JSFiddle - React, Tailwind, and code Playground

HTML

<select data-val="true" data-val-required="Das Feld &quot;SelectedRefresh&quot; ist erforderlich." id="myDropDown" name="SelectedRefresh">
    <option selected="selected" value="False">Aus</option>
    <option value="True">Ein</option>
</select>

JavaScript

<script type="text/javascript" src="/Scripts/jquery-1.7.1.min.js"> 
</script>
 <script type="text/javascript">
     $(document).ready(function () {
         $('#myDropDown').change(function (e) {
             alert('change function called ..... yepppp');
             e.preventDefault();
             var url = '@Url.Action("Index")';
             alert(url);
             $.get(url, function (data) {
                 //$(this).html(data);
                 //$('.result').html(data);
                 //alert('data loaded ' + data);
             });
         });
     });
</script>