public IList<Core.Business.FileRecord> GetAllFileRecord()
        {
            IList<Core.Business.FileRecord> fileRecordlist = new List<Core.Business.FileRecord>();
            SqlServerUtility sql = new SqlServerUtility();

            SqlDataReader reader = sql.ExecuteSqlReader(SqlGetAllFileRecord);

            if (reader != null)
            {
                while (reader.Read())
                {
                    Core.Business.FileRecord fileRecord = new Core.Business.FileRecord();

                    if (!reader.IsDBNull(0)) fileRecord.Id = reader.GetInt32(0);
                    if (!reader.IsDBNull(1)) fileRecord.Path = reader.GetString(1);
                    if (!reader.IsDBNull(2)) fileRecord.Name = reader.GetString(2);
                    if (!reader.IsDBNull(3)) fileRecord.Extention = reader.GetString(3);

                    fileRecord.MarkOld();
                    fileRecordlist.Add(fileRecord);
                }
                reader.Close();
            }
            return fileRecordlist;
        }
        public FileRecord Find(string path)
        {
            SqlServerUtility sql = new SqlServerUtility();

            sql.AddParameter("@Path", SqlDbType.NVarChar, path);

            SqlDataReader reader = sql.ExecuteSqlReader(SqlFindFileRecord);

            if (reader != null && !reader.IsClosed && reader.Read())
            {
                Core.Business.FileRecord fileRecord = new Core.Business.FileRecord();

                if (!reader.IsDBNull(0)) fileRecord.Id = reader.GetInt32(0);
                if (!reader.IsDBNull(1)) fileRecord.Path = reader.GetString(1);
                if (!reader.IsDBNull(2)) fileRecord.Name = reader.GetString(2);
                if (!reader.IsDBNull(3)) fileRecord.Extention = reader.GetString(3);

                reader.Close();
                return fileRecord;
            }
            else
            {
                if (reader != null && !reader.IsClosed)
                    reader.Close();

                return null;
            }
        }