OleDbCommand kmt = new OleDbCommand("Insert into pckayit(İsim,Adres,Telefon,Cihazadı,Serino,Tamirnotu,Ücret) VALUES  ('" + textBox1.Text + "','" + textBox2.Text + "','" + textBox3.Text + "','" + textBox4.Text + "','" + textBox5.Text + "','" + textBox6.Text + "')", baglan);
                kmt.ExecuteReader();