using System; using System.Collections.Generic; using Library; using System.Linq; using System.Data; namespace MySystem { public class HelpProfitTradeSummaryDbconn { public readonly static HelpProfitTradeSummaryDbconn Instance = new HelpProfitTradeSummaryDbconn(); public HelpProfitTradeSummaryDbconn() { } public decimal GetTrade(int UserId, string TradeDateOrMonth, string kind = "self") { string condition = ""; if(TradeDateOrMonth.Length == 8) { condition = " and TradeDate='" + TradeDateOrMonth + "'"; } else { condition = " and TradeMonth='" + TradeDateOrMonth + "'"; } decimal amt = 0; DataTable dt = CustomerSqlConn.dtable("select sum(TradeAmount) from HelpProfitUserTradeSummay where UserId=" + UserId + " and SeoTitle='" + kind + "'" + condition, MysqlConn.ReadSqlConnStr); if(dt.Rows.Count > 0) { amt = decimal.Parse(function.CheckNum(dt.Rows[0][0].ToString())); } return amt; } } }