private void GetMailBody(object param) { if (SelectedMail == null) { return; } using (new BusyIndicator()) { IsBrowserVisible = false; try { SelectedMailText = _mailbox.GetMailBody(SelectedMail.Id); } catch (Exception ex) { MessageBox.Show(ex.Message, "Произошла ошибка!", MessageBoxButton.OK, MessageBoxImage.Error); } IsInputMailVisible = false; IsBrowserVisible = !IsInputMailVisible; } }