Public NotInheritable Class LayerTimeOptionCollection 
   Inherits System.Collections.Generic.List(Of TimeOption)

public sealed class LayerTimeOptionCollection : System.Collections.Generic.List<TimeOption> 

<Grid x:Name="LayoutRoot" >
  
  <!-- 
  Add a Map Control zoomed to Stanton County Kansas. An initial Map.TimeExtent is specified from Jan. 1, 
  1945 to Jan. 1, 1960 that restricts the 'window-of-time' for which features are displayed in the
  ArcGISDynamicMapServiceLayer.
  -->
  <esri:Map x:Name="Map1" WrapAround="True" HorizontalAlignment="Left" VerticalAlignment="Top"
            Margin="12,193,0,0" Height="400" Width="400" Extent="-11364678,4479899,-11291472,4553106" 
            TimeExtent="1945/01/01 00:00:00 UTC, 1960/01/01 00:00:00 UTC">
  
    <!-- Add a backdrop ArcGISTiledMapServiceLayer. -->
    <esri:ArcGISTiledMapServiceLayer ID="BaseLayer"
                  Url="http://services.arcgisonline.com/ArcGIS/rest/services/Canvas/World_Light_Gray_Base/MapServer" />
    
    <!-- Add the ArcGISDynamicMapServiceLayer that is time-enabled. It has two sub-layers. -->
    <esri:ArcGISDynamicMapServiceLayer ID="StantonCountyKSLeases" DisableClientCaching="True"
          Url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Petroleum/StantonCountyKSLeases/MapServer">
    </esri:ArcGISDynamicMapServiceLayer>
    
  </esri:Map>
  
  <!-- Add a Legend Control to demonstrate which features belong to which layers. -->
  <esri:Legend x:Name="MyLegend" Margin="418,193,0,0" Map="{Binding ElementName=Map1}" ShowOnlyVisibleLayers="True"
               Height="400" Width="300" VerticalAlignment="Top" HorizontalAlignment="Left"/>
      
  <!-- 
  Add two CheckBoxes, one for each sub-layer in the ArcGISDynamicMapServiceLayer, that give the user
  the ability to control the TimeOption.UseTime Property for each sub-layer. Then click the button
  to call code-behind functions to re-render the Map Control.
  -->
  <CheckBox Content="Sub-layer 0: UseTime" HorizontalAlignment="Left" Margin="12,147,0,437" 
            Name="CheckBox_SubLayer0" IsChecked="True"/>
  <CheckBox Content="Sub-layer 1: UseTime" Height="16" HorizontalAlignment="Left" Margin="12,172,0,0" 
            Name="CheckBox_SubLayer1" VerticalAlignment="Top" IsChecked="True" />
  <Button Content="Re-draw the time-enabled ArcGISDynamicMapServiceLayer" Height="41" HorizontalAlignment="Left" 
          Margin="179,147,0,0" Name="Button1" VerticalAlignment="Top" Width="539" Click="Button1_Click"/>
  
  <!-- Provide the instructions on how to use the sample code. -->
  <TextBlock Height="141" HorizontalAlignment="Left" Name="TextBlock1" VerticalAlignment="Top" Width="788" 
             TextWrapping="Wrap" Text="When the application starts a time-enabled ArcGISDynamicMapServiceLayer with
             two sub-layers is added to the Map Control. Initially the two sub-layers are restricted to only show 
             features that fall within the Map.TimeExtent of Jan. 1, 1945 to Jan. 1, 1960. Click the various 
             'Sub-layer X: UseTime' CheckBoxes and click the Button to re-render the ArcGISDynamicMapServiceLayer
             to see the effect of expanding the Map.TimeExtent for a particular sub-layer to that of the TimeExent
             of the REST service, which is Jan. 1, 1945 to Jan. 1, 2009." />
    
</Grid>

private void Button1_Click(object sender, System.Windows.RoutedEventArgs e)
{
  // Get the ArcGISDynamicMapServiceLayer.
  ESRI.ArcGIS.Client.ArcGISDynamicMapServiceLayer myArcGISDynamicMapServiceLayer = (ESRI.ArcGIS.Client.ArcGISDynamicMapServiceLayer)(Map1.Layers["StantonCountyKSLeases"]);
  
  // Create a new LayerTimeOptionCollection.
  ESRI.ArcGIS.Client.LayerTimeOptionCollection myLayerTimeOptionCollection = new ESRI.ArcGIS.Client.LayerTimeOptionCollection();
  
  // For sub-layer 0, create a new TimeOption and allow the user to specify what TimeOption.UseTime
  // value they want to set. Then add the TimeOption to the new LayerTimeOptionCollection.
  ESRI.ArcGIS.Client.Tasks.TimeOption myTimeOption_SubLayer0 = new ESRI.ArcGIS.Client.Tasks.TimeOption();
  myTimeOption_SubLayer0.LayerId = "0";
  if (CheckBox_SubLayer0.IsChecked == true)
  {
    myTimeOption_SubLayer0.UseTime = true;
  }
  else if (CheckBox_SubLayer0.IsChecked == false)
  {
    myTimeOption_SubLayer0.UseTime = false;
  }
  myLayerTimeOptionCollection.Add(myTimeOption_SubLayer0);
  
  // For sub-layer 1, create a new TimeOption and allow the user to specify what TimeOption.UseTime
  // value they want to set. Then add the TimeOption to the new LayerTimeOptionCollection.
  ESRI.ArcGIS.Client.Tasks.TimeOption myTimeOption_SubLayer1 = new ESRI.ArcGIS.Client.Tasks.TimeOption();
  myTimeOption_SubLayer1.LayerId = "1";
  if (CheckBox_SubLayer1.IsChecked == true)
  {
    myTimeOption_SubLayer1.UseTime = true;
  }
  else if (CheckBox_SubLayer1.IsChecked == false)
  {
    myTimeOption_SubLayer1.UseTime = false;
  }
  myLayerTimeOptionCollection.Add(myTimeOption_SubLayer1);
  
  // Set the ArcGISDynamicMapServiceLayer.LayerTimeOptions to the new customized LayerTimeOptionCollection.
  myArcGISDynamicMapServiceLayer.LayerTimeOptions = myLayerTimeOptionCollection;
  
  // Refresh the ArcGISDynamicMapServiceLayer so that it re-renders in the Map Control.
  myArcGISDynamicMapServiceLayer.Refresh();
}

Private Sub Button1_Click(sender As System.Object, e As System.Windows.RoutedEventArgs)
    
  ' Get the ArcGISDynamicMapServiceLayer.
  Dim myArcGISDynamicMapServiceLayer As ESRI.ArcGIS.Client.ArcGISDynamicMapServiceLayer = CType(Map1.Layers("StantonCountyKSLeases"), ESRI.ArcGIS.Client.ArcGISDynamicMapServiceLayer)
  
  ' Create a new LayerTimeOptionCollection.
  Dim myLayerTimeOptionCollection As New ESRI.ArcGIS.Client.LayerTimeOptionCollection
  
  ' For sub-layer 0, create a new TimeOption and allow the user to specify what TimeOption.UseTime
  ' value they want to set. Then add the TimeOption to the new LayerTimeOptionCollection.
  Dim myTimeOption_SubLayer0 As New ESRI.ArcGIS.Client.Tasks.TimeOption
  myTimeOption_SubLayer0.LayerId = "0"
  If CheckBox_SubLayer0.IsChecked = True Then
    myTimeOption_SubLayer0.UseTime = True
  ElseIf CheckBox_SubLayer0.IsChecked = False Then
    myTimeOption_SubLayer0.UseTime = False
  End If
  myLayerTimeOptionCollection.Add(myTimeOption_SubLayer0)
  
  ' For sub-layer 1, create a new TimeOption and allow the user to specify what TimeOption.UseTime
  ' value they want to set. Then add the TimeOption to the new LayerTimeOptionCollection.
  Dim myTimeOption_SubLayer1 As New ESRI.ArcGIS.Client.Tasks.TimeOption
  myTimeOption_SubLayer1.LayerId = "1"
  If CheckBox_SubLayer1.IsChecked = True Then
    myTimeOption_SubLayer1.UseTime = True
  ElseIf CheckBox_SubLayer1.IsChecked = False Then
    myTimeOption_SubLayer1.UseTime = False
  End If
  myLayerTimeOptionCollection.Add(myTimeOption_SubLayer1)
  
  ' Set the ArcGISDynamicMapServiceLayer.LayerTimeOptions to the new customized LayerTimeOptionCollection.
  myArcGISDynamicMapServiceLayer.LayerTimeOptions = myLayerTimeOptionCollection
  
  ' Refresh the ArcGISDynamicMapServiceLayer so that it re-renders in the Map Control.
  myArcGISDynamicMapServiceLayer.Refresh()
  
End Sub