void m_cmd_cham_cong_lam_them_ItemClick(object sender, ItemClickEventArgs e) { try { f303_gd_cham_cong_lam_them v_f = new f303_gd_cham_cong_lam_them(); if(IsExistFormName(v_f)) return; v_f.MdiParent = this; v_f.Show(); } catch(Exception v_e) { CSystemLog_301.ExceptionHandle(v_e); } }