Save dynamically generated input fields

Question

I am using this code to generate dynamically ADD More input fields and then plan on using Save button to save their values in database. The challenge is that on Save button, I want to keep displaying the User Generated Input fields. However they are being refreshed on Save button clicked.

javascript:

<script type="text/javascript">
    var rowNum = 0;

    function addRow(frm) {
        rowNum++;
        var row = '<p id="rowNum' + rowNum + '">Item quantity: <input type="text" name="qty[]" size="4" value="' + frm.add_qty.value + '"> Item name: <input type="text" name="name[]" value="' + frm.add_name.value + '"> <input type="button" value="Remove" onclick="removeRow(' + rowNum + ');"></p>';
        jQuery('#itemRows').append(row);
        frm.add_qty.value = '';
        frm.add_name.value = '';

    }

    function removeRow(rnum) {
        jQuery('#rowNum' + rnum).remove();
    }
</script>

HTML:

<form method="post">
    <div id="itemRows">Item quantity:
        <input type="text" name="add_qty" size="4" />Item name:
        <input type="text" name="add_name" />
        <input onclick="addRow(this.form);" type="button" value="Add row" />
    </div>
    <p>
        <button id="_save">Save by grabbing html</button>
        <br>
    </p>
</form>

Answer 1

One approach is to define a template to add it dynamically via jQuery

Template

---

<script type="text/html" id="form_tpl">
  <div class = "control-group" > 
    <label class = "control-label"for = 'emp_name' > Employer Name </label>
    <div class="controls">
        <input type="text" name="work_emp_name[<%= element.i %>]" class="work_emp_name"
               value="" /> 
    </div>
</div>

Button click event

---

$("form").on("click", ".add_employer", function (e) {
   e.preventDefault();
   var tplData = {
      i: counter
   };
   $("#word_exp_area").append(tpl(tplData));
  counter += 1;
});

The main thing is to call e.preventDefault(); to prevent the page from reload.

You might want to check this working example

http://jsfiddle.net/hatemalimam/EpM7W/

Answer 2

与Hatem Alimam所写的一样，让你的表单调用upate.php文件，目标是1px的iframe。