How to prevent a form from refreshing during file upload, in infopath

Question

Hi all,

I  have an infopath form designed in infopath 2010. In that there is a File Attachment Control. Whenever any file (.txt file or PDF) is being uploaded to the form, the entire form gets refreshed, which I want to stop.

To clarify, while any file is uploaded to the form, the entire form should not get refreshed i mean post back should not happen in file attachment changed event. Due to this, other functionality is being affected.

Any help please.............