private void btn_timkiemlop_Click(object sender, EventArgs e) { KeyNoiCSDL_LOP.KetNoi_CSDL(); grdtimkiem.DataSource = null; string sql2 = "SELECT * FROM LOP WHERE MA_LOP like'" + txt_timkiem.Text + "' or TEN_LOP like '%" + txt_timkiem.Text + "%' or MA_GV like '" + txt_timkiem.Text + "'"; grdtimkiem.DataSource = KeyNoiCSDL_LOP.LoadDuLieu(sql2, "LOP"); }
private void btntimkiem_Click(object sender, EventArgs e) { frmtimkiem_lop f3 = new frmtimkiem_lop(); f3.Show(); KeyNoiCSDL_LOP.KetNoi_CSDL(); DataGvLop.DataSource = null; }