private void UpdateTFUnit(int mod) { TechnoType tt = cmbTFUnit.SelectedItem as TechnoType; TaskForce tf = SelectedTaskForce(); if (tf.Mod(tt, mod) != 0) { olvTFUnits.SetObjects(tf); } else { TaskForceEntry tfe = tf.SingleOrDefault(s => s.Unit == tt); olvTFUnits.RefreshObject(tfe); } UpdateTFCost(); }