private void mnu_reg_Click_1(object sender, RoutedEventArgs e)
 {
     try
     {
         var td = new frm_tarife_pardakht();
         td.ShowDialog();
         SetDataGrid();
     }
     catch
     {
         throw;
     }
 }
        private void mnu_edit_Click_1(object sender, RoutedEventArgs e)
        {
            try
            {
                if (grdpardakht.SelectedValue == null)
                {
                    throw new Exception(Localize.ex_no_record_selected);
                }

                Guid id = (grdpardakht.SelectedValue as dynamic).ID;
                var  frm_tarife_daryaft = new frm_tarife_pardakht(id);
                frm_tarife_daryaft.ShowDialog();
                SetDataGrid();
            }
            catch
            {
                throw;
            }
        }