遍历bean列表并验证javascript中的数据

Question

My form contains input fields which will be validated against minimum and maximum values while submitting.The input fields will be displayed on the screen using list iteration.

<c:forEach var="Item" items="${listBean.nameList}" varStatus="status">
    <input type="number"name="nameList<c:outvalue='[${status.index}]'/>.initialWeight" onchange="checkOnChange(this,'<c:out value='${Item.personId}'/>','<c:out value='${Item.minWeight}'/>','<c:out value='${Item.maxWeight}'/>','<c:out value='[${status.index}]'/>')">
        <br><br>
    <input type="number" name="nameList<c:out value='[${status.index}]'/>.finalWeight" onchange="checkOnChange(this,'<c:out value='${Item.personId}'/>','<c:out value='${Item.minWeight}'/>','<c:out value='${Item.maxWeight}'/>','<c:out value='[${status.index}]'/>')">
        <br><br>
    <input type="text" class="formtext" name="nameList<c:out value='[${status.index}]'/>.Reason" id ="reason<c:out value='[${status.index}]'/>" value="" maxlength="255" >
        <br><br>
        <input type="submit" value="submit" id="submit" />

 </c:forEach>

So while submitting the form , i have all the user entered values which will be stored in the bean and also the min/ max values.i need to validate the form and prevent the user from submitting the form if any of the entered value is not within the min / max values.

So i am a bit of confused on how to do this in Java script ?

thanks for your suggestions and time ..

JSFIDDLE

Answer 1

I would say give an id

<form id="frmDetails">
    <c:forEach var="Item" items="${listBean.nameList}" varStatus="status">
        <input type="number"name="nameList<c:outvalue='[${status.index}]'/>.initialWeight" onchange="checkOnChange(this,'<c:out value='${Item.personId}'/>','<c:out value='${Item.minWeight}'/>','<c:out value='${Item.maxWeight}'/>','<c:out value='[${status.index}]'/>')">
            <br><br>
        <input type="number" name="nameList<c:out value='[${status.index}]'/>.finalWeight" onchange="checkOnChange(this,'<c:out value='${Item.personId}'/>','<c:out value='${Item.minWeight}'/>','<c:out value='${Item.maxWeight}'/>','<c:out value='[${status.index}]'/>')">
            <br><br>
        <input type="text" class="formtext" name="nameList<c:out value='[${status.index}]'/>.Reason" id ="reason<c:out value='[${status.index}]'/>" value="" maxlength="255" >
            <br><br>
            <input type="submit" value="submit" id="submit" />

     </c:forEach>
</form>

Below will the form submit function

<script type="text/javascript">

$("#frmDetails").on("submit",function(e){
var valid=true;
e.preventDefault();
var inputs=$(this).children('input');
$.each('input',function(index,value){
   if($(this).val()=="")//blank validation
   {
          valid=false;
   }
});
if(valid)
{
//post the form
}

$("#frmDetails").unbind("submit"); //To prevent the form from getting submitted 
});

</script>