Edit in JSFiddle

$(document).ready(function(){
    $('#ddlList').change(function(){
       alert('Change Event called');
    });  
});

<select id="ddlList">
  <option value="1">ASP.NET</option>
  <option value="2">C#</option>
  <option value="3">VB.NET</option>
  <option value="4">HTML</option>
  <option value="5">jQuery</option>
</select>

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