void m_cmd_lap_hop_dong_ItemClick(object sender, ItemClickEventArgs e) { try { f320_lap_hop_dong v_frm = new f320_lap_hop_dong(); if(IsExistFormName(v_frm)) return; v_frm.MdiParent = this; v_frm.Show(); } catch(Exception v_e) { CSystemLog_301.ExceptionHandle(v_e); } }