private void DownloadFileInParts(Document.File file, DocumentService docSvc, string outputfile)
{
int MAX_BUFFER_SIZE = 1024 * 1024 * 4; // 49 MB buffer size
System.IO.FileStream outputStream = null;
try
{
long startByte = 0;
long endByte;
// create the output file
outputStream = System.IO.File.OpenWrite(outputfile);
// for each loop, the MAX_BUFFER_SIZE number of bytes gets downloaded from the server and written
// to disk
while (startByte < file.FileSize)
{
byte[] buffer;
endByte = startByte + MAX_BUFFER_SIZE;
if (endByte > file.FileSize)
endByte = file.FileSize;
// grab the file part from the server
buffer = docSvc.DownloadFilePart(file.Id, startByte, endByte, true);
// write the data to the file
outputStream.Write(buffer, 0, buffer.Length);
startByte += buffer.Length;
}
}
finally
{
if (outputStream != null)
outputStream.Close();
}
}