Question

Is it possible to rename file when trying to download it?
For example, I would like to store files to folders using their id’s but when user downloads file I’d like to return the original filename.

Answer 1

just change name of file over here

Response.AppendHeader("Content-Disposition","attachment; filename=LeftCorner.jpg");

for example

 string filename = "orignal file name.ext";
 Response.AppendHeader("Content-Disposition","attachment; filename="+ filename  +"");

Downloading a File with a Save As Dialog in ASP.NET