of_order"> 
 
    <span id="date_of_order_error">*</span><br> 
 

 
    <label for="email_address">Email Address:</label> 
 
    <input type="text" id="email_address" name="email_address"> 
 
    <span id="email_address_error">*</span><br> 
 

 
    <label>&nbsp;</label> 
 
    
 
    <input type="button" id="form_submission" value="Submit this Form"> 
 
    </fieldset> 
 

 
    </form> 
 

 
</div> 
 
<div class="clearfix"> 
 
</div> 
 
<IMG class="Wrap1" SRC="cookie.gif" alt="cookie"> 
 
<IMG class="Wrap2" SRC="cookie.gif" alt="cookie2"> 
 

 

 
</body> 
 

 

 

 
</html>

+0

我只是做了斯科特·马库斯 – Joe

回答

2

有很多事情你的代码错误,但最大的是你的验证测试,每个遵循相同的结构:

if(FirstName !== "Cherry", "Micheal", "Sandra", "Cookie") 

你可以用”使用逗号分隔的值列表对t检验firstName。每个人都必须单独进行测试,你必须使用它们之间的复合逻辑运算符:

if(FirstName !== "Cherry" && FirstName !== "Micheal" && 
    FirstName !== "Sandra" && FirstName !== "Cookie") 

还使用标准按钮,而不是一个提交按钮,这可能会导致所有的验证,在某些情况下可以绕过当ENTER键被击中时。始终使用提交按钮并在submit事件中验证。

请参阅我重新组织和重新组织的代码内嵌评论解决方案。

的堆栈溢出片断环境(下)不与形式 工作(因为它的沙盒),但相同的代码可以运行here

// W3C DOM Event model instead of node event properties: 
 
window.addEventListener("DOMContentLoaded", function() { 
 
    
 
    // Since we're now using the submit event, we hook into that event: 
 
    // Use camelCase for JavaScript identifiers 
 
    var form = getElem("cookieForm"); 
 
    form.addEventListener("submit", validate); \t 
 
    
 
    getElem("emailAddress").focus(); 
 
    
 
    // Opening curly braces should appear on the same line as the declaration they open 
 
    // Dollar signs are legal identifiers, but usually denote libraries (like JQuery) and 
 
    // can be confusing if you are not using those libraries. 
 
    function getElem (id) { 
 
    return document.getElementById(id); 
 
    } 
 

 
    function validate(evt) { 
 
    var inputs = document.querySelectorAll(".validate"); 
 
    
 
    // It's better logic to assume false, which avoids "false positives" 
 
    var isValid = false; 
 
    
 
    // Loop through the fields that need validation 
 
    for (var i = 0; i < inputs.length; ++i){ 
 
    
 
     var message = ""; // This is the potential error message 
 
     
 
     // Validate the input according to its id: 
 
     switch (inputs[i].id) { 
 
      case "firstName" : 
 
      // You can't check a single value against a comma-separated list, you have to check 
 
      // it against each value you are interested in: 
 
      isValid = (inputs[i].value !== "Cherry" && inputs[i].value !== "Micheal" && 
 
         inputs[i].value !== "Sandra" && inputs[i].value !== "Cookie") ? false : true; 
 
      message = (!isValid) ? "This person does not exist." : ""; 
 
      break; 
 
      case "orderNumber" : 
 
      // Remember, HTML form fields always return strings, not numbers 
 
      isValid = (inputs[i].value !== "3134" && inputs[i].value !== "4234" && 
 
         inputs[i].value !== "9234" && inputs[i].value !== "3566") ? false : true; 
 
      message = (!isValid) ? "Invalid Order Number." : ""; 
 
      break; 
 
      case "dateOfOrder" : 
 
      isValid = (inputs[i].value !=='12-07-23' && inputs[i].value !== '15-04-24' && 
 
         inputs[i].value !== '16-02-01' && inputs[i].value !== '14-01-12') ? false : true; 
 
      message = (!isValid) ? "Date doesn't exist in system" : ""; 
 
      break; 
 
      case "emailAddress" : 
 
      isValid = (inputs[i].value != "[email protected]" && 
 
         inputs[i].value !== "[email protected]" && 
 
         inputs[i].value !== "[email protected]" && 
 
         inputs[i].value !== "[email protected]") ? false : true; 
 
      message = (!isValid) ? "The email doesn't exist" : ""; 
 
      break;   
 
     } 
 
     
 
     // Update the UI with the correct message: 
 
     inputs[i].nextElementSibling.textContent = message; 
 
    } 
 
    
 
    if(!isValid) { 
 
\t  // cancel the submission if we're invalid 
 
\t  evt.preventDefault(); // Cancel the form's submission 
 
     evt.stopPropagation(); // Don't bubble the event 
 
    } 
 
    } 
 
    
 
});
body{ 
 
     background-color:#FBFBE8; 
 
} 
 

 
/* Tells HTML5 to find the font-type-face that my OS has and then use that for heading 1 
 
    and also centers the first heading */ 
 

 
h1{ 
 
    font-family:Arial, Helvetica, sans-serif; 
 
    text-align:center;   
 
} 
 

 

 
/* Tells HTML5 to use any of the font-types for my first paragraph in HTML source file 
 
    if one is not available. Also clears some white space 
 
    from the left margin of the paragraph and finally tells it to give that paragraph 
 
    a size of 20 pixels. */ 
 

 
p { 
 
    font-family:Arial, Helvetica, sans-serif; 
 
    padding: 20px; 
 
    font-size:20px; 
 
} 
 

 
label{ 
 
\t float: left; 
 
\t width: 11em; 
 
\t text-align: right; 
 
     font-family:Arial, Helvetica, sans-serif; 
 
     color:#800000; 
 

 
} 
 
    
 
input{ 
 
    \t margin-left: 1em; 
 
    \t margin-bottom:.5em; 
 
} 
 

 

 

 
span { 
 
    \t color: red; 
 
} 
 

 
.field_set_1{ 
 
       border-color: purple; 
 
       border-style: solid; 
 
} 
 

 
#form_submission{ background-color:black; color:white; } 
 

 
legend{ 
 
    font-family:Arial, Helvetica, sans-serif; 
 
    color:blue; 
 
} 
 

 
/* All of the classes are just for positioning and floating the four 
 
same images around the form input information */ 
 

 
.Wrap1{ 
 
      float:right; 
 
      margin:40px; 
 
      width:200px; 
 
      height:200px; 
 
} 
 
.Wrap2{ 
 
      float:left; 
 
      margin:40px; 
 
      width:200px; 
 
      height:200px; 
 
} 
 

 
.clearfix { 
 
    clear: both; 
 
}
<form id="cookieForm" name="cookieForm" action="submit form.html" method="get"> 
 

 
    <fieldset class="field_set_1"> 
 
    <!-- Below sets the title of the form--> 
 
    <legend>Customer Order Form Information:</legend> 
 

 

 
    <!-- Creates the first left label to specify what should be placed in the text box 
 
     the the right of the label. The rest below does the same.--> 
 
    
 
    <label for="firstName">First Name:</label> 
 
    <input type="text" id="firstName" name="firstName" class="validate"> 
 
    <span id="firstname_error">*</span><br> 
 

 
    <label for="orderNumber">Order Number:</label> 
 
    <input type="text" id="orderNumber" name="orderNumber" class="validate"> 
 
    <span id="orderNumber_error">*</span><br> 
 
    
 
    <label for="dateOfOrder">Date of Order:</label> 
 
    <input type="text" id="dateOfOrder" name="dateOfOrder" class="validate"> 
 
    <span id="dateOfOrder_error">*</span><br> 
 

 
    <label for="emailAddress">Email Address:</label> 
 
    <input type="text" id="emailAddress" name="emailAddress" class="validate"> 
 
    <span id="emailAddress_error">*</span><br> 
 

 
    <label>&nbsp;</label> 
 
    
 
    <!-- Always use a "submit" button to initiate form submission, even 
 
     if there will be form validation         --> 
 
    <input type="submit" id="form_submission" value="Submit this Form"> 
 
    </fieldset> 
 

 
</form>

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