我有一些验证代码用于验证某些表单条目,我尝试使用onsubmit命令调用它们,但是当我使用表单时,似乎只有行中调用的第一个函数才有效,并且一旦成功验证了其余的功能被忽略,表格只是提交?这是我的代码:
<script>
function validateFamily()
{
var family=document.getElementById('family');
if (family.value=="")
{
alert("Family name must be filled out");
return false;
}
else if (document.getElementById('family').value.length > 35)
{
alert("Family name cannot be more than 35 characters");
return false;
}
}
function validateGiven()
{
var given=document.getElementById('given');
if (given.value=="")
{
alert("Given name must be filled out");
return false;
}
else if (document.getElementById('given').value.length > 35)
{
alert("Given name cannot be more than 35 characters");
return false;
}
}
function validDate()
{
var chkdate = document.getElementById("dob").value
if(document.getElementById("dob").value == "")
{
alert("Please enter Date of Birth")
return false;
}
else if(!chkdate.match(/^(0[1-9]|[12][0-9]|3[01])[\- \/.](?:(0[1-9]|1[012])[\- \/.](200)[0-4]{1})$/))
{
alert('The entered date is an incorrect format');
return false;
}
}
function validateMaleFemale()
{
var radios = document.getElementsByName('malefemale');
for (var i = 0; i < radios.length; i++)
{
if (radios[i].checked)
{
return true;
}
};
alert ('You must choose male or female');
return false;
}
function validateAddress()
{
var address = document.getElementById('address');
var stringa = document.getElementById('address').value;
if (address.value=="")
{
alert("Address must be filled out");
return false;
}
else if (document.getElementById('address').value.length > 150)
{
alert("Address cannot be more than 150 characters");
return false;
}
else if (/[^a-zA-Z0-9\-\/]/.test( stringa ) )
{
alert("Address can only contain alphanumeric, hypehns(-) and backslash's(/)")
return false;
}
}
function validateParent()
{
var parent = document.getElementById('parenta');
var stringb = document.getElementById('parenta').value;
if (parent.value=="")
{
alert("Parent/Carer name must be filled out");
return false;
}
else if (document.getElementById('parenta').value.length > 60)
{
alert("Parent/Carer name can not be more than 60 characters");
return false;
}
else if (/[^a-zA-Z\-\/]/.test( stringb ) )
{
alert("Parent/Carer can only contain alphabetic and hypehns(-)")
return false;
}
}
function validateWork()
{
var num1 = document.getElementById('workno').value;
if (num1 !== "" && !num1.match(/\(\d{2}\)\d{8}/))
{
alert('That is not correct telephone number format');
return false;
}
}
function validateHome()
{
var num2 = document.getElementById('homeno').value;
if (num2 !== "" && !num2.match(/\(\d{2}\)\d{8}/))
{
alert('That is not correct telephone number format');
return false;
}
}
function validateMob()
{
var num3 = document.getElementById('mob').value;
if(num3 == "")
{
alert('Please enter a mobile number');
return false;
}
else if (num3 !== "" && !num3.match(/\(\d{3}\)\d{8}/))
{
alert('That is not correct mobile number format');
return false;
}
}
</script>
<form name="eoiform" method="POST" action="<?php echo $_SERVER["PHP_SELF"];?>" id="eoi" onsubmit="return !!(validateFamily() && validDate() && validateAddress() && validateParent() && validateMaleFemale() && validateMob() && validateHome() && validateWork());">
因此,例如,函数validateFamily()
将正常工作并在字段为空时提醒我,但在将某些内容输入字段后,其他函数将被忽略并且表单提交。任何人都可以告诉我为什么会发生这种情况或如何解决它?
答案 0 :(得分:1)
编辑 验证通过时,默认情况下,某些验证方法不会返回值:
例如:
function validateFamily()
{
var family=document.getElementById('family');
if (family.value=="")
{
alert("Family name must be filled out");
return false;
}
else if (document.getElementById('family').value.length > 35)
{
alert("Family name cannot be more than 35 characters");
return false;
}
return true;// Add this to all validate Methods!
}
在所有validateXxx()方法中添加默认返回值。如果有效,请告诉我。