612 lines
22 KiB
C#
612 lines
22 KiB
C#
/** 版本信息模板在安装目录下，可自行修改。
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* electricity_data.cs
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*
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* 功 能： N/A
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* 类 名： electricity_data
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*
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* Ver 变更日期 负责人 变更内容
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* ───────────────────────────────────
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* V0.01 2024/1/31 10:29:15 N/A 初版
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*
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* Copyright (c) 2012 Maticsoft Corporation. All rights reserved.
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*┌──────────────────────────────────┐
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*│ 此技术信息为本公司机密信息，未经本公司书面同意禁止向第三方披露． │
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*│ 版权所有：动软卓越（北京）科技有限公司 │
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*└──────────────────────────────────┘
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*/
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using System;
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using System.Data;
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using System.Text;
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using MySql.Data.MySqlClient;
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using Maticsoft.DBUtility;//Please add references
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using System.Collections.Generic;
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namespace DataService.DAL
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{
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/// <summary>
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/// 数据访问类:electricity_data
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/// </summary>
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public partial class electricity_data
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{
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public electricity_data()
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{}
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#region BasicMethod
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/// <summary>
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/// 是否存在该记录
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/// </summary>
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public bool Exists(string ElectricityId)
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{
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StringBuilder strSql=new StringBuilder();
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strSql.Append("select count(1) from electricity_data");
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strSql.Append(" where ElectricityId=@ElectricityId ");
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MySqlParameter[] parameters = {
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new MySqlParameter("@ElectricityId", MySqlDbType.VarChar,255) };
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parameters[0].Value = ElectricityId;
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return DbHelperMySQL.Exists(strSql.ToString(),parameters);
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}
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/// <summary>
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/// 增加一条数据
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/// </summary>
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public bool Add(DataService.Model.electricity_data model)
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{
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StringBuilder strSql=new StringBuilder();
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strSql.Append("insert into electricity_data(");
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strSql.Append("ElectricityId,DeviceName,EH,P,Kvar,Ia,Ib,Ic,Ua,Ub,Uc,ServiceRating,CreateTime,EntireTime,Reserve1,Reserve2,Reserve3,Reserve4,Reserve5)");
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strSql.Append(" values (");
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strSql.Append("@ElectricityId,@DeviceName,@EH,@P,@Kvar,@Ia,@Ib,@Ic,@Ua,@Ub,@Uc,@ServiceRating,@CreateTime,@EntireTime,@Reserve1,@Reserve2,@Reserve3,@Reserve4,@Reserve5)");
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MySqlParameter[] parameters = {
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new MySqlParameter("@ElectricityId", MySqlDbType.VarChar,255),
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new MySqlParameter("@DeviceName", MySqlDbType.VarChar,255),
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new MySqlParameter("@EH", MySqlDbType.Float,255),
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new MySqlParameter("@P", MySqlDbType.Float,255),
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new MySqlParameter("@Kvar", MySqlDbType.Float,255),
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new MySqlParameter("@Ia", MySqlDbType.Float,255),
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new MySqlParameter("@Ib", MySqlDbType.Float,255),
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new MySqlParameter("@Ic", MySqlDbType.Float,255),
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new MySqlParameter("@Ua", MySqlDbType.Float,255),
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new MySqlParameter("@Ub", MySqlDbType.Float,255),
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new MySqlParameter("@Uc", MySqlDbType.Float,255),
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new MySqlParameter("@ServiceRating", MySqlDbType.Float,255),
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new MySqlParameter("@CreateTime", MySqlDbType.DateTime),
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new MySqlParameter("@EntireTime", MySqlDbType.DateTime),
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new MySqlParameter("@Reserve1", MySqlDbType.VarChar,255),
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new MySqlParameter("@Reserve2", MySqlDbType.VarChar,255),
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new MySqlParameter("@Reserve3", MySqlDbType.VarChar,255),
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new MySqlParameter("@Reserve4", MySqlDbType.VarChar,255),
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new MySqlParameter("@Reserve5", MySqlDbType.VarChar,255)};
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parameters[0].Value = model.ElectricityId;
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parameters[1].Value = model.DeviceName;
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parameters[2].Value = model.EH;
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parameters[3].Value = model.P;
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parameters[4].Value = model.Kvar;
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parameters[5].Value = model.Ia;
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parameters[6].Value = model.Ib;
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parameters[7].Value = model.Ic;
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parameters[8].Value = model.Ua;
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parameters[9].Value = model.Ub;
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parameters[10].Value = model.Uc;
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parameters[11].Value = model.ServiceRating;
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parameters[12].Value = model.CreateTime;
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parameters[13].Value = model.EntireTime;
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parameters[14].Value = model.Reserve1;
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parameters[15].Value = model.Reserve2;
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parameters[16].Value = model.Reserve3;
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parameters[17].Value = model.Reserve4;
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parameters[18].Value = model.Reserve5;
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int rows=DbHelperMySQL.ExecuteSql(strSql.ToString(),parameters);
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if (rows > 0)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 更新一条数据
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/// </summary>
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public bool Update(DataService.Model.electricity_data model)
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{
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StringBuilder strSql=new StringBuilder();
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strSql.Append("update electricity_data set ");
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strSql.Append("DeviceName=@DeviceName,");
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strSql.Append("EH=@EH,");
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strSql.Append("P=@P,");
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strSql.Append("Kvar=@Kvar,");
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strSql.Append("Ia=@Ia,");
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strSql.Append("Ib=@Ib,");
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strSql.Append("Ic=@Ic,");
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strSql.Append("Ua=@Ua,");
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strSql.Append("Ub=@Ub,");
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strSql.Append("Uc=@Uc,");
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strSql.Append("ServiceRating=@ServiceRating,");
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strSql.Append("CreateTime=@CreateTime,");
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strSql.Append("EntireTime=@EntireTime,");
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strSql.Append("Reserve1=@Reserve1,");
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strSql.Append("Reserve2=@Reserve2,");
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strSql.Append("Reserve3=@Reserve3,");
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strSql.Append("Reserve4=@Reserve4,");
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strSql.Append("Reserve5=@Reserve5");
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strSql.Append(" where ElectricityId=@ElectricityId ");
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MySqlParameter[] parameters = {
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new MySqlParameter("@DeviceName", MySqlDbType.VarChar,255),
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new MySqlParameter("@EH", MySqlDbType.Float,255),
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new MySqlParameter("@P", MySqlDbType.Float,255),
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new MySqlParameter("@Kvar", MySqlDbType.Float,255),
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new MySqlParameter("@Ia", MySqlDbType.Float,255),
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new MySqlParameter("@Ib", MySqlDbType.Float,255),
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new MySqlParameter("@Ic", MySqlDbType.Float,255),
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new MySqlParameter("@Ua", MySqlDbType.Float,255),
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new MySqlParameter("@Ub", MySqlDbType.Float,255),
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new MySqlParameter("@Uc", MySqlDbType.Float,255),
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new MySqlParameter("@ServiceRating", MySqlDbType.Float,255),
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new MySqlParameter("@CreateTime", MySqlDbType.DateTime),
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new MySqlParameter("@EntireTime", MySqlDbType.DateTime),
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new MySqlParameter("@Reserve1", MySqlDbType.VarChar,255),
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new MySqlParameter("@Reserve2", MySqlDbType.VarChar,255),
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new MySqlParameter("@Reserve3", MySqlDbType.VarChar,255),
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new MySqlParameter("@Reserve4", MySqlDbType.VarChar,255),
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new MySqlParameter("@Reserve5", MySqlDbType.VarChar,255),
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new MySqlParameter("@ElectricityId", MySqlDbType.VarChar,255)};
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parameters[0].Value = model.DeviceName;
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parameters[1].Value = model.EH;
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parameters[2].Value = model.P;
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parameters[3].Value = model.Kvar;
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parameters[4].Value = model.Ia;
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parameters[5].Value = model.Ib;
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parameters[6].Value = model.Ic;
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parameters[7].Value = model.Ua;
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parameters[8].Value = model.Ub;
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parameters[9].Value = model.Uc;
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parameters[10].Value = model.ServiceRating;
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parameters[11].Value = model.CreateTime;
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parameters[12].Value = model.EntireTime;
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parameters[13].Value = model.Reserve1;
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parameters[14].Value = model.Reserve2;
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parameters[15].Value = model.Reserve3;
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parameters[16].Value = model.Reserve4;
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parameters[17].Value = model.Reserve5;
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parameters[18].Value = model.ElectricityId;
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int rows=DbHelperMySQL.ExecuteSql(strSql.ToString(),parameters);
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if (rows > 0)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 删除一条数据
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/// </summary>
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public bool Delete(string ElectricityId)
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{
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StringBuilder strSql=new StringBuilder();
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strSql.Append("delete from electricity_data ");
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strSql.Append(" where ElectricityId=@ElectricityId ");
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MySqlParameter[] parameters = {
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new MySqlParameter("@ElectricityId", MySqlDbType.VarChar,255) };
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parameters[0].Value = ElectricityId;
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int rows=DbHelperMySQL.ExecuteSql(strSql.ToString(),parameters);
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if (rows > 0)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 批量删除数据
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/// </summary>
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public bool DeleteList(string ElectricityIdlist )
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{
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StringBuilder strSql=new StringBuilder();
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strSql.Append("delete from electricity_data ");
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strSql.Append(" where ElectricityId in ("+ElectricityIdlist + ") ");
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int rows=DbHelperMySQL.ExecuteSql(strSql.ToString());
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if (rows > 0)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 得到一个对象实体
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/// </summary>
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public DataService.Model.electricity_data GetModel(string ElectricityId)
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{
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StringBuilder strSql=new StringBuilder();
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strSql.Append("select ElectricityId,DeviceName,EH,P,Kvar,Ia,Ib,Ic,Ua,Ub,Uc,ServiceRating,CreateTime,EntireTime,Reserve1,Reserve2,Reserve3,Reserve4,Reserve5 from electricity_data ");
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strSql.Append(" where ElectricityId=@ElectricityId ");
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MySqlParameter[] parameters = {
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new MySqlParameter("@ElectricityId", MySqlDbType.VarChar,255) };
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parameters[0].Value = ElectricityId;
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DataService.Model.electricity_data model=new DataService.Model.electricity_data();
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DataSet ds=DbHelperMySQL.Query(strSql.ToString(),parameters);
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if(ds.Tables[0].Rows.Count>0)
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{
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return DataRowToModel(ds.Tables[0].Rows[0]);
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}
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else
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{
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return null;
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}
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}
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/// <summary>
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/// 得到一个对象实体
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/// </summary>
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public DataService.Model.electricity_data DataRowToModel(DataRow row)
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{
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DataService.Model.electricity_data model=new DataService.Model.electricity_data();
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if (row != null)
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{
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if(row["ElectricityId"]!=null)
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{
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model.ElectricityId=row["ElectricityId"].ToString();
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}
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if(row["DeviceName"]!=null)
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{
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model.DeviceName=row["DeviceName"].ToString();
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}
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if(row["EH"]!=null && row["EH"].ToString()!="")
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{
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model.EH=decimal.Parse(row["EH"].ToString());
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}
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if(row["P"]!=null && row["P"].ToString()!="")
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{
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model.P=decimal.Parse(row["P"].ToString());
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}
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if(row["Kvar"]!=null && row["Kvar"].ToString()!="")
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{
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model.Kvar=decimal.Parse(row["Kvar"].ToString());
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}
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if(row["Ia"]!=null && row["Ia"].ToString()!="")
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{
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model.Ia=decimal.Parse(row["Ia"].ToString());
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}
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if(row["Ib"]!=null && row["Ib"].ToString()!="")
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{
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model.Ib=decimal.Parse(row["Ib"].ToString());
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}
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if(row["Ic"]!=null && row["Ic"].ToString()!="")
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{
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model.Ic=decimal.Parse(row["Ic"].ToString());
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}
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if(row["Ua"]!=null && row["Ua"].ToString()!="")
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{
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model.Ua=decimal.Parse(row["Ua"].ToString());
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}
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if(row["Ub"]!=null && row["Ub"].ToString()!="")
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{
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model.Ub=decimal.Parse(row["Ub"].ToString());
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}
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if(row["Uc"]!=null && row["Uc"].ToString()!="")
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{
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model.Uc=decimal.Parse(row["Uc"].ToString());
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}
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if(row["ServiceRating"]!=null && row["ServiceRating"].ToString()!="")
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{
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model.ServiceRating=decimal.Parse(row["ServiceRating"].ToString());
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}
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if(row["CreateTime"]!=null && row["CreateTime"].ToString()!="")
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{
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model.CreateTime=DateTime.Parse(row["CreateTime"].ToString());
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}
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if(row["EntireTime"]!=null && row["EntireTime"].ToString()!="")
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{
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model.EntireTime=DateTime.Parse(row["EntireTime"].ToString());
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}
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if(row["Reserve1"]!=null)
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{
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model.Reserve1=row["Reserve1"].ToString();
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}
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if(row["Reserve2"]!=null)
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{
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model.Reserve2=row["Reserve2"].ToString();
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}
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if(row["Reserve3"]!=null)
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{
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model.Reserve3=row["Reserve3"].ToString();
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}
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if(row["Reserve4"]!=null)
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{
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model.Reserve4=row["Reserve4"].ToString();
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}
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if(row["Reserve5"]!=null)
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{
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model.Reserve5=row["Reserve5"].ToString();
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}
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}
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return model;
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}
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/// <summary>
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/// 获得数据列表
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/// </summary>
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public DataSet GetList(string strWhere)
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{
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StringBuilder strSql=new StringBuilder();
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strSql.Append("select ElectricityId,DeviceName,EH,P,Kvar,Ia,Ib,Ic,Ua,Ub,Uc,ServiceRating,CreateTime,EntireTime,Reserve1,Reserve2,Reserve3,Reserve4,Reserve5 ");
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strSql.Append(" FROM electricity_data ");
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if(strWhere.Trim()!="")
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{
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strSql.Append(" where "+strWhere);
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}
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return DbHelperMySQL.Query(strSql.ToString());
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}
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/// <summary>
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/// 获取记录总数
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/// </summary>
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public int GetRecordCount(string strWhere)
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{
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StringBuilder strSql=new StringBuilder();
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strSql.Append("select count(1) FROM electricity_data ");
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if(strWhere.Trim()!="")
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{
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strSql.Append(" where "+strWhere);
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}
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object obj = DbHelperSQL.GetSingle(strSql.ToString());
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if (obj == null)
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{
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return 0;
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}
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else
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{
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return Convert.ToInt32(obj);
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}
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}
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/// <summary>
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/// 分页获取数据列表
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/// </summary>
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public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
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{
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StringBuilder strSql=new StringBuilder();
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strSql.Append("SELECT * FROM ( ");
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strSql.Append(" SELECT ROW_NUMBER() OVER (");
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if (!string.IsNullOrEmpty(orderby.Trim()))
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{
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strSql.Append("order by T." + orderby );
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}
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else
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{
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strSql.Append("order by T.ElectricityId desc");
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}
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strSql.Append(")AS Row, T.* from electricity_data T ");
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if (!string.IsNullOrEmpty(strWhere.Trim()))
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{
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strSql.Append(" WHERE " + strWhere);
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}
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strSql.Append(" ) TT");
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strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
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return DbHelperMySQL.Query(strSql.ToString());
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}
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/*
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/// <summary>
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/// 分页获取数据列表
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/// </summary>
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public DataSet GetList(int PageSize,int PageIndex,string strWhere)
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{
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MySqlParameter[] parameters = {
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new MySqlParameter("@tblName", MySqlDbType.VarChar, 255),
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new MySqlParameter("@fldName", MySqlDbType.VarChar, 255),
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new MySqlParameter("@PageSize", MySqlDbType.Int32),
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new MySqlParameter("@PageIndex", MySqlDbType.Int32),
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new MySqlParameter("@IsReCount", MySqlDbType.Bit),
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new MySqlParameter("@OrderType", MySqlDbType.Bit),
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new MySqlParameter("@strWhere", MySqlDbType.VarChar,1000),
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};
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parameters[0].Value = "electricity_data";
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parameters[1].Value = "ElectricityId";
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parameters[2].Value = PageSize;
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parameters[3].Value = PageIndex;
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parameters[4].Value = 0;
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parameters[5].Value = 0;
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parameters[6].Value = strWhere;
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return DbHelperMySQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
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}*/
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#endregion BasicMethod
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#region ExtensionMethod
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/// <summary>
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/// 表是否存在
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/// </summary>
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/// <param name="dbName">数据库名</param>
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/// <param name="tableName">表名 格式：表名_yyyyMMdd</param>
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/// <returns></returns>
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public bool IsExistsTable(string dbName, string tableName)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append(string.Format("select count(1) from information_schema.tables where table_schema='{0}' and table_name='{1}' ", dbName, tableName));
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return DbHelperMySQL.Exists(strSql.ToString());
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}
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/// <summary>
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/// 添加表
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/// </summary>
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/// <param name="date">日期 格式：yyyyMM</param>
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/// <returns></returns>
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public void CreateTable(string date)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("CREATE TABLE `electricity_data_" + date + "` (");
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strSql.Append("`ElectricityId` varchar(255) NOT NULL COMMENT '用电Id',");
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strSql.Append("`DeviceName` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL COMMENT '设备名称',");
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strSql.Append("`EH` float(255,3) DEFAULT NULL COMMENT '用电量',");
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strSql.Append("`P` float(255,3) DEFAULT NULL COMMENT '实时负荷',");
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strSql.Append("`Kvar` float(255,3) DEFAULT NULL COMMENT '总无工功率',");
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strSql.Append("`Ia` float(255,3) DEFAULT NULL COMMENT 'A相电流',");
|
||
strSql.Append("`Ib` float(255,3) DEFAULT NULL COMMENT 'B相电流',");
|
||
strSql.Append("`Ic` float(255,3) DEFAULT NULL COMMENT 'C相电流',");
|
||
strSql.Append("`Ua` float(255,3) DEFAULT NULL COMMENT 'A相电压',");
|
||
strSql.Append("`Ub` float(255,3) DEFAULT NULL COMMENT 'B相电压',");
|
||
strSql.Append("`Uc` float(255,3) DEFAULT NULL COMMENT 'C相电压',");
|
||
strSql.Append("`ServiceRating` float(255,3) DEFAULT NULL COMMENT '运行功率',");
|
||
strSql.Append("`CreateTime` datetime DEFAULT NULL COMMENT '添加时间',");
|
||
strSql.Append("`EntireTime` datetime DEFAULT NULL COMMENT '整点时间',");
|
||
strSql.Append("`Reserve1` varchar(255) DEFAULT NULL,");
|
||
strSql.Append("`Reserve2` varchar(255) DEFAULT NULL,");
|
||
strSql.Append("`Reserve3` varchar(255) DEFAULT NULL,");
|
||
strSql.Append("`Reserve4` varchar(255) DEFAULT NULL,");
|
||
strSql.Append("`Reserve5` varchar(255) DEFAULT NULL,");
|
||
strSql.Append("PRIMARY KEY (`ElectricityId`)");
|
||
strSql.Append(") ENGINE=InnoDB DEFAULT CHARSET=utf8;");
|
||
DbHelperMySQL.ExecuteSql(strSql.ToString());
|
||
}
|
||
|
||
/// <summary>
|
||
///添加数据
|
||
/// </summary>
|
||
/// <param name="model"></param>
|
||
/// <param name="date"></param>
|
||
/// <returns></returns>
|
||
public bool AddDate(DataService.Model.electricity_data model, string date)
|
||
{
|
||
StringBuilder strSql = new StringBuilder();
|
||
strSql.Append("insert into electricity_data_" + date + "(");
|
||
strSql.Append("ElectricityId,DeviceName,EH,P,Kvar,Ia,Ib,Ic,Ua,Ub,Uc,ServiceRating,CreateTime,EntireTime,Reserve1,Reserve2,Reserve3,Reserve4,Reserve5)");
|
||
strSql.Append(" values (");
|
||
strSql.Append("@ElectricityId,@DeviceName,@EH,@P,@Kvar,@Ia,@Ib,@Ic,@Ua,@Ub,@Uc,@ServiceRating,@CreateTime,@EntireTime,@Reserve1,@Reserve2,@Reserve3,@Reserve4,@Reserve5)");
|
||
MySqlParameter[] parameters = {
|
||
new MySqlParameter("@ElectricityId", MySqlDbType.VarChar,255),
|
||
new MySqlParameter("@DeviceName", MySqlDbType.VarChar,255),
|
||
new MySqlParameter("@EH", MySqlDbType.Float,255),
|
||
new MySqlParameter("@P", MySqlDbType.Float,255),
|
||
new MySqlParameter("@Kvar", MySqlDbType.Float,255),
|
||
new MySqlParameter("@Ia", MySqlDbType.Float,255),
|
||
new MySqlParameter("@Ib", MySqlDbType.Float,255),
|
||
new MySqlParameter("@Ic", MySqlDbType.Float,255),
|
||
new MySqlParameter("@Ua", MySqlDbType.Float,255),
|
||
new MySqlParameter("@Ub", MySqlDbType.Float,255),
|
||
new MySqlParameter("@Uc", MySqlDbType.Float,255),
|
||
new MySqlParameter("@ServiceRating", MySqlDbType.Float,255),
|
||
new MySqlParameter("@CreateTime", MySqlDbType.DateTime),
|
||
new MySqlParameter("@EntireTime", MySqlDbType.DateTime),
|
||
new MySqlParameter("@Reserve1", MySqlDbType.VarChar,255),
|
||
new MySqlParameter("@Reserve2", MySqlDbType.VarChar,255),
|
||
new MySqlParameter("@Reserve3", MySqlDbType.VarChar,255),
|
||
new MySqlParameter("@Reserve4", MySqlDbType.VarChar,255),
|
||
new MySqlParameter("@Reserve5", MySqlDbType.VarChar,255)};
|
||
parameters[0].Value = model.ElectricityId;
|
||
parameters[1].Value = model.DeviceName;
|
||
parameters[2].Value = model.EH;
|
||
parameters[3].Value = model.P;
|
||
parameters[4].Value = model.Kvar;
|
||
parameters[5].Value = model.Ia;
|
||
parameters[6].Value = model.Ib;
|
||
parameters[7].Value = model.Ic;
|
||
parameters[8].Value = model.Ua;
|
||
parameters[9].Value = model.Ub;
|
||
parameters[10].Value = model.Uc;
|
||
parameters[11].Value = model.ServiceRating;
|
||
parameters[12].Value = model.CreateTime;
|
||
parameters[13].Value = model.EntireTime;
|
||
parameters[14].Value = model.Reserve1;
|
||
parameters[15].Value = model.Reserve2;
|
||
parameters[16].Value = model.Reserve3;
|
||
parameters[17].Value = model.Reserve4;
|
||
parameters[18].Value = model.Reserve5;
|
||
|
||
int rows = DbHelperMySQL.ExecuteSql(strSql.ToString(), parameters);
|
||
if (rows > 0)
|
||
{
|
||
return true;
|
||
}
|
||
else
|
||
{
|
||
return false;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获得数据列表
|
||
/// </summary>
|
||
public DataSet GetListDate(string strWhere, string date)
|
||
{
|
||
StringBuilder strSql = new StringBuilder();
|
||
strSql.Append("select ElectricityId,DeviceName,EH,P,Kvar,Ia,Ib,Ic,Ua,Ub,Uc,ServiceRating,CreateTime,EntireTime,Reserve1,Reserve2,Reserve3,Reserve4,Reserve5 ");
|
||
strSql.Append(" FROM electricity_data_" + date);
|
||
if (strWhere.Trim() != "")
|
||
{
|
||
strSql.Append(" where " + strWhere);
|
||
}
|
||
return DbHelperMySQL.Query(strSql.ToString());
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取数据
|
||
/// </summary>
|
||
/// <param name="source">数据来源</param>
|
||
/// <param name="strWhere">条件</param>
|
||
/// <param name="timeField">时间字段</param>
|
||
/// <returns></returns>
|
||
public DataSet GetList(string source, string strWhere, string timeField)
|
||
{
|
||
StringBuilder strSql = new StringBuilder();
|
||
strSql.Append("SELECT * FROM (" + source + ") as T ");
|
||
if (strWhere.Trim() != "")
|
||
{
|
||
strSql.Append(" where " + strWhere);
|
||
}
|
||
if (!string.IsNullOrEmpty(timeField))
|
||
{
|
||
strSql.Append("ORDER BY " + timeField + " ");
|
||
}
|
||
return DbHelperMySQL.Query(strSql.ToString(), 300);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取数据
|
||
/// </summary>
|
||
/// <param name="source">数据来源</param>
|
||
/// <param name="strWhere">条件</param>
|
||
/// <param name="sum_name">求和字段</param>
|
||
/// <returns></returns>
|
||
public decimal GetSum(string source, string strWhere, string sum_name)
|
||
{
|
||
StringBuilder strSql = new StringBuilder();
|
||
strSql.Append("SELECT sum(" + sum_name + ") FROM (" + source + ") as T ");
|
||
if (strWhere.Trim() != "")
|
||
{
|
||
strSql.Append(" where " + strWhere);
|
||
}
|
||
object obj = DbHelperSQL.GetSingle(strSql.ToString(), 300);
|
||
if (obj == null)
|
||
{
|
||
return 0;
|
||
}
|
||
else
|
||
{
|
||
return Convert.ToDecimal(obj);
|
||
}
|
||
}
|
||
|
||
#endregion ExtensionMethod
|
||
|
||
}
|
||
}
|
||
|