Public Property BandIds As Integer()

public int[] BandIds {get; set;}

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";
                
  // Control which individual bands are visible by setting the BandId's property.
  // In this example the ArcGISImageService has 4 bands available but only the 1st and 2nd bands will
  // be specified (Write) as visible. 
  int[] myBandIds = { 0, 1 };
  myArcGISImageServiceLayer.BandIds = myBandIds;
                
  // Create an Event Handler.
  myArcGISImageServiceLayer.Initialized += new System.EventHandler<EventArgs%gt;(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_BandIds (a TextBlock object) were defined previously in XAML.
                
  // Access a specific ArcGISImageServiceLayer.
  ESRI.ArcGIS.Client.ArcGISImageServiceLayer myArcGISImageServiceLayer = (ESRI.ArcGIS.Client.ArcGISImageServiceLayer)Map1.Layers[0];
                
  // BandIds Property (Read/Write).
                
  // Use the getter (Read) to obtain an Integer Array of band ids that are visible.
  int[] myBandIds = myArcGISImageServiceLayer.BandIds;
                
  if (myBandIds != null)
  {
    // Specific BandIds have been set.
    string myBandIdsText = "Num BandIds: " + myBandIds.Length.ToString();
    string myBandIdsText2 = "";
    int i = 0;
    for (i = 0; i < myBandIds.Length; i++)
    {
      myBandIdsText2 = myBandIdsText2 + " " + myBandIds[i].ToString();
    }
                
    // Display the number of BandIds set and which one.
    TextBlock_BandIds.Text = myBandIdsText + ". Bands: " + myBandIdsText2;
  }
  else
  {
    // Typically all of the bands are visible (turned on) by default in the ArcGIS Server service.
    // If the BandIds property is not set in the code-behind the getter (Read) will show the BandIds 
    // coming back as Nothing/null.
    TextBlock_BandIds.Text = "[NO BandIds 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"
                
  ' Control which individual bands are visible by setting the BandId's property.
  ' In this example the ArcGISImageService has 4 bands available but only the 1st and 2nd bands will
  ' be specified (Write) as visible. 
  Dim myBandIds() As Integer = {0, 1}
  myArcGISImageServiceLayer.BandIds = myBandIds
                
  ' 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_BandIds (a TextBlock object) were defined previously in XAML.
                
  ' Access a specific ArcGISImageServiceLayer.
  Dim myArcGISImageServiceLayer As ESRI.ArcGIS.Client.ArcGISImageServiceLayer = Map1.Layers.Item(0)
 
  ' BandIds Property (Read/Write).
  
  ' Use the getter (Read) to obtain an Integer Array of band ids that are visible.
  Dim myBandIds() As Integer = myArcGISImageServiceLayer.BandIds
                
  If myBandIds IsNot Nothing Then
                
    ' Specific BandIds have been set.
    Dim myBandIdsText As String = "Num BandIds: " + myBandIds.Length.ToString
    Dim myBandIdsText2 As String = ""
    Dim i As Integer
    For i = 0 To myBandIds.Length - 1
      myBandIdsText2 = myBandIdsText2 + " " + myBandIds(i).ToString
    Next
                
    ' Display the number of BandIds set and which one.
    TextBlock_BandIds.Text = myBandIdsText + ". Bands: " + myBandIdsText2
                
  Else
                
    ' Typically all of the bands are visible (turned on) by default in the ArcGIS Server service.
    ' If the BandIds property is not set in the code-behind the getter (Read) will show the BandIds 
    ' coming back as Nothing/null.
                
    TextBlock_BandIds.Text = "[NO BandIds SET]"
                
  End If
  
End Sub