/// <summary>
        /// ����Ƶ���ؼ��ַ��� ��ӣ�ɾ�����޸�
        /// </summary>
        /// <param name="hairNetTagGroup"></param>
        /// <param name="ua"></param>
        /// <returns></returns>
        public bool HairNetTagGroupCreateDeleteUpdate(HairNetTagGroup hairNetTagGroup, UserAction ua)
        {
            bool result = false;
            string commandText = string.Empty;
            switch (ua)
            {
                case UserAction.Create:
                    commandText = "INSERT INTO HairNetTagGroup  (HairNetTagGroupID, HairNetTagGroupName) VALUES (" + hairNetTagGroup.ID + ", '" + hairNetTagGroup.Name + "')";
                    break;
                case UserAction.Delete:
                    commandText = "DELETE FROM HairNetTagGroup WHERE (HairNetTagGroupID = " + hairNetTagGroup.ID + ")";
                    break;
                case UserAction.Update:
                    commandText = "UPDATE HairNetTagGroup SET HairNetTagGroupName ='" + hairNetTagGroup.Name + "' WHERE (HairNetTagGroupID = " + hairNetTagGroup.ID + ")";
                    break;
            }
            using (SqlConnection conn = new SqlConnection(DataHelper2.SqlConnectionString))
            {
                using (SqlCommand comm = new SqlCommand())
                {
                    comm.CommandText = commandText;
                    comm.Connection = conn;
                    conn.Open();
                    try
                    {
                        comm.ExecuteNonQuery();
                        result = true;
                    }
                    catch (Exception ex)
                    {
                        throw new Exception(ex.Message);
                    }

                }
            }
            return result;
        }
        /// <summary>
        /// �������Ƶ���ؼ��ַ����б�
        /// </summary>
        /// <param name="count"></param>
        /// <returns></returns>
        public List<HairNetTagGroup> GetHairNetTagGroups(int count)
        {
            List<HairNetTagGroup> list = new List<HairNetTagGroup>();
            string commText = string.Empty;

            switch (count)
            {
                case 0:
                    commText = "SELECT * FROM HairNetTagGroup ORDER BY HairNetTagGroupID DESC";
                    break;
                default:
                    commText = "select top " + count.ToString() + " * FROM HairNetTagGroup ORDER BY HairNetTagGroupID DESC";
                    break;
            }

            using (SqlConnection conn = new SqlConnection(DataHelper2.SqlConnectionString))
            {
                {
                    using (SqlCommand comm = new SqlCommand())
                    {
                        comm.Connection = conn;
                        comm.CommandText = commText;
                        conn.Open();

                        using (SqlDataReader reader = comm.ExecuteReader())
                        {
                            while (reader.Read())
                            {
                                HairNetTagGroup tag = new HairNetTagGroup();
                                tag.ID  = int.Parse(reader["HairNetTagGroupID"].ToString());
                                tag.Name = reader["HairNetTagGroupName"].ToString();

                                list.Add(tag);

                            }
                        }
                    }
                }
            }

            return list;
        }