private void btnBan_Click(object sender, EventArgs e)
{
Button btnBan = sender as Button;
lblTenBan.Text = btnBan.Text;
maBan = btnBan.Name.ToString();
lblMaHoaDon.Text = bllBanHang.GetMaHoaDonOfBan(maBan);
lblTongTien.Text = GetTongTien(lblMaHoaDon.Text);
if (lblMaHoaDon.Text != "")
{
LoadChiTietHoaDon(lblMaHoaDon.Text);
lblGioVao.Text = GetGioVao(lblMaHoaDon.Text);
}
else
{
grcChiTietHoaDon.DataSource = null;
lblGioVao.Text = "";
}
if (btnBan.BackColor == Color.DarkGreen)
{
lblTrangThai.Text = "Trống";
btnMoBan.Visible = true;
btnDongBan.Visible = false;
btnThanhToan.Enabled = false;
btnDoiBan.Visible = false;
}
else
{
if (grvChiTietHoaDon.FocusedRowHandle < 0)
{
btnDongBan.Visible = true;
}
else
{
btnDongBan.Visible = false;
}
lblTrangThai.Text = "Có khách";
btnMoBan.Visible = false;
btnThanhToan.Enabled = true;
btnDoiBan.Visible = true;
}
}