c++builder刷新datagrid

接受消息填充数据集,数据集绑在datagrid,页面不停地刷新似乎不好,可以过一会启用一下数据集
SetCursor(LoadCursor(NULL,   IDC_WAIT));//等待
            g_flag=true;
            frmMainInfo->dsWorkerInfo->Enabled=false;

然后:
if(time(NULL)-g_fresh>1 && g_flag){
                        g_fresh=time(NULL);
                        g_flag=false;
                        frmMainInfo->dsWorkerInfo->Enabled=true;
                        Application->ProcessMessages();
                        SetCursor(LoadCursor(NULL,   IDC_ARROW));//正常
                    }