private void select_tipodoc()
        {
            try
            {
                if (cmb_ordprod.SelectedIndex != -1 && cmb_ordprod.SelectedIndex != 0)
                {
                    var BL = new tb_pp_ordenserieBL();
                    var BE = new tb_pp_ordenserie();
                    var dt = new DataTable();

                    BE.perianio = cmb_ordprod.SelectedValue.ToString().Trim();
                    BE.ser_op = cmb_ordprod.Text.ToString().Trim();
                    dt = BL.GetAll_NUM(EmpresaID, BE).Tables[0];
                    if (dt.Rows.Count > 0)
                    {
                        txt_numop.Text = dt.Rows[0]["numop"].ToString();
                        cmb_perianio.SelectedValue = cmb_ordprod.SelectedValue.ToString();
                    }
                    else
                    {
                        MessageBox.Show("Asignar la Accion del Documento", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                else
                {
                    txt_numop.Text = string.Empty;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
 void CargarSerieOP2()
 {
     tb_pp_ordenserieBL BL = new tb_pp_ordenserieBL();
     tb_pp_ordenserie BE = new tb_pp_ordenserie();
     DataTable dt = new DataTable();
     dt = BL.GetAll(EmpresaID, BE).Tables[0];
     cmb_serie01.DataSource = dt;
     cmb_serie01.ValueMember = "perianio";
     cmb_serie01.DisplayMember = "ser_op";
 }