May 03, 2012 06:17 PM|sriramabi|LINK
you can use jquery with a C# handler to upload a file. It will not cause any post back..
can give you some links which will give you idea about avoiding page refresh please go through it:
Page Refresh in C#[^]
to prevent page refresh in asp.net[^]
question was already ask'd on this forum; see if you get some help from it:
to avoid page refreshing while uploading file[^]