Javascript 使用jQuery验证验证多个文本框日期

我正在尝试编写一个自定义方法来验证日期。但是，日期存在于三个文本框中。此外，此日期可能有多个实例

    <div class="customDate"> 
        <input class="month" id="dob_Month" maxlength="2" name="dob.Month" type="text"  /> 
        /
        <input class="day" id="dob_Day" maxlength="2" name="dob.Day" type="text" /> 
        /
        <input class="year" id="dob_Year" maxlength="4" name="dob.Year" type="text"  /> 
    </div> 

不过，验证功能没有启动。我错过了什么？还有，有没有更好的方法来做到这一点

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注意：我已经删除了实际验证逻辑的功能。我只需要知道如何启动验证方法

我非常确定验证插件只支持验证输入，而不支持任意DOM元素。elements功能过滤掉任何非元素以及提交、重置、图像按钮和禁用的输入

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您需要做的是为月份、日期和年份设置验证器。为了执行正确的验证逻辑，月和日需要相互引用对方的值。

在验证之前，我会尝试在表单提交上触发一个事件，将各个日/月/年输入的值附加到一个单独的隐藏输入中，然后验证隐藏的输入。

添加一个隐藏字段

<input id="month" maxlength="2" name="month" type="text"  /> 
<input id="day" maxlength="2" name="day" type="text" /> 
<input id="year" maxlength="4" name="year" type="text"  /> 

<input id="birthday"  name="birthday" type="text"  /> 

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然后验证隐藏的值。

我已经按照 并作出相应的修订

• 不过可能有点过分：）

html代码 JavaScript代码

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是否有任何方式来汇总错误…这样我就不需要月份，日期，年份了。我想我可以这样做：如果月份无效，跳过日期和年份的验证？这非常有用，我在隐藏字段中添加了一个minlength以确保所有元素都已被选中。您可能需要在该隐藏字段上触发keyup事件，以便一切正常。由于某种原因，仅对隐藏字段执行val（…）时，不会触发验证。。因此将其更改为：$（'生日'）.val（$（'日'）.val（）+'/'+$（'月'）.val（）+'/'+$（'年'）.val（））.trigger（'keyup'）；

<input id="month" maxlength="2" name="month" type="text"  /> 
<input id="day" maxlength="2" name="day" type="text" /> 
<input id="year" maxlength="4" name="year" type="text"  /> 

<input id="birthday"  name="birthday" type="text"  /> 

$('#day,#month,#year').change(function() {  
  $('#birthday').val($('#day').val()+'/'+ $('#month').val()+'/'+ $('#year').val());
});  

<div class="whatever">

    <!-- dob html -->
    <div id="dobdate">
    <select name="dobday" class="dateRequired" id="dobday">
             <option value="">Day</option>
         <option value="1">1</option>
    </select>

    <select name="dobmonth" class="dateRequired" id="dobmonth">
         <option value="">Month</option>
         <option value="January">January</option>
    </select>

    <select name="dobyear" class="dateRequired" id="dobyear">
             <option value="">Year</option>
         <option value="2010">2010</option>
    </select>
    <div class="errorContainer">&nbsp;</div>
    </div>

    <br />

    <div id="joinedate">
    <!-- date joined html -->
    <select name="joinedday" class="dateRequired" id="joinedday">
           <option value="">Day</option>
           <option value="1">1</option>
    </select>

    <select name="joinedmonth" class="dateRequired" id="joinedmonth">
         <option value="">Month</option>
         <option value="January">January</option>
    </select>

    <select name="joinedyear" class="dateRequired" id="joinedyear">
            <option value="">Year</option>
        <option value="2010">2010</option>
    </select>
    <div class="errorContainer">&nbsp;</div>
    </div>
        <br />
    <input name="submit" type="submit" value="Submit" class="submit" title="Submit"/>
</div>

 // 1. add a custom validation method

 $.validator.addMethod("CheckDates", function(i,element) 
 {
      // function with date logic to return whether this is actually a valid date - you'll need to create this to return a true/false result
      return IsValidDate(element);

 }, "Please enter a correct date");

 // 2. add a class rule to assign the validation method to the relevent fields - this sets the fields with class name of "dateRequired" to be required and use the method youve set up above

 $.validator.addClassRules({
     dateRequired: { required:true, CheckDates:true}
 });

// 3. add a validation group (consists of the fields you want to validate)

$("#myForm").validate(
{
    submitHandler: function() 
    {
         alert("submitted!");
    },
    groups: 
    {
                dob: "dobyear dobmonth dobday", joined : "joinedyear joinedmonth joinedday"
    },
    messages: { dob : " ", joined : " " // sets the invidual errors to nothing so that only one message is displayed for each drop down group 
    },
    errorPlacement: function(error, element) 
    {
       element.parent().children(".errorContainer").append(error);
    }
});

function IsValidDate(_element)
{
    // just a hack function to take an element, get the drop down fields within it with a particular class name ending with day /month/ year and perform a basic date time test
    var $dateFields =  $("#" + _element.id).parent();

    day = $dateFields.children(".dateRequired:[name$='day']");
    month = $dateFields.children(".dateRequired:[name$='month']");
    year = $dateFields.children(".dateRequired:[name$='year']");

    var $newDate = month.val() + " " + day.val() + " " + year.val();

    var scratch = new Date($newDate );

    if (scratch.toString() == "NaN" || scratch.toString() == "Invalid Date") 
    {
        return false;
    } else {
        return true;
    }
}