VAGSuite.HexViewer.SaveFile C# (CSharp) Метод

        void SaveFile()
        {
            if (hexBox1.ByteProvider == null)
                return;

            try
            {
                if (File.Exists(_fileName))
                {
                    File.Copy(_fileName, _fileName + "-backup" + DateTime.Now.Ticks.ToString());
                    FileByteProvider fileByteProvider = hexBox1.ByteProvider as FileByteProvider;
                    DynamicByteProvider dynamicByteProvider = hexBox1.ByteProvider as DynamicByteProvider;
                    DynamicFileByteProvider dynamicFileByteProvider = hexBox1.ByteProvider as DynamicFileByteProvider;
                    if (fileByteProvider != null)
                    {
                        fileByteProvider.ApplyChanges();
                    }
                    else if (dynamicFileByteProvider != null)
                    {
                        dynamicFileByteProvider.ApplyChanges();
                    }
                    else if (dynamicByteProvider != null)
                    {
                        byte[] data = dynamicByteProvider.Bytes.ToArray();
                        using (FileStream stream = File.Open(_fileName, FileMode.Create, FileAccess.Write, FileShare.Read))
                        {
                            stream.Write(data, 0, data.Length);
                        }
                        dynamicByteProvider.ApplyChanges();
                    }
                }
            }
            catch (Exception ex1)
            {
                MessageBox.Show(ex1.Message, "EDC15P Suite", MessageBoxButtons.OK,
                    MessageBoxIcon.Error);
            }
            finally
            {
                ManageAbility();
            }
        }