private void listMain_DoubleClick(object sender, System.EventArgs e) { if (listMain.SelectedIndex == -1 || (checkMulti.Checked && PrefC.IsODHQ)) //If user is in checkMulti state, disable doubleclick { return; } ListSelectedLists = listMain.GetListSelected <TaskList>().Select(x => x.TaskListNum).ToList(); DialogResult = DialogResult.OK; }