/// <summary> /// 更新一条数据 /// </summary> public bool Update(FriendshipMngSys.Model.DBFriendship model) { StringBuilder strSql = new StringBuilder(); strSql.Append("update Friendship set "); strSql.Append("PersonID=@PersonID,"); strSql.Append("FriendID=@FriendID"); strSql.Append(" where ID=@ID "); SQLiteParameter[] parameters = { new SQLiteParameter("@PersonID", DbType.String, 2147483647), new SQLiteParameter("@FriendID", DbType.String, 2147483647), new SQLiteParameter("@ID", DbType.String, 2147483647) }; parameters[0].Value = model.PersonID; parameters[1].Value = model.FriendID; parameters[2].Value = model.ID; int rows = DbHelperSQLite.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }
/// <summary> /// 增加一条数据 /// </summary> public bool Add(FriendshipMngSys.Model.DBFriendship model) { StringBuilder strSql = new StringBuilder(); strSql.Append("insert into Friendship("); strSql.Append("ID,PersonID,FriendID)"); strSql.Append(" values ("); strSql.Append("@ID,@PersonID,@FriendID)"); SQLiteParameter[] parameters = { new SQLiteParameter("@ID", DbType.String, 2147483647), new SQLiteParameter("@PersonID", DbType.String, 2147483647), new SQLiteParameter("@FriendID", DbType.String, 2147483647) }; parameters[0].Value = model.ID; parameters[1].Value = model.PersonID; parameters[2].Value = model.FriendID; int rows = DbHelperSQLite.ExecuteSql(strSql.ToString(), parameters); if (rows > 0) { return(true); } else { return(false); } }
/// <summary> /// 得到一个对象实体 /// </summary> public FriendshipMngSys.Model.DBFriendship DataRowToModel(DataRow row) { FriendshipMngSys.Model.DBFriendship model = new FriendshipMngSys.Model.DBFriendship(); if (row != null) { if (row["ID"] != null) { model.ID = row["ID"].ToString(); } if (row["PersonID"] != null) { model.PersonID = row["PersonID"].ToString(); } if (row["FriendID"] != null) { model.FriendID = row["FriendID"].ToString(); } } return(model); }
/// <summary> /// 得到一个对象实体 /// </summary> public FriendshipMngSys.Model.DBFriendship GetModel(string ID) { StringBuilder strSql = new StringBuilder(); strSql.Append("select ID,PersonID,FriendID from Friendship "); strSql.Append(" where ID=@ID "); SQLiteParameter[] parameters = { new SQLiteParameter("@ID", DbType.String, 2147483647) }; parameters[0].Value = ID; FriendshipMngSys.Model.DBFriendship model = new FriendshipMngSys.Model.DBFriendship(); DataSet ds = DbHelperSQLite.Query(strSql.ToString(), parameters); if (ds.Tables[0].Rows.Count > 0) { return(DataRowToModel(ds.Tables[0].Rows[0])); } else { return(null); } }