使用javascript验证。 [英] validation using javascript.

问题描述

您好，我的网页上有


我有一个注册表格可以注册。



我需要在提交按钮单击时使用javascript验证这些文本框。



总共我有6个文本框，我需要使用Javascript在提交按钮上单击验证。







TxtUserName ----必填字段



TxtPassword ---必填字段



TxtEmailAddress ----必须是电子邮件地址，且必须是有效的[e-mail]



TxtRetypeEmailAddress ---重新输入电子邮件地址必须是必填项并且必须是有效的[e-mail]并且必须与第一个电子邮件地址相匹配



TxtLocation - 必填字段



TxtMobileNo ---必填提交且仅接受号码且仅限10位数。





最后，我有提交按钮。

提交按钮



请你能帮我吗我，如何使用javascript验证所有这些。



提前感谢.....

解决方案

参考此链接



http：//www.w3schools。 com / js / js_form_validation.asp [ ^ ]





http：/ /www.tutorialspoint.com/javascript/javascript_form_validations.htm [ ^ ]

一些可以帮助你的链接



使用样本注册表单进行JavaScript表单验证 [ ^ ]



使用注册表单进行JavaScript字段级表单验证 [ ^ ] < br $>


简单登记表对于具有验证的员工 [ ^ ]



JavaScript：表单验证 [ ^ ]

 <  表格   名称  =  myForm    action   =  demo_form.asp    onsubmit   =  return validateForm（）   方法  =  post  >  
名字：<   input     type   =  text    name   =  fname >  
 <   input     type   =  submit    value   = 提交 >  
 <   / form  >  

< script type =   text / javascript> 
  function  validateForm（）
 {
  var  x =  document  .forms [  myForm] [< span class =code-string>  fname]。value; 
  if （x ==  null  || x ==  ）
 {
 alert（ 必须填写名字）; 
  return   false ; 
} 
} 
< / script> 
 < /   head  >  

Hi frnds,

on my webpage i have a registration form to register.

I need to validate these textboxes using javascript on submit button click.

total i have 6 textboxes, i need to validate on submit button click using Javascript.



TxtUserName ---- Required field

TxtPassword --- Required Field

TxtEmailAddress ---- Email address must be Required and it must be Valid as [e-mail]

TxtRetypeEmailAddress --- Retype Email address must be Required and it must be Valid as [e-mail] & it must match the First Email Address

TxtLocation -- Required Field

TxtMobileNo --- Required Filed & only Numbers are accepted & only 10 digits.


and finally, i have submit button.
SUBMIT BUTTON

Please can you help me, how to validate all these using javascript.

thanks in advance.....

解决方案

refer this links

http://www.w3schools.com/js/js_form_validation.asp[^]


http://www.tutorialspoint.com/javascript/javascript_form_validations.htm[^]

some more links which may help you

JavaScript Form Validation using a Sample Registration Form [^]

JavaScript Field Level Form Validation using a registration form [^]

Simple Registration Form For Employee With Validation[^]

JavaScript: Form Validation[^]

<form name="myForm" action="demo_form.asp" onsubmit="return validateForm()" method="post">
First name: <input type="text" name="fname">
<input type="submit" value="Submit">
</form>

<script type="text/javascript">
function validateForm()
{
var x=document.forms["myForm"]["fname"].value;
if (x==null || x=="")
  {
  alert("First name must be filled out");
  return false;
  }
}
</script>
</head>

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