public static BG_Caliber AddBG_Caliber(BG_Caliber bG_Caliber)
        {
            string sql =
                "INSERT BG_Caliber (CaliberName, ParentID,CbLever)" +
                "VALUES (@CaliberName, @ParentID)";

            sql += " ; SELECT @@IDENTITY";

            try
            {
                SqlParameter[] para = new SqlParameter[]
                {
                    new SqlParameter("@CaliberName", bG_Caliber.CaliberName),
                    new SqlParameter("@ParentID", bG_Caliber.ParentID),
                    new SqlParameter("@CbLever", bG_Caliber.CbLever)
                };

                string IdStr = DBUnity.ExecuteScalar(CommandType.Text, sql, para);
                int newId = Convert.ToInt32(IdStr);
                return GetBG_CaliberByCaliberID(newId);

            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
                throw e;
            }
        }
        public static BG_Caliber GetBG_CaliberByCaliberID(int caliberID)
        {
            string sql = "SELECT * FROM BG_Caliber WHERE CaliberID = @CaliberID";

            try
            {
                SqlParameter para = new SqlParameter("@CaliberID", caliberID);
                DataTable dt = DBUnity.AdapterToTab(sql, para);

                if(dt.Rows.Count > 0)
                {
                    BG_Caliber bG_Caliber = new BG_Caliber();

                    bG_Caliber.CaliberID = dt.Rows[0]["CaliberID"] == DBNull.Value ? 0 : (int)dt.Rows[0]["CaliberID"];
                    bG_Caliber.CaliberName = dt.Rows[0]["CaliberName"] == DBNull.Value ? "" : (string)dt.Rows[0]["CaliberName"];
                    bG_Caliber.ParentID = dt.Rows[0]["ParentID"] == DBNull.Value ? 0 : (int)dt.Rows[0]["ParentID"];
                    bG_Caliber.CbLever = dt.Rows[0]["CbLever"] == DBNull.Value ? 0 : (int)dt.Rows[0]["CbLever"];
                    return bG_Caliber;
                }
                else
                {
                    return null;
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
                throw e;
            }
        }
 public static bool DeleteBG_Caliber(BG_Caliber bG_Caliber)
 {
     return DeleteBG_CaliberByCaliberID( bG_Caliber.CaliberID );
 }
        public static bool ModifyBG_Caliber(BG_Caliber bG_Caliber)
        {
            string sql =
                "UPDATE BG_Caliber " +
                "SET " +
                    "CaliberName = @CaliberName, " +
                    "ParentID = @ParentID ," + "CbLever = @CbLever " +
                "WHERE CaliberID = @CaliberID";

            try
            {
                SqlParameter[] para = new SqlParameter[]
                {
                    new SqlParameter("@CaliberID", bG_Caliber.CaliberID),
                    new SqlParameter("@CaliberName", bG_Caliber.CaliberName),
                    new SqlParameter("@ParentID", bG_Caliber.ParentID),
                    new SqlParameter("@CbLever", bG_Caliber.CbLever)
                };

                int t = DBUnity.ExecuteNonQuery(CommandType.Text, sql, para);
                if(t>0)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
                throw e;
            }
        }