コード例 #1
0
        /// <summary>
        /// 取记录的最大ID
        /// </summary>
        /// <param name="FieldName">自增长主键ID字段名</param>
        /// <param name="TableName">表名</param>
        /// <returns></returns>
        public static string GetMaxID(string FieldName, string TableName)
        {
            string strsql = "select max(" + FieldName + ")+1 from " + TableName;
            object obj    = Itemsql.GetSingle(strsql);

            if (obj == null)
            {
                return("1");
            }
            else
            {
                return(obj.ToString());
            }
        }
コード例 #2
0
        /// <summary>
        /// 判断记录是否存在(带参数SQL语句)
        /// </summary>
        /// <param name="strSql">SQL语句</param>
        /// <param name="cmdParms">参数</param>
        /// <returns></returns>
        public static bool Exists(string strSql, params SqlParameter[] cmdParms)
        {
            object obj = Itemsql.GetSingle(strSql, cmdParms);
            int    cmdresult;

            if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
            {
                cmdresult = 0;
            }
            else
            {
                cmdresult = int.Parse(obj.ToString());
            }
            if (cmdresult == 0)
            {
                return(false);
            }
            else
            {
                return(true);
            }
        }