wxGrid * grid = GetView();
wxGridTableMessage msg(this, wxGRIDTABLE_NOTIFY_ROWS_APPENDED, m_rowtotal);
grid->ProcessTableMessage(msg);
wxGrid * grid = GetView();
wxGridTableMessage msg(this, wxGRIDTABLE_NOTIFY_ROWS_APPENDED, m_rowtotal);
grid->ProcessTableMessage(msg);