private void Modif_Ver_Doc_Closed(object sender, EventArgs e)
        {
            Modif_Ver_Doc ventana = sender as Modif_Ver_Doc;

            Refresh_Docs();
            // (refrescar)
            //QuitarEfecto(this);
            this.IsEnabled = true;
        }
        private void btn_editar_Click(object sender, RoutedEventArgs e)
        {
            // Se debe capturar el código
            DataRowView row = (DataRowView)((Button)e.Source).DataContext;

            string codigo = (String)row["id"].ToString();
            string tipo   = (String)row["tipo"].ToString();

            if (!Modif_Ver_Doc._activo_form)
            {
                Modif_Ver_Doc frm2 = new Modif_Ver_Doc(codigo, tipo, _cod_ent, _tipo_ent, "A");
                frm2.Owner = this;
                //AplicarEfecto(this);
                this.IsEnabled = false;
                frm2.Show();
                Modif_Ver_Doc._activo_form = true;
                frm2.Closed += Modif_Ver_Doc_Closed;
            }
        }