我正在应用Javascript验证,当表单验证失败时为什么
提交。我在这里使用以下代码。
var FormValidation = function () {
var isbnForm = function() {
// for more info visit the official plugin documentation:
// http://docs.jquery.com/Plugins/Validation
var form1 = $('#isbnForm');
var error1 = $('.alert-danger', form1);
var success1 = $('.alert-success', form1);
form1.validate({
errorElement: 'span', //default input error message container
errorClass: 'help-block help-block-error', // default input error message class
focusInvalid: false, // do not focus the last invalid input
ignore: "", // validate all fields including form hidden input
messages: {
select_multi: {
maxlength: jQuery.validator.format("Max {0} items allowed for selection"),
minlength: jQuery.validator.format("At least {0} items must be selected")
}
},
rules: {
isbn: {
required: function(){
var isbn = $("#isbn").val();
if(isbn){
var resultData10 = isValidIsbn10 (isbn);
if(resultData10 != 1){
$(".errorData").show();
$(".errorData").html("<p style='color:#A94442;'>ISBN number is not valid</p>");
return true;
}
else{
$(".errorData").hide();
return false;
}
}
else{
$(".errorData").hide();
return true;
}
function isValidIsbn10 (isbn) {
isbn = isbn.replace(/[^\dX]/gi, '');
if(isbn.length != 10){
return false;
}
var chars = isbn.split('');
if(chars[9].toUpperCase() == 'X'){
chars[9] = 10;
}
var sum = 0;
for (var i = 0; i < chars.length; i++) {
sum += ((10-i) * parseInt(chars[i]));
};
return (0 === (sum % 11)) ? 1 : false;
}
}
},
name: {
required: true
},
},
invalidHandler: function (event, validator) { //display error alert on form submit
success1.hide();
error1.show();
Metronic.scrollTo(error1, -200);
},
highlight: function (element) { // hightlight error inputs
$(element)
.closest('.form-group').addClass('has-error'); // set error class to the control group
},
unhighlight: function (element) { // revert the change done by hightlight
$(element)
.closest('.form-group').removeClass('has-error'); // set error class to the control group
},
success: function (label) {
label
.closest('.form-group').removeClass('has-error'); // set success class to the control group
},
submitHandler: function (event,form) {
success1.show();
error1.hide();
form.submit();
}
});
}
return {
//main function to initiate the module
init: function () {
isbnForm();
}
};
}();
当我输入错误的值到ISBN输入类型时,将显示错误消息但是在提交该表单后。我希望如果值错误则不应提交表单。
答案 0 :(得分:1)
您的isbn: required
规则仅确定是否需要isbn。如果您输入的isbn无效,isValidIsbn10()
将返回false
,您的required
规则将返回false
。所以这意味着不需要isbn,就是这样。这并不能阻止提交表格。
您想要的是仅在isbn有效时验证的规则。你需要custom validation method才能做到这一点。