Engine加载服务后如何对图层进行查询？

IAGSServerObjectName pSOName = null; 

IAGSServerObjectName psoname = null; 

IAGSServerConnection con = new AGSServerConnection(); 

IAGSServerConnectionFactory2 confactory = new AGSServerConnectionFactory() as IAGSServerConnectionFactory2; 

IPropertySet propertyset = new PropertySet(); 

IMapServerLayer mapserverlayer = new MapServerLayerClass(); 



propertyset.SetProperty(URL, http://192.168.100.139:6080/arcgis/rest/services); 

con = confactory.Open(propertyset, 0); 



IAGSEnumServerObjectName enumSOName = con.ServerObjectNames; 





pSOName = enumSOName.Next(); 

while (pSOName != null) 

{ 

if (pSOName.Name == svName) 

{ 

psoname = pSOName; 

break; 

} 

pSOName = enumSOName.Next(); 

} 

IName pName = psoname as IName; 

IMapServer mapserver = pName.Open() as IMapServer; 

mapserverlayer.ServerConnect(pSOName, mapserver.DefaultMapName); 

axMapControl1.AddLayer(mapserverlayer as ILayer); 



IQueryFilter qf = new QueryFilterClass(); 

qf.WhereClause = FID < 800; 

IRecordSet recordSet = mapserver.QueryFeatureData(mapserver.DefaultMapName, 0, qf);