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InMemoryFeatureLayer is not displaying features

#1



//My WellKnownBinary is stored in a SQL database table which I am calling from my GetGeoZone method.  geoZoneModel.geoZoneLayersDS contains 

//the values of my data.  I have uploaded the results of the table for your reference and it is attached on this post.  Please see the code below.



            geoZoneModel.GetGeoZone();



            //create layer
            InMemoryFeatureLayer inMemoryFeatureLayer = new InMemoryFeatureLayer();



            inMemoryFeatureLayer.Open();



            //create columns
            inMemoryFeatureLayer.Columns.Add(new FeatureSourceColumn("Name"));



            //set shapes
            inMemoryFeatureLayer.FeatureSource.BeginTransaction();            
            //inMemoryFeatureLayer.EditTools.BeginTransaction();



            Feature geoZoneFeature;



            foreach (GeoZoneLayersDataStructure ds in geoZoneModel.geoZoneLayersDS)
            {                
                geoZoneFeature = new Feature(ds.ShapeWKB);              



                geoZoneFeature.ColumnValues.Add("Name", ds.GeoZoneName);
                
                inMemoryFeatureLayer.FeatureSource.AddFeature(geoZoneFeature);                
                //inMemoryFeatureLayer.InternalFeatures.Add(geoZoneFeature);
            }
            inMemoryFeatureLayer.FeatureSource.CommitTransaction();
            //inMemoryFeatureLayer.EditTools.CommitTransaction();



            inMemoryFeatureLayer.Close();



            return inMemoryFeatureLayer;



Is there something wrong with my code above?  because it is not displaying the shapes, what am i missing?



I call this function to add it on the map.



                MapSystemLayer ml = item.Value;



                FeatureLayer layer = ml.GetFeatureLayer();
                layer.Close();
                layer.FeatureSource.Projection = _proj4.CloneDeep();
                



                LayerOverlay layerOverlay = new LayerOverlay(ml.LayerName);
                layerOverlay.Layers.Add(ml.LayerName, layer);
                layerOverlay.JpegQuality = 50;
                layerOverlay.IsBaseOverlay = false;
                layerOverlay.TileType = TileType.SingleTile;
                layerOverlay.TransitionEffect = TransitionEffect.None;
                layerOverlay.WebImageFormat = WebImageFormat.Png;
                layerOverlay.ClientCache.CacheId = ml.LayerName;
                layerOverlay.IsVisible = true;// ml.Visible;



                map.CustomOverlays.Add(layerOverlay);



Please assist.


#2

Hi Raymond, 
  
 Thanks for your post, but it seems that the “the results of the table” is not uploaded successfully, would you please check it again?  
  
 From your code, I think the two potential problems  
  
 1st is that the map.CurrentExtent is not set correctly, would you please try to use, 
 map.CurrentExtent=layer.GetBoundingBox(); 
  
 2nd is that the map.MapUnit is not set correctly, map.MapUnit should be set the same with the data’s unit, if the data in under decimal degree then set map.MapUnit = GeographyUnit.DecimalDegree; if the data is under meter then set map.MapUnit = GeographyUnit.Meter; 
  
 Would you please check above two potential problems again, if the problem is still there, would you please upload your data again? 
  
 Waiting for your further information. 
  
 Best Regards 
  
 Summer