只能在datagridview中获取搜索到的Id数据，重命名数据不应该是可见的

Question

    OleDbConnection conn = new OleDbConnection();
                conn.ConnectionString = customer.Properties.Settings.Default.Db;
                OleDbDataAdapter sda = new OleDbDataAdapter(@"SELECT tbl_Customer.CustomerID,tbl_Customer_Trans.Date,tbl_Customer_Trans.DailyEntry,tbl_Customer_Trans.DailyInt, tbl_Customer_Trans.Fine  
    FROM tbl_Customer ,tbl_Customer_Trans  
    WHERE  tbl_Customer.CustomerID = tbl_Customer_Trans.CustomerID;", conn);
                DataTable dt = new DataTable();
                sda.Fill(dt);
                dataGridView1.Rows.Clear();

                foreach (DataRow item in dt.Rows)
                {
                    int n = dataGridView1.Rows.Add();
                    dataGridView1.Rows[n].Cells[0].Value = item["CustomerID"].ToString();
                    dataGridView1.Rows[n].Cells[1].Value = item["Date"].ToString();
                    dataGridView1.Rows[n].Cells[2].Value = item["DailyEntry"].ToString();
                    dataGridView1.Rows[n].Cells[3].Value = item["DailyInt"].ToString();
                    dataGridView1.Rows[n].Cells[4].Value = item["Fine"].ToString();
                    int a = Convert.ToInt32(dataGridView1.Rows[n].Cells[2].Value);
                    int b = Convert.ToInt32(dataGridView1.Rows[n].Cells[3].Value);
                    int c = Convert.ToInt32(dataGridView1.Rows[n].Cells[4].Value);
                    int d = a + b + c ;
                    dataGridView1.Rows[n].Cells[5].Value = d;
                }

当用户在文本框中输入Id时，只有输入的ID数据应该是可见的，如果用户输入ID = 1，那么在id 1上保存在表中的值应该是可见的。使用我的代码，所有值都存在于表是可见的