private void Delete()
        {
            try
            {
                if (ctacte.Text.Trim().Length == 0)
                {
                    MessageBox.Show("Ingrese Proveedor/Cliente !!!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }
                else
                {
                    if (numdoc.Text.Trim().Length == 6)
                    {
                        var BL = new tb_cm_liquidadetBL();
                        var BE = new tb_cm_liquidadet();

                        BE.tipdoc = tipdoc.Text.ToString();
                        BE.serdoc = moduloiddes.SelectedValue.ToString();
                        BE.numdoc = serdoc.Text.Trim() + numdoc.Text.Trim();
                        BE.usuar = VariablesPublicas.Usuar.ToString().Trim();
                        if (BL.Delete(EmpresaID, BE))
                        {
                            NIVEL_FORMS();
                            MessageBox.Show("Datos Eliminados Correctamente !!!", "InformaciĆ³n", MessageBoxButtons.OK, MessageBoxIcon.Information);
                            limpiar_documento();
                            form_bloqueado(false);
                            tipdoc.Enabled = false;
                            numdoc.Enabled = false;
                            btn_nuevo.Enabled = true;
                            btn_primero.Enabled = true;
                            btn_anterior.Enabled = true;
                            btn_siguiente.Enabled = true;
                            btn_ultimo.Enabled = true;

                            btn_salir.Enabled = true;
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
        private void _CargarDetalleImportacion()
        {
            var BE = new tb_cm_liquidadet();
            var BL = new tb_cm_liquidadetBL();
            var dt = new DataTable();

            BE.tipdoc = tipdoc.Text.Trim();
            BE.serdoc = moduloiddes.SelectedValue.ToString();

            var n_doc = string.Empty;
            if (numdoc.Text.Trim().Length > 0)
            {
                n_doc = numdoc.Text.Trim().PadLeft(6, '0');
            }
            BE.numdoc = serdoc.Text.ToString().Trim() + n_doc.ToString().Trim();

            dt = BL.GetAll(EmpresaID, BE).Tables[0];
            if (dt.Rows.Count > 0)
            {
                dgb_importacion2.DataSource = dt;
            }
        }