sql参数in

        /// <summary>
        /// 批量删除时的辅助方法
        /// </summary>
        /// <param name="sKeys">值列表</param>
        /// <param name="sbWhere">Sql in子句的参数</param>
        /// <returns>in子句的参数与值</returns>
        public List<SqlParameter> GetParaListByKeys(string sKeys, StringBuilder sbWhere)
        {
            string[] idList = sKeys.Split(',');
            List<SqlParameter> lstPara = new List<SqlParameter>(idList.Length);
            SqlParameter paraTemp = null;
            string sPara = "";
            for (int i = 0; i < idList.Length; i++)
            {
                sPara = string.Format("@s{0}", i);
                sbWhere.Append(sPara);
                if (i != (idList.Length - 1))
                {
                    sbWhere.Append(",");
                }
                paraTemp = new SqlParameter(sPara, idList[i].ToUpper());
                lstPara.Add(paraTemp);
            }
            return lstPara;
        }



使用：
               StringBuilder _sqlStr = new StringBuilder();
               _sqlStr.Append("select * from tablename where columnName in({0})");
                StringBuilder sbWhere = new StringBuilder();
                List<SqlParameter> lstPara = dba.GetParaListByKeys(arrPeiZhiXiangID, sbWhere);
                string sSql = string.Format(_sqlStr.ToString(), sbWhere.ToString());