OpenFeatureLayerParameters parameters = new OpenFeatureLayerParameters();
            
// Item is a ESRI.ArcGIS.Client.BAServer.FolderItem.
parameters.Item = new FolderItem(workspaceName, projectName, FolderType.esriFolderStoreLayers, itemName);
            
// OutputSpatialReference is ESRI.ArcGIS.Client.Geometry.SpatialReference.
// If this parameter is omitted, the feature set will be returned in the default spatial reference
// of the active dataset.
parameters.OutputSpatialReference = outSpatialReference;
            
// The geometry is returned by default.
//parameters.ReturnGeometry = true;
            
openFeatureLayerTask.ExecuteAsync(parameters, new AsyncResponder(resultHandler, faultHandler));