Add FeatureReader to acSelection

[Anonymous]

Hi there, 

I'm trying to add all fdo layer features to MgSelectionBase so I can turn on/off map layer features depending on the selection query.

here is what I have: 

AcMapLayer maplayer = AcMapFeatureEntityService.GetLayer(objId); //objId is from prompt selection

MgFeatureQueryOptions queryOpts = new MgFeatureQueryOptions(); 
queryOpts.SetFilter("PRIMARYINDEX > 0"); //select everything on the layer

MgResourceIdentifier fsId = new MgResourceIdentifier(maplayer.GetFeatureSourceId());
MgFeatureService fs = AcMapServiceFactory.GetService(MgServiceType.FeatureService) as MgFeatureService; 

MgFeatureReader featureReader = fs.SelectFeatures(fsId, maplayer.FeatureClassName, queryOpts);

AcMapSelection selBaseAll = new AcMapSelection(AcMapMap.GetCurrentMap());

//populate selection with all features
selBaseAll.AddFeatures(maplayer, featureReader, 0);

//hide all features
maplayer.SetFeatureVisibility(selBaseAll, false);
.
.
//turn on features that is passed as parameter to fn.

This works if the layer source is SDF file, but if the layer source is sql spatial, i get an error "An exceotion occured in FDO component. Property "GwsId" not defined for class "Classname"".  this is on line: selBase.AddFeatures(..);

That field "GwsId" doesn't exists in database, if you open it in sql studio.. what am I doing wrong?

Thank you, 

-dm

[Daniel.Du]

When Map 3D connects to FDO data stores like Oracle/Sql Server and add layers to map, it will cache the data and use "GwsId" as identity key. Following code snippet works fine for Sql Server Spatial data store : 

        [CommandMethod("SetVisible")]

        public void SetVisible()

        {

            SetFeatureVisibility(true);

        }

        [CommandMethod("setInvisible")]

        public void SetInvisible()

        {

            SetFeatureVisibility(false);

        }

        public void SetFeatureVisibility( bool visible )

        {

            AcMapMap map = AcMapMap.GetCurrentMap();

            MgLayerCollection layers = map.GetLayers();

            MgLayerBase layer = layers.GetItem("FeatureClass1");

            AcMapLayer mapLayer = layer as AcMapLayer;

            MgFeatureQueryOptions opts = new MgFeatureQueryOptions();

            opts.SetFilter("ID > 0");

            MgResourceIdentifier featureId = new MgResourceIdentifier(mapLayer.GetFeatureSourceId());

            MgFeatureReader reader = mapLayer.SelectFeatures(opts);

            AcMapSelection selection = new AcMapSelection(map);

            selection.AddFeatures(mapLayer, reader, 0);

            reader.Close();

            mapLayer.SetFeatureVisibility(selection, visible);

        }

[dr5156]

Hi

I have a question.

i would like to turn OFF/ON some set of FDO layers(Enterprises(Topobase Layers)).

The code is not working for me. Please help me

AcMapMap acMap = AcMapMap.GetCurrentMap();

MgLayerCollectionlayers = acMap.GetLayers();

if (layers != null&& layers.Count > 0)

{

foreach (MgLayerBase layer inlayers)

{

if(layer.GetVisible())

{

layer.SetVisible(

false);

//layer.Visible = false;//layer.ForceRefresh();

}

//if (layer.GetDisplayInLegend())//{// layer.DisplayInLegend = false;// layer.SetDisplayInLegend(false);// layer.ForceRefresh();//}

}

}

//AcMapMap.ForceScreenRefresh();