private void dgv_sach_RowHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
bt_timkiem.Enabled = false;
bt_them.Enabled = true;
bt_capnhat.Enabled = true;
bt_xoa.Enabled = true;
bt_capnhat.Enabled = true;
tb_gianhapden.Enabled = false;
tb_giaxuatden.Enabled = false;
tb_ma.Enabled = false;
string i = dgv_sach.Rows[e.RowIndex].Cells[1].Value.ToString();
int id = Convert.ToInt16(i);
var res = SachService.GetBookById(id);
tb_ma.Text = res.ma.ToString();
tb_ten.Text = res.ten;
tb_mota.Text = res.mota;
tb_gianhap.Text = res.gianhap.ToString();
tb_giaxuat.Text = res.giaxuat.ToString();
cb_nhaxb.SelectedValue = res.nhaxb.id;
cb_danhmuc.SelectedValue = res.cat.id;
if (res.img != null)
{
img = res.img;
pictureBox1.Image = byteArrayToImage(res.img);
pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
}
}
