記錄Access數據庫更新操作大坑一個

　　對於更新Access數據庫的操作，必須保持參數數組與sql語句中參數順序一致，如下：

 public bool Update(MyModel model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update table1 set ");
            strSql.Append(" column1 = @column1 , ");
            strSql.Append(" column2 = @column2, ");
            strSql.Append(" where ID=@ID ");

            OleDbParameter[] parameters =
                {
                    // 必須要這個順序 ヾ(。￣□￣)ﾂ゜゜゜
                    new OleDbParameter("@column1", OleDbType.Integer, 4),
                    new OleDbParameter("@column2", OleDbType.Integer, 4),
                    new OleDbParameter("@ID", OleDbType.Integer, 4)
                };

            parameters[0].Value = model.column1;
            parameters[1].Value = model.column1;
            parameters[2].Value = model.ID;

            int rows = DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

　　如果改成下面這樣，順序不一致了，就妥妥的更新失敗，還不報任何異常。。。。

        public bool Update(MyModel model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update table1 set ");
            strSql.Append(" column1 = @column1 , ");
            strSql.Append(" column2 = @column2, ");
            strSql.Append(" where ID=@ID ");

            OleDbParameter[] parameters =
                {
                    // 順序與sql語句不一致了 ヾ(。￣□￣)ﾂ゜゜゜
                    new OleDbParameter("@ID", OleDbType.Integer, 4),
                    new OleDbParameter("@column1", OleDbType.Integer, 4),
                    new OleDbParameter("@column2", OleDbType.Integer, 4)
                };

            parameters[0].Value = model.ID;
            parameters[1].Value = model.column1;
            parameters[2].Value = model.column1;

            int rows = DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }