Downloading file to client problem

[aspdotnetuser]

Hi,

I want to allow the user to download a .bmp file to their desktop, and I have the code working for this but when the file is downloaded it cannot be opened - why is this? Can anyone tell me what I am doing wrong? Here is the code
(exectuted when user clicks download button)

[blue]
String fileName;

fileName = ReceiptID.Remove(0, 6);

string url = "

https://websitename.com/Docs/"

+ fileName;

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();

int bufferSize = 1;

[red]//Initialize the output stream[/red]
Response.Clear();
Response.AppendHeader("Content-Disposition:", "attachment; filename=download.jpg");

Response.AppendHeader("ContentLength",resp.ContentLength.ToString());

Response.ContentType = "application/download";

[red]//Populate the output stream[/red]
byte[] ByteBuffer = new byte[bufferSize + 1];
MemoryStream ms = new MemoryStream(ByteBuffer, true);

Stream rs = req.GetResponse().GetResponseStream();

byte[] bytes = new byte[bufferSize + 1];

while (rs.Read(ByteBuffer, 0, ByteBuffer.Length) > 0)

{
Response.BinaryWrite(ms.ToArray());
Response.Flush();
}[/blue]

 

[aspdotnetuser]

I managed to solve this, here is the code just in case anyone else comes accross this post trying to find out how to download files:

[blue]
String fname = "filename.bmp";

Boolean downloadFile = true;

string path = @"/Docs/" + fname;

string name = Path.GetFileName(path);
string ext = Path.GetExtension(path);
string type = "";
// set known types based on file extension
if (ext != null)
{
switch (ext.ToLower())
{
case ".bmp":
type = "application/download";
break;

case ".htm":
case ".html":
type = "text/HTML";
break;

case ".txt":
type = "text/plain";
break;

case ".doc":
case ".rtf":
type = "Application/msword";
break;
}
}
if (downloadFile)
{
Response.AppendHeader("content-disposition",
"attachment; filename=" + name);
}
if (type != "")
Response.ContentType = type;
Response.WriteFile(path);
Response.End();
}[/blue]