Public Property CompressionQuality As Nullable(Of Integer)

public Nullable<int> CompressionQuality {get; set;}

<esri:Map Name="Map1" Height="400" Width="400" ">
  <!-- CompressionQuality Property (Read/Write). -->
  <esri:ArcGISImageServiceLayer 
        Url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Portland/CascadeLandsat/ImageServer" 
        CompressionQuality="50"/>
</esri:Map>
<TextBlock Name="TextBlock_CompressionQuality" Height="23" Width="248" 
           Text="{Binding ElementName=Map1, Path=Layers[0].CompressionQuality}"/>

private void MainPage_Loaded(object sender, System.Windows.RoutedEventArgs e)
{
                
  // The Map1 object (a Map object) was defined previously in XAML.
                
  // Create an ArcGISImageServiceLayer.
  ESRI.ArcGIS.Client.ArcGISImageServiceLayer myArcGISImageServiceLayer = new ESRI.ArcGIS.Client.ArcGISImageServiceLayer();
  myArcGISImageServiceLayer.Url = "http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Portland/CascadeLandsat/ImageServer";
                
  // In this example the CompressionQuality will be set to 50.
  Nullable<int> myCompressionQuality = 50;
  myArcGISImageServiceLayer.CompressionQuality = myCompressionQuality;
                
  // Create an Event Handler.
  myArcGISImageServiceLayer.Initialized += new System.EventHandler<EventArgs>(ArcGISImageServiceLayer_Intialized);
                
  // Add the ArcGISImageServiceLayer to the LayerCollection of the Map.
  Map1.Layers.Add(myArcGISImageServiceLayer);
                
}
                
private void ArcGISImageServiceLayer_Intialized(object sender, EventArgs e)
{
                
  // The Map1 object (a Map object) and TextBlock_CompressionQuality (a TextBlock object) were defined previously in XAML.
                
  // Access a specific ArcGISImageServiceLayer.
  ESRI.ArcGIS.Client.ArcGISImageServiceLayer myArcGISImageServiceLayer = (ESRI.ArcGIS.Client.ArcGISImageServiceLayer)Map1.Layers[0];
                
  // CompressionQuality Property (Read/Write).
                
  // The return Type can be null/Nothing or an Integer.
                
  // Use the getter (Read) to obtain the CompressionQuality.
  Nullable<int> myCompressionQuality = myArcGISImageServiceLayer.CompressionQuality;
                
  if (myCompressionQuality != null)
  {
    // Display the custom set CompressionQuality value.
    TextBlock_CompressionQuality.Text = myArcGISImageServiceLayer.CompressionQuality.ToString();
  }
  else
  {
    // The default CompressionQuality is 75 in the ArcGIS Server service.
    // If the CompressionQuality property is not set in the code-behind or XAML the getter (Read) will show the 
    // CompressionQuality coming back as Nothing/null.
    TextBlock_CompressionQuality.Text = "[NO CompressionQuality SET]";
  }
                
}

Private Sub MainPage_Loaded(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles Me.Loaded
                
  ' The Map1 object (a Map object) was defined previously in XAML.
                
  ' Create an ArcGISImageServiceLayer.
  Dim myArcGISImageServiceLayer As New ESRI.ArcGIS.Client.ArcGISImageServiceLayer
  myArcGISImageServiceLayer.Url = "http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Portland/CascadeLandsat/ImageServer"
                
  ' In this example the CompressionQuality will be set to 50.
  Dim myCompressionQuality As Nullable(Of Integer) = 50
  myArcGISImageServiceLayer.CompressionQuality = myCompressionQuality
                
  ' Create an Event Handler.
  AddHandler myArcGISImageServiceLayer.Initialized, AddressOf ArcGISImageServiceLayer_Intialized
                
  ' Add the ArcGISImageServiceLayer to the LayerCollection of the Map.
  Map1.Layers.Add(myArcGISImageServiceLayer)
                
End Sub
                
Private Sub ArcGISImageServiceLayer_Intialized(ByVal sender As Object, ByVal e As EventArgs)
  
  ' The Map1 object (a Map object) and TextBlock_CompressionQuality (a TextBlock object) were defined previously in XAML.
  
  ' Access a specific ArcGISImageServiceLayer.
  Dim myArcGISImageServiceLayer As ESRI.ArcGIS.Client.ArcGISImageServiceLayer = Map1.Layers.Item(0)
  
  ' CompressionQuality Property (Read/Write).
  
  ' The return Type can be null/Nothing or an Integer.
  
  ' Use the getter (Read) to obtain the CompressionQuality.
  Dim myCompressionQuality As Nullable(Of Integer) = myArcGISImageServiceLayer.CompressionQuality
  
  If myCompressionQuality IsNot Nothing Then
  
    ' Display the custom set CompressionQuality value.
    TextBlock_CompressionQuality.Text = myArcGISImageServiceLayer.CompressionQuality.ToString
  
  Else
  
    ' The default CompressionQuality is 75 in the ArcGIS Server service.
    ' If the CompressionQuality property is not set in the code-behind or XAML the getter (Read) will show the 
    ' CompressionQuality coming back as Nothing/null.
   TextBlock_CompressionQuality.Text = "[NO CompressionQuality SET]"
  
  End If
                
End Sub