檢查表單驗證是否為真

Question

您好我有一個表單，我想通過表單驗證運行，然后提交。 如何檢查以下函數是否返回true以了解所有內容是否已經過驗證然后提交？

我創造了一個小提琴來測試

http://jsfiddle.net/WHGq2/

修改后的代碼

     <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
     <script type="text/javascript" src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.min.js"></script>

    <script type="text/javascript">
            $(function(){
        $("#form").validate({
            debug: false,
            rules: {
                name: "required",
                email: {
                    required: true,
                    email: true
                        },
                phone: {
                    equired: true,
                    phone: true
                        }
                    },
            messages: {
                name: "Please let us know who you are.",
                email: "A valid email will help us get in touch with you.",
                phone: "Please provide a valid phone number.",
            }
        })  


    $('#form').submit(function(e){
        // Stop the form actually posting
        e.preventDefault();




        // I want to be able to do the check here if the form has passed validation
        if( $(this).valid() ) {
        // Stop the form actually posting

        // Send the request
        $.post('/submit.php', {
            name: $('#name').val(),
            email: $('#email').val(),
            phone: $('#phone').val(),
            message: $('#message').val()
        }, function(d){
            alert("Thank you for submitting your request someone will contact your shortly.");
        });
        }
    });
});
    </script>

Answer 1

您可以調用jquery驗證的valid（）方法。 喜歡

if($('#form').valid())

實際上你可以在加載html頁面時聲明validate函數，並在提交時檢查它是否有效

$(document).ready(function(){

$('#form').validate(rules...messages...);

如果使用規則和消息： -

  rules: {
            name: {
               required: true  
            },
            email: {
                required: true,
                email: true
                    },
            phone: {
                required: true,
                phone: true                       }
                },
        messages: {
            name: { required : "Please let us know who you are."},
           email: {required : "A valid email will help us get in touch with you.",email : "A valid email will help us get in touch with you."},
            phone: {required:"Please provide a valid phone number.",phone:"Please provide a valid phone number."}
        }

這是一個很好的做法，如果是電話號碼，你需要拼寫錯誤

$('#form').submit(function(evt) {
    evt.preventDefault();

    .....

    if( $('#form').valid() ) {
       //submit the form via ajax
    } else {
       //show errors
    }
 });

});

我想你知道要添加每個輸入字段的name屬性： -

 <input type="text" name="email" />

Answer 2

請注意， required在phone規則寫equired並可能造成你的大部分問題 。 參見附帶的演示。

$(function() {

    $('#form').validate(.......);

    $('#form').submit(function(e) {
        e.preventDefault();

        .....

        if( $(this).valid() ) {
           //submit the form via ajax or otherwise
        } else {
           //report errors
        }
    });

});

JSFIDDLE DEMO

Answer 3

您可以使用插件的valid方法，如下所示。

$('#form').validate({...});

if ($('#form').valid()) {
    // do your thing
}

這里是文檔http://jqueryvalidation.org/valid

Answer 4

更新了您的代碼，添加了submitHandler ，Callback以在表單有效時處理實際提交。

    <script type="text/javascript">
            $(function(){
    $('#form').submit(function(e){

        $("#form").validate({
            debug: false,
            rules: {
                name: "required",
                email: {
                    required: true,
                    email: true
                        },
                phone: {
                    equired: true,
                    phone: true
                        }
                    },
            messages: {
                name: "Please let us know who you are.",
                email: "A valid email will help us get in touch with you.",
                phone: "Please provide a valid phone number.",
            },
            submitHandler: function() {  
                      // Stop the form actually posting
                       e.preventDefault();

                     // Send the request
                   $.post('/submit.php', {
                   name: $('#name').val(),
                   email: $('#email').val(),
                   phone: $('#phone').val(),
                   message: $('#message').val()
                   }, function(d){
                        alert("Thank you for submitting your request someone will contact your shortly.");
                   }); 
            }
    });
});
});
    </script>