private void BtHoanTat_Click(object sender, EventArgs e)
{
DateTime now = DateTime.Today;
if (now.Year - Convert.ToInt32(txtNamXuatBan.Text) > Convert.ToInt32(txtGioiHanXuatBan.Text))
{
MessageBox.Show("Sách quá cũ!", "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
dl.LayGioiHanXuatBan = Convert.ToInt32(txtGioiHanXuatBan.Text);
dl.ID_TheLoaiSach = Convert.ToInt32(cboTheLoaiSach.SelectedValue.ToString());
dl.ID_TacGia = Convert.ToInt32(cboTacGia.SelectedValue.ToString());
//dl.ID_NXB = txtNhaXuatBan;
dl.Ten_Sach = txtTenSach.Text;
dl.Gia = Convert.ToInt32(txtTriGia.Text);
dl.Sl_Nhap = 0;
dl.MoTa = txtMoTa.Text;
dl.NamXuatBan = Convert.ToInt32(txtNamXuatBan.Text);
dl.NgayNhap = Convert.ToDateTime(dtpNgayNhap.Text);
dl.TrangThai_Sach = "";
dl.TrangThai_MuonSach = "";
xldl.Sach_INSERT(dl);
dtgSach.DataSource = xldl.Sach_Select(dl);
}
}