public static void DownloadFile(int fileId, HttpResponse response, bool AddContentDispositionHeader)
{
string fileName;
string contentType;
int size;
GetInfo(fileId, out fileName, out contentType, out size);
response.ContentType = contentType;
string susag = HttpContext.Current.Request.UserAgent.ToString();
if (susag.IndexOf("MSIE") > 0)
{
string sextension = "";
string _fileName = fileName;
int lastDot = fileName.LastIndexOf(".");
if (lastDot >= 0)
{
sextension = fileName.Substring(lastDot);
_fileName = fileName.Substring(0, lastDot);
}
bool MoreThan127 = false;
for (int i = 0; i < _fileName.Length; i++)
{
char ch = _fileName[i];
int j = (int)ch;
if (j > 127)
{
MoreThan127 = true;
break;
}
}
if (MoreThan127 && _fileName.Length > 25)
{
_fileName = _fileName.Substring(0, 25);
}
fileName = HttpContext.Current.Server.UrlPathEncode(_fileName + sextension);
}
if (AddContentDispositionHeader)
{
response.AddHeader("content-disposition", String.Format("attachment; filename=\"{0}\"", fileName));
}
const int iBufferSize = 65536; // 64 KB
byte[] outbyte = new byte[iBufferSize];
using (IDataReader reader = DBFile.GetBinaryData(fileId))
{
if (reader != null)
{
if (reader.Read())
{
long read = 0, startIndex = 0;
do
{
if (response.IsClientConnected)
{
read = reader.GetBytes(0, startIndex, outbyte, 0, iBufferSize);
response.OutputStream.Write(outbyte, 0, System.Convert.ToInt32(read));
response.Flush();
startIndex += read;
}
else
{
read = 0;
}
} while(read == iBufferSize);
}
}
}
}