When downloading a file from ASP .Net, the text file gets appended with HTML content

Question

I have made a page that allows users to upload files to the server using a FileUpload Control and handling its event with this code

Sub SaveAttachment()
             


        

Answer 1

Response.redirect threw an exception. Shoaib's answer got me closer but it suppressed everything including the valid file content. What worked for me was reordering the statements as follows:

 Response.ContentType = ContentType
 Response.AppendHeader("Content-Disposition", "attachment; filename=" & originalFileName)
 Response.WriteFile(filePath)
 Response.Flush()
 Response.SuppressContent = True
 HttpContext.Current.ApplicationInstance.CompleteRequest()