我有創建一個表suppliers1`create表suppliers1(添加特定列c#datagridview的
> sup_id NUMBER(20) PRIMARY KEY, sup_name VARCHAR2(40), sup_address
> varchar2(50), sup_phone NUMBER(15))
;
和插入值 '
> INSERT INTO suppliers1 (SUP_ID,SUP_NAME,SUP_ADDRESS,SUP_PHONE) VALUES
> (100,'PPS','Bds',99545414); INSERT INTO suppliers1
> (SUP_ID,SUP_NAME,SUP_ADDRESS,SUP_PHONE) VALUES
> (200,'Abcd','Dhaka',0295469); INSERT INTO suppliers1
> (SUP_ID,SUP_NAME,SUP_ADDRESS,SUP_PHONE) VALUES
> (300,'Xyz','Ctg',0896547556);
我有使用下面的命令負載數據
> OleDbDataAdapter adp = new OleDbDataAdapter("SELECT * FROM
> suppliers1", con);
> DataTable dt = new DataTable();
> adp.Fill(dt);
> dataGridView1.DataSource = dt;
但我想以編程方式添加特定的列,如sup_id或sup_name等,我已經嘗試了代碼,但是失敗了,怎麼可能呢?
String testValue2 = (String)dataGridView1["sup_id", 4]value;
我有嘗試,我失敗了,請你解釋一下 – brids