/// <summary>
        /// 增加一条数据
        /// </summary>
        public void AddChangeBillDataAttachment(ChangeBillDataAttachment ChangeBillDataAttachment, CommonInterface pcomm)
        {
            StringBuilder strSql = new StringBuilder();

            strSql.Append("insert into ChangeBillDataAttachment(");
            strSql.Append("ChangeBillDataAttachmentGuID,ChangeBillGuID,FileGuID,FileSourceName,FileContent)");
            strSql.Append(" values (");
            strSql.Append("@ChangeBillDataAttachmentGuid,@ChangeBillGuID,@FileGuID,@FileSourceName,@FileContent)");

            SqlParameter[] parameters =
            {
                new SqlParameter("@ChangeBillDataAttachmentGuID", SqlDbType.NVarChar,  50),
                new SqlParameter("@ChangeBillGuID",               SqlDbType.NVarChar,  50),
                new SqlParameter("@FileGuID",                     SqlDbType.NVarChar,  50),
                new SqlParameter("@FileSourceName",               SqlDbType.NVarChar, 100),
                new SqlParameter("@FileContent",                  SqlDbType.Image)
            };
            parameters[0].Value = ChangeBillDataAttachment.ChangeBillDataAttachmentGuID;
            parameters[1].Value = ChangeBillDataAttachment.ChangeBillGuID;
            parameters[2].Value = ChangeBillDataAttachment.FileGuID;
            parameters[3].Value = ChangeBillDataAttachment.FileSourceName;
            parameters[4].Value = ChangeBillDataAttachment.FileContent;

            pcomm.ExecuteNonQueryBySqlParameters(strSql.ToString(), parameters);
        }