Validate HTML form with JQuery
Can someone see where I'm going wrong with this form validation? I was using an example I found online and it does not work for me.
I want to validated the input fields with the jquery before passing it on to the server side script. It supposed to print error message next to the field where the user is missing an input.
Here's the code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Register</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-5">
<link rel="stylesheet" type="text/css" href="style1.css" />
<link rel="stylesheet" type="text/css" href="forms.css" />
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/validate/jquery.validate.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#registerform").validate({
rules: {
username: "required",
firstname: "required",
email: {// compound rule
required: true,
passwd: true,
email: true,
},
username:{
username: true
},
url: {
url: true
},
comment: {
required: true
}
},
messages: {
comment: "Please enter a comment."
}
});
});
</script>
<style type="text/css">
label { width: 10em; float: left; }
label.error { float: none; color: red; padding-left: .5em; vertical-align: top; }
p { clear: both; }
.submit { margin-left: 12em; }
em { font-weight: bold; padding-right: 1em; vertical-align: top; }
</style>
</head>
<body>
Please register below
<p />
<form action=" " id="registerform" method="POST">
<table cellspacing="9">
<tr><td><b>Username:</b></td><td><input type="text" name="username" size="30"></td></tr>
<tr><td><b>First name:</b></td><td><input type="text" name="firstname" size="30"/></td></tr>
<tr><td><b>Surname:</b> </td><td><input type="text" name="lastname" size="30"/></td></tr>
<tr><td><b>Email : </b> </td><td><input type="text" name="email" size="30"/></td></td></tr>
<tr><td><b>Password :</b> </td><td><input type="password" name="passwd" size="30"/></td></tr>
<tr><td><b>Telephpone:</b></td><td><input type="text" name="telephone" size="30"/></td></td></tr>
<tr><td><b>House No:</b></td><td><input type="text" name="ad1" size="30"/></td></td></tr>
<tr><td><b>Street Name:</b></td><td><input type="text" name="street" size="30"/></td></tr>
<tr><td><b>Town/ City:</b></td><td><input type="text" name="town" size="30"/></td></tr>
<tr><td><b>Post code:</b></td><td><input type="text" name="pcode" size="30"/></td></tr>
</table>
<p />
<input class="submit" type="submit" value="Sign Up!" />
<input type="reset" value ="Clear Form" onClick="return confirm('Are you sure you want to reset the form?')">
</form>
</body>
Here's the code the original code that I got from a website somewhere and it works. But I can't seem to use the example in my code.
<html>
<head>
<title>Simple Form Validation</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/validate开发者_C百科/jquery.validate.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#form2").validate({
rules: {
name: "required",// simple rule, converted to {required:true}
email: {// compound rule
required: true,
email: true
},
url: {
url: true
},
comment: {
required: true
}
},
messages: {
comment: "Please enter a comment."
}
});
});
</script>
</head>
<body>
<form id="form2" method="post" action=""><br />
Name * <input type="text" name="name" /> <br />
E-Mail *<input type="text" name="email" /> <br />
URL <input type="text" name="url" /> <br />
Your comment * <textarea name="comment" ></textarea> <br />
<input class="submit" type="submit" value="Submit">
</form>
</body>
</html>
Update: Thanks to @Usman it's now working. One more question though, is it possible to change the default error message instead of the 'This field is required' ?
Thanks
Remove non-existing fields from validation rule, url etc. I have removed these and its working. Working http://jsfiddle.net/xyRRU/ , check the code below:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Register</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-5">
<link rel="stylesheet" type="text/css" href="style1.css" />
<link rel="stylesheet" type="text/css" href="forms.css" />
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/validate/jquery.validate.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#registerform").validate({
messages: {
firstname: "Please enter your firstname",
username: {
required: "Please enter a username",
minlength: "Your username must consist of at least 2 characters"
},
email: "Please enter a valid email address"
},
rules: {
username: "required",
firstname: "required",
email: {// compound rule
required: true,
passwd: true,
email: true,
},
},
});
});
</script>
<style type="text/css">
label { width: 10em; float: left; }
label.error { float: none; color: red; padding-left: .5em; vertical-align: top; }
p { clear: both; }
.submit { margin-left: 12em; }
em { font-weight: bold; padding-right: 1em; vertical-align: top; }
</style>
</head>
<body>
Please register below
<p />
<form action=" " id="registerform" method="POST">
<table cellspacing="9">
<tr><td><b>Username:</b></td><td><input type="text" name="username" size="30"></td></tr>
<tr><td><b>First name:</b></td><td><input type="text" name="firstname" size="30"/></td></tr>
<tr><td><b>Surname:</b> </td><td><input type="text" name="lastname" size="30"/></td></tr>
<tr><td><b>Email : </b> </td><td><input type="text" name="email" size="30"/></td></td></tr>
<tr><td><b>Password :</b> </td><td><input type="password" name="passwd" size="30"/></td></tr>
<tr><td><b>Telephpone:</b></td><td><input type="text" name="telephone" size="30"/></td></td></tr>
<tr><td><b>House No:</b></td><td><input type="text" name="ad1" size="30"/></td></td></tr>
<tr><td><b>Street Name:</b></td><td><input type="text" name="street" size="30"/></td></tr>
<tr><td><b>Town/ City:</b></td><td><input type="text" name="town" size="30"/></td></tr>
<tr><td><b>Post code:</b></td><td><input type="text" name="pcode" size="30"/></td></tr>
</table>
<p />
<input class="submit" type="submit" value="Sign Up!" />
<input type="reset" value ="Clear Form" onClick="return confirm('Are you sure you want to reset the form?')">
</form>
</body>
Check your syntax - you have a comma left in here:
rules: {
username: "required",
firstname: "required",
email: {// compound rule
required: true,
passwd: true,
email: true**,**
},
Remove that and see how you get on.
You're getting JavaScript errors. Run this fiddle to see, http://jsfiddle.net/nickyt/Sjvh2 . It looks like the validation plug-in is throwing errors on line 493. Start debugging ;)
Your link to jquery.validate.js is returning a 403 Forbidden error, which means you're not actually importing the plugin.
Try this link instead: http://view.jquery.com/trunk/plugins/validate/jquery.validate.js
<script type="text/javascript" src="http://view.jquery.com/trunk/plugins/validate/jquery.validate.js"></script>
Better still, point to a local copy of the file.
Also, do check that you're not getting any JS errors using firebug.
Edit : This change alone will not solve your problem, but you really shouldn't be hotlinking the script from dev.jquery.com. See related answer, and Hotlinking to be disabled on January 31, 2011.
加载中,请稍侯......
精彩评论