private void useGoogleBgRdo_CheckedChanged(object sender, EventArgs e) { bool chk = (sender as RadioButton).Checked; //RiverSimulationProfile p = RiverSimulationProfile.profile; if (chk) { if (p.DownloadGoogleStaticMap()) { mapPicBox.SetMapBackground(p.tl, p.tr, p.bl, p.br); } SwitchPreivewCombo(PreviewType.GridMap); UpdateStatus(); } }