Public Class ArcGISLocalFeatureLayer 
   Inherits ESRI.ArcGIS.Client.FeatureLayer
   Implements ESRI.ArcGIS.Client.IAttribution, ESRI.ArcGIS.Client.ILegendSupport 

public class ArcGISLocalFeatureLayer : ESRI.ArcGIS.Client.FeatureLayer, ESRI.ArcGIS.Client.IAttribution, ESRI.ArcGIS.Client.ILegendSupport  

<esri:Map x:Name="_map">              
  <esri:ArcGISLocalFeatureLayer ID="arcGISLocalFeatureLayer" LayerName="Cities" 
           Path="C:\Program Files (x86)\ArcGIS SDKs\WPF1.0\SDK\Samples\Data\MPKs\USCitiesStates.mpk"/>            
</esri:Map>

// Create a new local feature service instance and supply an ArcGIS Map Package path as string.
LocalFeatureService.GetServiceAsync(@"C:\Program Files (x86)\ArcGIS SDKs\WPF1.0\SDK\Samples\Data\MPKs\USCitiesStates.mpk",
    localFeatureService =>
    {
        // Create a new local feature layer instance and provide the local feature service and a layer name.
        ArcGISLocalFeatureLayer arcGISLocalFeatureLayer
            = new ArcGISLocalFeatureLayer(localFeatureService, "Cities");
            
        // Set the ID.
        arcGISLocalFeatureLayer.ID = "Cities";
        
        // Add the local feature layer to the map. The map will handle the initialization of the layer.
        _map.Layers.Add(arcGISLocalFeatureLayer);
    });

' Create a new local feature service instance and supply an ArcGIS Map Package path as string.
LocalFeatureService.GetServiceAsync("C:\Program Files (x86)\ArcGIS SDKs\WPF1.0\SDK\Samples\Data\MPKs\USCitiesStates.mpk",
    Function(localServiceDelegate)
        ' Create a new local feature layer instance and provide the local feature service and a layer name.
        Dim arcGISLocalFeatureLayer As New ArcGISLocalFeatureLayer(localServiceDelegate, "Cities")
        
        ' Set the ID.
        arcGISLocalFeatureLayer.ID = "Cities"
        
        ' Add the local feature layer to the map. The map will handle the initialization of the layer which 
        ' in turn will start the local feature service if required.
        _map.Layers.Add(arcGISLocalFeatureLayer)
        
    End Function)