How to auto start download file on page load?

Hello 

i have tried many methods:

1. normal way: 

protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            if (Request.QueryString.Get("formid") != null)

            {

                int.TryParse(Request.QueryString.Get("formid"), out formId);

                hfID.Value = formId.ToString();



                DownloadFile(formId);

            }

        }

    }

this way doesn't work. actually ,the file was downloaded, but the current page wasn't displayed. 

 

2.using Thread.

protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            if (Request.QueryString.Get("formid") != null)

            {

                int.TryParse(Request.QueryString.Get("formid"), out formId);

                hfID.Value = formId.ToString();



                

                ThreadStart starter = delegate { DownloadFile(formId); };

                //ThreadStart 

                Thread oThread = new Thread(starter);

                //oThread.IsBackground = true;

                oThread.Start();

            }

        }

    }

i got an error in method "DownloadFile", maybe in the new thread, some assemblies were not loaded.

 

3.use asp.net event : Page_Unload

    protected void Page_UnLoad(object sender, EventArgs e)

    {

        DownloadFile(formId);

        //base.OnUnload(e);

    }

the downloading is working ,but problem is the current page doesn't displayed.

 

4.use javascript. 

first, we need to create a new linkbutton event:

protected void LinkButton1_Click(object sender, EventArgs e)

    {

        int.TryParse(hfID.Value, out formId);

        DownloadFile(formId);

    }

second:

<script language="javascript">

    $(document).ready(function() {

        __doPostBack('dnn$ctr599$DocumentFormDownload$LinkButton1', '');

    });

</script>

when page was completed load, then the js code will be excueted. 

the way is working on FF,Chrome , but not on IE. 

actually , it's working on IE, but we just got an notification,see below: 

this way is similar with :http://sourceforge.net/projects/emule/files/eMule/0.50a/eMule0.50a-Installer.exe/download

 

do you have good way for auto download the file? 

any ideas will be appreciated.