public CDataEntity set_search(CDataEntity in_search_cdt){
		CDataEntity return_result = null;
		if(set_data == null){
			CGlobalDef.info_box("Set haven't initialized");
		}
		if(in_search_cdt.type == "@cdt_search"){
			return_result = set_data.search_struct_data(in_search_cdt.struct_data);
		}
		else{
			CGlobalDef.info_box("Set search's type is wrong");
		}
		return return_result;
	}