title: How can I upload a file using JavaScript without a postback?
body: <p>I am working on a file upload in ASP.NET. I used <code>&lt;input type=file id=upload&gt;</code> and <code>&lt;input type=button id="btnupload" value="File Upload"&gt;</code></p>
  
  <p>I want to upload the file in JavaScript. The update panel does not work, I do not want it to postback and refresh the page.</p>
  
  <p>thanks but If you have code related to fileUpload in javascript then send me. please help me. </p>