public void reset() { textBox_search_keywords.Clear(); textBox_freeText.Clear(); listBox_lv3.Items.Clear(); listBox_lv2.Items.Clear(); consMgr.setDiffLv1(listBox_lv1); listBox_selectedDiffResult.Items.Clear(); foreach (PermissibleValueObj o in selectedDiffResult) { listBox_selectedDiffResult.Items.Add(o); } }