public object GetStrongestRssiTag()
{
string Mes = "";
int TagID = 0;
string TagMAC = "";
int Error = 0;// 标签可用 = 0 ; 标签已经被绑定 =1 ; LocatingService不可用时 = 2 ; 没有扫描到可用的标签 = 3
if (LocatingServiceUtil.IsAvailable())
{
IServiceApi serviceApi = LocatingServiceUtil.Instance <IServiceApi>();
string mac = serviceApi.GetTagOnReception();
if (mac == null)
{
mac = "";
}
AppDataContext db = new AppDataContext();
IQueryable <Tag> tags = db.Tags.Where(_d => _d.TagMac.ToLower().Trim() == mac.ToLower().Trim());
if (tags.Count() == 1)
{
Tag tag = tags.First();
IQueryable <HostTag> hostTags = db.HostTags.Where(_d => _d.TagId == tag.Id);
if (hostTags.Count() > 0)
{
Mes = string.Format("×当前信号最强的标签MAC地址是{0}，但已经被绑定，标签不可用。", tag.TagMac);
Error = 1;
}
else
{
Mes = string.Format("√当前信号最强的标签MAC地址是{0}，标签可用。", tag.TagMac);
TagID = tag.Id;
TagMAC = tag.TagMac;
Error = 0;
}
}
else
{
Mes = "暂时没有扫描到可用的标签！";
Error = 3;
}
}
else
{
Mes = "LocatingService不可用";
Error = 2;
}
return(new { Mes, TagID, TagMAC, Error });
}
