[mapguide-users] Create feature source

[Lee Wade]

I am new to MGOS and am having some trouble creating an oracle feature
source in a file called query.aspx that allows a search to be performed
on an oracle table. The query was previously performed on an SDF file. A
copy of the part of the code that creates the feature source is below:

 

                // Create the Feature Source (SDF)

 

                MgFeatureSchema sdfSchema = this.CreateFilterSchema();

                MgCreateSdfParams sdfParams = new
MgCreateSdfParams("MAPCS", map.GetMapSRS(), sdfSchema);

                featureService.CreateFeatureSource(sdfResId, sdfParams);

 

                // Create the Layer

 

                MgResourceIdentifier layerResId = new
MgResourceIdentifier("Session:" + GetParameter(this.args, "SESSION") +
"//Filter.LayerDefinition");

                String layerDefinition =
File.ReadAllText(GetQueryXmlTemplatePath());

                layerDefinition = layerDefinition.Replace("%s",
sdfResId.ToString());

 

                MgByteReader reader = new MgByteReader(layerDefinition,
"text/xml");

                resourceService.SetResource(layerResId, reader, null);

 

                layer = new MgLayer(layerResId, resourceService);

 

                layer.SetName("_QuerySpatialFilter");

                layer.SetLegendLabel("_QuerySpatialFilter");

                layer.SetDisplayInLegend(false);

                layer.SetSelectable(false);

 

                layers.Insert(0, layer);

            }

 

            // Make the layer visible

 

            layer.SetVisible(true);

            map.Save(resourceService);

 

            // Add the geometry to the filter feature source

 

            MgPolygon polygon =
this.CreatePolygonFromGeomText(GetParameter(this.args, "GEOMTEXT"));

            MgAgfReaderWriter agfWriter = new MgAgfReaderWriter();

            MgByteReader byteReader = agfWriter.Write(polygon);

 

            MgPropertyCollection propertyValues = new
MgPropertyCollection();

            propertyValues.Add(new MgGeometryProperty("Geometry",
byteReader));

 

            updateCommands.Add(new MgInsertFeatures("Filter",
propertyValues));

 

            featureService.UpdateFeatures(sdfResId, updateCommands,
false);

 

            return result;

        }

 

Can anyone point me in the right direction to research the code to
replace the sdf file with the oracle feature source.

 

Thank you.

 

Lee

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