private void CargarConstantes()
 {
     var BE = new tb_pp_constantes();
     var BL = new tb_pp_constantesBL();
     var dt = new DataTable();
     BE.perianio = DateTime.Today.Year.ToString();
     dt = BL.GetAll(EmpresaID, BE).Tables[0];
     if (dt.Rows.Count > 0)
     {
         gastoadm.Text = Math.Round(Convert.ToDecimal(dt.Rows[0]["percgadm"]), 2).ToString();
         gastovta.Text = Math.Round(Convert.ToDecimal(dt.Rows[0]["percgvta"]), 2).ToString();
         gastofin.Text = Math.Round(Convert.ToDecimal(dt.Rows[0]["percgfin"]), 2).ToString();
     }
     else
     {
         gastoadm.Text = "0.00";
         gastovta.Text = "0.00";
         gastofin.Text = "0.00";
     }
 }
        private void Data_TablaConstantes()
        {
            try
            {
                if (cbo_perianio.SelectedIndex != -1)
                {
                    if (TablaConstantes.Rows.Count > 0)
                        TablaConstantes.Rows.Clear();

                    tb_pp_constantesBL BL = new tb_pp_constantesBL();
                    tb_pp_constantes BE = new tb_pp_constantes();

                    BE.perianio = cbo_perianio.SelectedValue.ToString();

                    TablaConstantes = BL.GetAll(EmpresaID, BE).Tables[0];
                    if (TablaConstantes.Rows.Count > 0)
                    {
                        btn_imprimir.Enabled = true;
                        MDI_dgb_constantes.DataSource = TablaConstantes;
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }