/// <summary> /// DataTable转换为list /// </summary> /// <param name="dt"></param> /// <returns></returns> protected static List <BookVolume> DataTableToList(DataTable dt) { List <BookVolume> Ms = new List <BookVolume>(); for (int i = 0; i < dt.Rows.Count; i++) { BookVolume M = new BookVolume(); M.ID = dt.Rows[i]["ID"].ToInt64(); M.BookID = dt.Rows[i]["BookID"].ToInt32(); M.Booktitle = dt.Rows[i]["booktitle"].ToString(); M.Booknclass = dt.Rows[i]["booknclass"].ToString(); Ms.Add(M); } return(Ms); }
/// <summary> /// 根据条件语句取得第一个实体 /// </summary> /// <param name="m_where">条件语句,不包含“where”</param> /// <returns></returns> public static BookVolume Find(string m_where) { IDbHelper Sql = GetHelper(); BookVolume M = new BookVolume(); DbDataReader Rs = Sql.ExecuteReader(CommandType.Text, "select [ID],[BookID],[booktitle],[booknclass] from [BookVolume] where " + m_where, true); if (!Rs.Read()) { M.ID = long.MinValue; } else { M.ID = Rs["ID"].ToInt64(); M.BookID = Rs["BookID"].ToInt32(); M.Booktitle = Rs["booktitle"].ToString(); M.Booknclass = Rs["booknclass"].ToString(); } Rs.Close(); Rs = null; return(M); }
/// <summary> /// 将修改过的实体修改到数据库 /// </summary> /// <param name="M">赋值后的实体</param> /// <returns></returns> public static int Update(BookVolume M) { IDbHelper Sql = GetHelper(); StringBuilder sb = new StringBuilder(); sb.Append("update [BookVolume] set "); sb.Append("[BookID]=" + M.BookID.ToS()); sb.Append(","); sb.Append("[booktitle]=N'" + M.Booktitle + "'"); sb.Append(","); sb.Append("[booknclass]=N'" + M.Booknclass + "'"); sb.Append(" where ID='" + M.ID + "'"); sb.Append(""); if (DataBase.CmsDbType == DataBase.DbType.SqlServer) { sb.Append(";select @@ROWCOUNT"); } if (DataBase.CmsDbType == DataBase.DbType.SQLite) { sb.Append(";select 0"); } if (DataBase.CmsDbType == DataBase.DbType.MySql) { sb.Append(";SELECT ROW_COUNT()"); } if (DataBase.CmsDbType == DataBase.DbType.Access) { sb.Append(";select 0"); } if (DataBase.CmsDbType == DataBase.DbType.Oracle) { sb.Append(";select SQL%ROWCOUNT"); } return(Sql.ExecuteScalar(CommandType.Text, sb.ToString()).ToInt32()); }
/// <summary> /// 将数据插入表 /// </summary> /// <param name="M">赋值后的实体</param> /// <returns></returns> public static void Insert(BookVolume M) { IDbHelper Sql = GetHelper(); StringBuilder sb = new StringBuilder(); sb.Append("insert into [BookVolume]([ID],[BookID],[booktitle],[booknclass]) values("); sb.Append(M.BookID.ToS()); sb.Append(","); sb.Append("N'" + M.Booktitle + "'"); sb.Append(","); sb.Append("N'" + M.Booknclass + "'"); sb.Append(")"); if (DataBase.CmsDbType == DataBase.DbType.SqlServer) { sb.Append(";select @@Identity"); } if (DataBase.CmsDbType == DataBase.DbType.SQLite) { sb.Append(";select last_insert_rowid()"); } if (DataBase.CmsDbType == DataBase.DbType.MySql) { sb.Append(";select LAST_INSERT_ID()"); } if (DataBase.CmsDbType == DataBase.DbType.Access) { sb.Append(";select max(ID) from BookVolume"); } if (DataBase.CmsDbType == DataBase.DbType.Oracle) { sb.Append(";select LAST_INSERT_ID()"); } M.ID = Sql.ExecuteScalar(CommandType.Text, sb.ToString()).ToInt32(); }
public static BookVolume CreateBookVolume(long id, int bookID) { BookVolume bookVolume = new BookVolume(); bookVolume.ID = id; bookVolume.BookID = bookID; return bookVolume; }
public void AddToBookVolume(BookVolume bookVolume) { base.AddObject("BookVolume", bookVolume); }