VAGSuite.TransactionLog.Purge C# (CSharp) Method

        public void Purge()
        {
            // purge the file so that only the last 1000 records are kept and the rest is deleted

            // create a copy
            try
            {
                string newFilename = Path.Combine(Path.GetDirectoryName(m_fileName), Path.GetFileNameWithoutExtension(m_fileName) + "-" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".btl");
                File.Copy(m_fileName, newFilename);
            }
            catch (Exception E)
            {
                Console.WriteLine(E.Message);
            }

            File.Delete(m_fileName);

            while (_transCollection.Count > 1000) _transCollection.RemoveAt(0);
            CreateFileByFilename();
            int entryCount = 0;
            foreach (TransactionEntry entry in _transCollection)
            {
                    entry.TransactionNumber = entryCount++;
                    AddTransactionToFile(entry, false);
            }
            UpdateNumberOfTransActions();
            UpdateChecksum();
            ReadTransactionFile();
        }