>我正在尝试构建一个注册脚本,需要验证或必须取消所有表单项。我看过很多论坛和很多答案,但我看不出我的答案有什么不同。.HTML
<form onSubmit='checkAll()' method='post' action='mydestination.php'>
<table>
<tr>
<td><input type='text' name='username' id='txtUsername' class='textboxLargeStyle' placeholder='Username' onChange='checkUsername("false")'/></td>
</tr>
<tr>
<td><input type='text' name='email' id='txtEmail' class='textboxLargeStyle' placeholder='Email Address' onChange='checkEmail()'/></td>
</tr>
<tr>
<td><input type='password' id='pwd1' name='password' class='textboxLargeStyle' placeholder='Password' onkeyup='checkPassword()'/></td>
</tr>
<tr>
<td><input type='password' id='pwd2' name='password2' class='textboxLargeStyle' placeholder='Re-type Password' onkeyup='checkPasswordMatches()'/></td>
</tr>
<tr>
<td><input type='submit' class='buttonLargeStyle' value='Sign Up'/></td>
</tr>
<tr>
<td colspan='2'><small id='Error'>Ensure you have all ticks before submitting! Hover over a cross to see the error.</small></td>
</tr>
</table>
</form>
JAVASCRIPT
function checkAll()
{
if(usernameOK == true)
{
if(emailOK == true)
{
if(passwordOK == true)
{
return true;
}
}
}
$('#Error').fadeIn(100);
return false;
}
当我单击提交并且不符合项目时,表单仍然提交。
您必须
从onsubmit
处理程序返回checkAll
返回的false
值
<form onSubmit='return checkAll()' method='post' action='mydestination.php'>
function checkAll(e)
{
e.stopPropogation(); //Stops bubbling
e.preventDefault(); //prevents anything else that would happen from the click (submit)
if(usernameOK && (emailOK && passwordOK) {
e.currentTarget.submit();//Submits form
}
$('#Error').fadeIn(100);
return false;
}