void m_cmd_ql_thuong_hsbs_ItemClick(object sender, ItemClickEventArgs e) { try { //f301_tinh_thu_nhap_khac_le_tet v_frm = new f301_tinh_thu_nhap_khac_le_tet(); //if (IsExistFormName(v_frm)) return; //v_frm.MdiParent = this; //v_frm.Show(); } catch(Exception) { throw; } }