javascript - Get dynamic elements from page HTML? -


i new front end development have quite bit of end dev experience. i've tried few different approaches javascript below , of things tried.

i have following code shows products. in n each loop product list.

at bottom of page have add button.

i need data-id of each product productid, price price , value of qty input field can send through cart.

i can't values , have tried few different things.

<div class="col-md-2">             <div class="panel panel-primary">                 <div class="panel-heading">                     <h3 class="panel-title">@html.displayfor(modelitem => product.code)</h3>                 </div>                 <div class="panel-body">                     <div class="text-center" id="user_image">                         <img src="../../images/chickenbreast.jpg" class="img-thumbnail" />                     </div>                     <br />                     <div class="panel-body form-group-separated">                         <div class="form-group">                             <label class="control-label">short description:</label>                             <p>@html.displayfor(modelitem => product.description)</p>                         </div>                         <div class="form-group">                             <label class="control-label">long description:</label>                             <p>@html.displayfor(modelitem => product.longdescription)</p>                         </div>                     </div>                     <div class="panel-footer">                         <form class="form-inline" role="form">                             <div class="form-group">                                 <input id="qty" data-id="@product.id" price="@product.price" type="text" class="product-control" placeholder="qty" />                             </div>                             <button id="addbutton" class="btn btn-primary pull-right">add cart</button>                         </form>                     </div>                 </div>             </div>         </div>

here javascript, have tried few different things nothing seems give me required data

    <script type="text/javascript" src="../../scripts/js/plugins/jquery/jquery.min.js"></script> <script type="text/javascript">     $("#addbutton").click(function (form) {         var producttoupdate = $("input").parent().find("data-id");         var counttoupdate = $('input[id="qty"]', form).val();         var productprice = $(this).parent().find('price').val();          if (producttoupdate != '') {             // perform ajax post             $.post("~/cart/getcartitems", { "productid": producttoupdate, "qty": counttoupdate, "price": productprice },             function (data) {                 //check not process callback data when server error occurs                 //if (data.itemcount != -1) {                 //    $('#cart-total').text(data.carttotal);                 //}             });         }     }); </script>

the selector data-id never match. suggesting data-id element type (example) <data-id ...></data-id> try using find('input[data-id]') instead.

https://api.jquery.com/category/selectors/attribute-selectors/

https://api.jquery.com/has-attribute-selector/

description: selects elements have specified attribute, value.

example documentation:

<!doctype html> <html lang="en"> <head>   <meta charset="utf-8">   <title>attributehas demo</title>   <script src="https://code.jquery.com/jquery-1.10.2.js"></script> </head> <body>  <div>no id</div> <div id="hey">with id</div> <div id="there">has id</div> <div>nope</div>  <script> // using .one() handler executed @ once // per element per event type $( "div[id]" ).one( "click", function() {   var idstring = $( ).text() + " = " + $( ).attr( "id" );   $( ).text( idstring ); }); </script>  </body> </html> 

// using .one() handler executed @ once  // per element per event type  $("div[id]").one("click", function() {    var idstring = $(this).text() + " = " + $(this).attr("id");    $(this).text(idstring);  });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>  <!doctype html>  <html lang="en">    <head>    <meta charset="utf-8">    <title>attributehas demo</title>    <script src="https://code.jquery.com/jquery-1.10.2.js"></script>  </head>    <body>      <div>no id</div>    <div id="hey">with id</div>    <div id="there">has id</div>    <div>nope</div>      <script>    </script>    </body>    </html>


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