By using 'multipart/form-data' I am uploading a csv file & doing some stuff in the database. Once it is completed, I am returning a list to my action. I need to display this list and a button. Once the button is clicked, I need to export this list as a csv file. This 'Export' functionality works if I don't display the list. If the list is displayed and then the 'Export' gives Internal Server Error 500. I am not able to figure out the problem here..I will appreciate any help on the same..Thanks, Amuthan