<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Bootstrap 101 Template</title>
<link href="../bootstrap/css/bootstrap.min.css" rel="stylesheet">
<!--[if lt IE 9]>
<script src="../bootstrap/html5shiv.min.bootstrap"></script>
<script src="../bootstrap/respond.min.bootstrap"></script>
<![endif]-->
<script src="../scripts/jquery-1.12.2.min.js"></script>
<script src="../bootstrap/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-sm-6 col-sm-offset-3">
<h2 class="page-header">注册</h2>
<form class="form-horizontal" action="bootstrap表单带验证.html" method="get">
<div class="form-group has-feedback">
<label for="email" class="col-sm-2 control-label">Email </label>
<div class="col-sm-10">
<input type="email" class="form-control" id="email" placeholder="Email" required>
<span class=""></span>
</div>
</div>
<div class="form-group has-feedback">
<label for="username" class="col-sm-2 control-label">username</label>
<div class="col-sm-10">
<input type="text" class="form-control" id="username" placeholder="username" required>
<span class=""></span>
</div>
</div>
<div class="form-group has-feedback">
<label for="password" class="col-sm-2 control-label">password</label>
<div class="col-sm-10">
<input type="password" class="form-control" id="password" placeholder="password" required>
<span class=""></span>
</div>
</div>
<p class="text-right">
<button id="btnSubmit" type="submit" class="btn btn-primary">submit</button>
<button type="reset" class="btn btn-danger">reset</button>
</p>
</form>
</div>
</div>
</div>
<script>
function checkInput(txt){
if(txt.val()==""){
// alert(txt.parent().parent().html()); alert html
txt.parent().parent() /*找到父类 先删除样式，再添加样式*/
.removeClass()
.addClass("form-group has-error has-feedback");
txt.next().removeClass()
.addClass("glyphicon glyphicon-remove form-control-feedback");
return false;
}else{
txt.parent().parent().removeClass().addClass("form-group has-success has-feedback");
txt.next().removeClass().addClass("glyphicon glyphicon-ok form-control-feedback");
return true;
}
}
function checkBind(id){
$(id).bind("blur", function () {
checkInput(id);
});
}
$().ready(function () {
checkBind($("#email"));
checkBind($("#username"));
checkBind($("#password"));
/* $("#email").bind("change", function () {
checkInput($("email"));
});*/
/* $("#email").change(function () {checkInput($("#email"));});
$("#username").change(function () {checkInput($("#username"));});
$("#password").change(function () {checkInput($("#password"));});*/
$("#btnSubmit").bind('click', function () {
if(checkInput($("#email"))&&checkInput($("#username"))&&checkInput($("#password"))){
return true;
}
return false;
})
});
</script>
</body>
</html>
