Public Class ArcGISDynamicMapServiceLayer 
   Inherits DynamicMapServiceLayer
   Implements IAttribution, ILegendSupport, ISublayerVisibilitySupport 

public class ArcGISDynamicMapServiceLayer : DynamicMapServiceLayer, IAttribution, ILegendSupport, ISublayerVisibilitySupport  

<StackPanel Name="StackPanel1" Height="400" Width="400" Margin="0,0,0,0" HorizontalAlignment="Left" VerticalAlignment="Top" >
    <esri:Map Background="White" Name="Map1" Height="200" Width="400">
         <!-- Define an ArcGISDynamicMapServiceLayer. -->
         <esri:ArcGISDynamicMapServiceLayer 
              Url="http://serverapps.esri.com/ArcGIS/rest/services/California/MapServer" />
    </esri:Map>
</StackPanel>

private void MainPage_Loaded(object sender, System.Windows.RoutedEventArgs e)
{
     
  // Create an ArcGISDynamicServiceLayer. The Map1 object (a Map class) was previously defined in XAML.
  ArcGISDynamicMapServiceLayer myArcGISDynamicMapServiceLayer = new ArcGISDynamicMapServiceLayer();
 
     // Add an ArcGISDynamicMapServiceLayer.
  myArcGISDynamicMapServiceLayer.Url = "http://serverapps.esri.com/ArcGIS/rest/services/California/MapServer";
  
  myArcGISDynamicMapServiceLayer.Initialized += new EventHandler<EventArgs>(ArcGISDynamicMapServiceLayer_Initialized);
  Map1.Layers.Add(myArcGISDynamicMapServiceLayer);
  
}
            	
private void ArcGISDynamicMapServiceLayer_Initialized(object sender, System.EventArgs e)
{
  // Use the various ArcGISDynamicMapServiceLayer properties in this method. 
}

Private Sub MainPage_Loaded(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles Me.Loaded
            	
  ' Create an ArcGISDynamicServiceLayer. The Map1 object (a Map class) was previously defined in XAML.
  Dim myArcGISDynamicMapServiceLayer As New ESRI.ArcGIS.Client.ArcGISDynamicMapServiceLayer
 
     ' Add an ArcGISDynamicMapServiceLayer.
  myArcGISDynamicMapServiceLayer.Url = "http://serverapps.esri.com/ArcGIS/rest/services/California/MapServer"
  
  AddHandler myArcGISDynamicMapServiceLayer.Initialized, AddressOf ArcGISDynamicMapServiceLayer_Initialized
  Map1.Layers.Add(myArcGISDynamicMapServiceLayer)
  
End Sub
            	
Private Sub ArcGISDynamicMapServiceLayer_Initialized(ByVal sender As System.Object, ByVal e As System.EventArgs)
  ' Use the various ArcGISDynamicMapServiceLayer properties in this method. 
End Sub