internal void validaTipoIgvDetalle()
        {
            string xcodigo = "";
            sw_novaluechange = true;
            if (GridExaminar.Rows[GridExaminar.CurrentRow.Index].Cells["afectoigvid"].Value == DBNull.Value)
            {
                GridExaminar.Rows[GridExaminar.CurrentRow.Index].Cells["afectoigvid"].Value = "";
            }
            xcodigo = GridExaminar.Rows[GridExaminar.CurrentRow.Index].Cells["afectoigvid"].Value.ToString();
            if (xcodigo.Trim().Length > 0)
            {
                tb_co_tributoafectoventasBL BL = new tb_co_tributoafectoventasBL();
                tb_co_tributoafectoventas BE = new tb_co_tributoafectoventas();

                BE.destinoid = xcodigo;
                tmptabla = BL.GetAll(VariablesPublicas.EmpresaID.ToString(), BE).Tables[0];

                if (tmptabla.Rows.Count > 0)
                {
                    GridExaminar.Rows[GridExaminar.CurrentRow.Index].Cells["afectoigvid"].Value = tmptabla.Rows[0]["destinoid"];
                    // GridExaminar.Rows[ GridExaminar.CurrentRow.Index].Cells["ddestino"].Value = tmptabla.Rows[0]["DESCRIP"];
                    txtDescripcampo.Text = tmptabla.Rows[0]["destinoname"].ToString();
                }
                else
                {
                    GridExaminar.Rows[GridExaminar.CurrentRow.Index].Cells["afectoigvid"].Value = j_Destino;
                }
            }
            else
            {
                GridExaminar.Rows[GridExaminar.CurrentRow.Index].Cells["afectoigvid"].Value = j_Destino;
            }
            sw_novaluechange = false;
            totalizarItem();
        }
        private BindingSource NewMethodDestino()
        {
            tb_co_tributoafectoventasBL BL = new tb_co_tributoafectoventasBL();
            tb_co_tributoafectoventas BE = new tb_co_tributoafectoventas();

            DataTable table = BL.GetAll(VariablesPublicas.EmpresaID.ToString(), BE).Tables[0];
            DataRowCollection rows = table.Rows;

            object[] cell;
            Dictionary<string, string> dic = new Dictionary<string, string>();
            BindingSource binding = new BindingSource();

            foreach (DataRow item in rows)
            {
                cell = item.ItemArray;
                dic.Add(cell[0].ToString(), cell[0].ToString() + " - " + cell[1].ToString());
                cell = null;
            }
            binding.DataSource = dic;
            return binding;
        }
        public void validaTipoIgv()
        {
            string xcodigo = "";
            xcodigo = Equivalencias.Left(cboDestinoigv.Text, 1);
            tb_co_tributoafectoventasBL BL = new tb_co_tributoafectoventasBL();
            tb_co_tributoafectoventas BE = new tb_co_tributoafectoventas();

            BE.destinoid = xcodigo;
            tmptabla = BL.GetAll(VariablesPublicas.EmpresaID.ToString(), BE).Tables[0];
            if (tmptabla.Rows.Count > 0)
            {
                xcodigo = tmptabla.Rows[0]["destinoid"].ToString();
                if (!(Equivalencias.Left(cboDestinoigv.Text, 1) == "3"))
                {
                    sw_novaluechange = true;
                    if ((DetFacturacion != null))
                    {
                        if (DetFacturacion.Rows.Count > 0)
                        {
                            DetFacturacion.Rows[lc_contador]["afectoigvid"] = Equivalencias.Left(cboDestinoigv.Text, 1);
                        }
                    }
                    sw_novaluechange = false;
                }
            }
            else
            {
                cboDestinoigv.ValueMember = j_String;
            }
            GridExaminar.Refresh();
            refrescacontroles();
        }
        private void POnerDatos()
        {
            var sorted = default(SortOrder);
            var xnomcolumna = string.Empty;

            var BL = new tb_co_tributoafectoventasBL();
            var BE = new tb_co_tributoafectoventas();

            var Tipoigv = BL.GetAll(VariablesPublicas.EmpresaID.ToString(), BE).Tables[0];

            dgAyuda.AutoGenerateColumns = false;
            dgAyuda.DataSource = Tipoigv;
            if (xnomcolumna.Trim().Length > 0)
            {
                if (sorted == SortOrder.Ascending)
                {
                    dgAyuda.Sort(dgAyuda.Columns[xnomcolumna], System.ComponentModel.ListSortDirection.Ascending);
                }
                else
                {
                    dgAyuda.Sort(dgAyuda.Columns[xnomcolumna], System.ComponentModel.ListSortDirection.Descending);
                }
            }
            else
            {
                dgAyuda.Sort(dgAyuda.Columns["destinoid"], System.ComponentModel.ListSortDirection.Ascending);
            }
        }