asp.net VB.net file download handler not work properly

Question

I have big file (about 2GB) to distribute to our customer, My website is written by asp.net vb, this is my file download handler:

Public Class FileHandler
    Im         


        

Answer 1

I use a button or just a plain link to the file itself, I've never had to use a handler to download files.

For example, on the aspx I have a button and in the code behind I send the user to the file using the response object:

Protected Sub Button_DownloadFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button_DownloadFile.Click

    Response.AddHeader("Content-Disposition", "attachment; filename=TheFileName.ext")
    Response.WriteFile("~/App_Data/TheFileName.ext")

END SUB