private string GetList(int groupID)
        {
            if (groupID == 1 || groupID == 2)
            {
                if (LocatingServiceUtil.IsAvailable())
                {
                    IServiceApi     serviceApi = LocatingServiceUtil.Instance <IServiceApi>();
                    TagStatusView[] tagsView   = serviceApi.GetTagOnSentry();

                    if (tagsView == null)
                    {
                        return("");
                    }
                    var q = tagsView.Where(_d => _d != null && _d.HostTag.HostGroupId.Contains(groupID)).Select(_d => new { HostId = _d.HostTag.HostId, HostName = _d.HostTag.HostName, Mac = _d.Mac, HostPhotoPath = "../TagUsers/UserPhoto.ashx?id=" + _d.HostTag.HostId });

                    StringBuilder sb = new StringBuilder("");
                    foreach (var log in q)
                    {
                        sb.AppendFormat(@" 
                                    <td width=4></td>
                                    <td width=100 align=center valign=top><img src={0} width=100 height=120 /><br/><br/> 姓名:{1}<br/> 标签:{2}</td>
                                    ", log.HostPhotoPath, log.HostName, log.Mac);
                    }
                    if (sb.Length > 0)
                    {
                        sb.Insert(0, "<table border=0 cellspacing=0 cellpadding=0><tr>");
                        sb.Append("</tr></table>");
                    }
                    return(sb.ToString());
                }
            }
            return("");
        }