private void DoGetTopoTreeAsync(Action <PhysicalTopology> callback)
{
var clet = CreateServiceClient();
{
int view = 0; //0:基本数据; 1:设备信息; 2:人员信息; 3:设备信息 + 人员信息
if (topoRoot == null) //第二次进来就不从数据库获取了
{
clet.BeginGetPhysicalTopologyTree(view, (ar) =>
{
topoRoot = null;
try
{
LocationServiceClient client = ar.AsyncState as LocationServiceClient;
topoRoot = client.EndGetPhysicalTopologyTree(ar); //异步却不是多线程，服务端关闭时这里还是会卡住
client.Close(); //异步方式用完Close
}
catch (Exception ex)
{
LogError("CommunicationObject", ex.ToString());
}
DoCallBack(callback, topoRoot);
if (topoRoot == null)
{
LogError("GetTopoTree", "topoRoot == null");
}
else
{
Log.Info("GetTopoTree success 1!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
}
}, clet);
//clet.Close();
}
else
{
Log.Info("GetTopoTree success 2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
}
}
}