title: File uploading in AJAX updatepanel without full postback
body: <p>I have a update panel, in the update panel I have fileupload control and button control, On button click, I need the file that I have upload in the fileupload control in updatepanel. </p>
  
  <p>Exact scenario, I have 8 tabs on page, each tab contains too much information, One of the tab is Attachment, when user click on Add New Attachment Modal Popup shown, Modal contains detailsview in Updatepanel and in the detailsview I have fileupload control, when user hit <strong>save</strong> button, <strong>detailsview inserting event</strong> fired, In the inserting event I need the file that I have upload. 
  <br/>Please Note, My page is heavy and I don't want full postBack.</p>
  
  <p><br>Does anyone have solution of this issue? </p>
  
  <p>Advance thanks for your kind help.....</p>