/// <summary> /// 更新一条数据 /// </summary> public bool Update(Maticsoft.Model.BookComment model) { StringBuilder strSql = new StringBuilder(); strSql.Append("update BookComment set "); strSql.Append("Msg=@Msg,"); strSql.Append("CreateDateTime=@CreateDateTime,"); strSql.Append("BookId=@BookId"); strSql.Append(" where Id=@Id"); SqlParameter[] parameters = { new SqlParameter("@Msg", SqlDbType.NVarChar, -1), new SqlParameter("@CreateDateTime", SqlDbType.DateTime), new SqlParameter("@BookId", SqlDbType.Int, 4), new SqlParameter("@Id", SqlDbType.Int, 4) }; parameters[0].Value = model.Msg; parameters[1].Value = model.CreateDateTime; parameters[2].Value = model.BookId; parameters[3].Value = model.Id; int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }
/// <summary> /// 增加一条数据 /// </summary> public int Add(Maticsoft.Model.BookComment model) { StringBuilder strSql = new StringBuilder(); strSql.Append("insert into BookComment("); strSql.Append("Msg,CreateDateTime,BookId)"); strSql.Append(" values ("); strSql.Append("@Msg,@CreateDateTime,@BookId)"); strSql.Append(";select @@IDENTITY"); SqlParameter[] parameters = { new SqlParameter("@Msg", SqlDbType.NVarChar, -1), new SqlParameter("@CreateDateTime", SqlDbType.DateTime), new SqlParameter("@BookId", SqlDbType.Int, 4) }; parameters[0].Value = model.Msg; parameters[1].Value = model.CreateDateTime; parameters[2].Value = model.BookId; object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters); if (obj == null) { return(0); } else { return(Convert.ToInt32(obj)); } }
/// <summary> /// 得到一个对象实体 /// </summary> public Maticsoft.Model.BookComment DataRowToModel(DataRow row) { Maticsoft.Model.BookComment model = new Maticsoft.Model.BookComment(); if (row != null) { if (row["Id"] != null && row["Id"].ToString() != "") { model.Id = int.Parse(row["Id"].ToString()); } if (row["Msg"] != null) { model.Msg = row["Msg"].ToString(); } if (row["CreateDateTime"] != null && row["CreateDateTime"].ToString() != "") { model.CreateDateTime = DateTime.Parse(row["CreateDateTime"].ToString()); } if (row["BookId"] != null && row["BookId"].ToString() != "") { model.BookId = int.Parse(row["BookId"].ToString()); } } return(model); }
/// <summary> /// 得到一个对象实体 /// </summary> public Maticsoft.Model.BookComment GetModel(int Id) { StringBuilder strSql = new StringBuilder(); strSql.Append("select top 1 Id,Msg,CreateDateTime,BookId from BookComment "); strSql.Append(" where Id=@Id"); SqlParameter[] parameters = { new SqlParameter("@Id", SqlDbType.Int, 4) }; parameters[0].Value = Id; Maticsoft.Model.BookComment model = new Maticsoft.Model.BookComment(); DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters); if (ds.Tables[0].Rows.Count > 0) { return(DataRowToModel(ds.Tables[0].Rows[0])); } else { return(null); } }