Public Property LayerTemplate As DataTemplate

public DataTemplate LayerTemplate {get; set;}

<Grid x:Name="LayoutRoot">
  
  <!-- 
  NOTE: Don't forget to add the following xml namespace definition to the XAML file:
  xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
  -->
  
  <!-- Define a Resources section for use later in the XAML and code-behind -->
  <Grid.Resources>
  
    <!--
    Construct the various DataTemplates that will be used to override the default behavior of the Legend.
    Users click one of the three buttons to apply the various DataTemplates defined here using code-behind.
    -->
    
    <!--
    Define the MapLayerTemplate. The DataTemplate adds the ability to turn on/off the entire Layer (including
    any sub-Layers) via a CheckBox. Additionally, a Slider is available that can control the Opacity (aka. 
    the Visibility) of the Layer (including any sub-Layers). The objects that have Binding occur in this 
    DataTemplate are implied to be the Properties of the ESRI.ArcGIS.Client.Toolkit.Primitives.LayerItemViewModel 
    Class.
    -->
    <DataTemplate x:Key="My_MapLayerTemplate">
      <StackPanel Orientation="Horizontal">
        <CheckBox Content="{Binding Label}" IsChecked="{Binding IsEnabled, Mode=TwoWay}"/>
        <Slider Maximum="1" Value="{Binding Layer.Opacity, Mode=TwoWay}" Width="50" />
      </StackPanel>
    </DataTemplate>
    
    <!--
    Define the LayerTemplate. The DataTemplate adds the ability to turn on/off the a sub-Layers via a 
    CheckBox. The objects that have Binding occur in this DataTemplate are implied to be the Properties of 
    the ESRI.ArcGIS.Client.Toolkit.Primitives.LayerItemViewModel Class.
    NOTE: You could add a Slider similarly to the MapLayerTemplate and you will get Sliders appearing for
    each sub-Layer but the behavior may not be as you would expect. Adjusting a Slider on one sub-Layer
    would also control the Opacity of the other sub-Layers simultaneously.
    -->
    <DataTemplate x:Key="My_LayerTemplate">
      <StackPanel Orientation="Horizontal">
        <CheckBox Content="{Binding Label}" IsChecked="{Binding IsEnabled, Mode=TwoWay}"/>
        <!--<Slider Maximum="1" Value="{Binding Layer.Opacity, Mode=TwoWay}" Width="50" />-->
      </StackPanel>
    </DataTemplate>
    
    <!--
    Define the LegendItemTemplate. The DataTemplate adds the ability to display information about 
    individual LegendItems in the Legend Control. An image for each LegendItem is provided. Additionally,
    a Label displays the text description for the image that corresponds to the Symbology in the Map.
    The objects that have Binding occur in this DataTemplate are implied to be the Properties of 
    the ESRI.ArcGIS.Client.Toolkit.Primitives.LegendItemItemViewModel Class.
    NOTE: Adding controls like the CheckBox or Slider to manage the visibility of individual LegendItems
    for a Layer/sub-Layer in the Map will not work. The REST web services do not provide the ability to 
    control this level of granularity over how the Layers are displayed. Look closely to the Properties of
    the LegendItemViewModel to see what type of TOC interactions could be created.
    -->
    <DataTemplate x:Key="My_LegendItemTemplate">
      <StackPanel Orientation="Horizontal">
        <Image Source="{Binding ImageSource}" />
        <sdk:Label Content="{Binding Label}" FontFamily="Comic Sans MS" FontSize="14" FontWeight="Bold"/>
      </StackPanel>
    </DataTemplate>
    
  </Grid.Resources>
  
  <!-- Add a Map Control. -->
  <esri:Map Background="Black" HorizontalAlignment="Left" Margin="12,188,0,0" Name="Map1" 
            VerticalAlignment="Top" Height="400" Width="400" >
    
    <!-- Add an ArcGISDynamicMapServiceLayer. -->
    <esri:ArcGISDynamicMapServiceLayer  Opacity="0.6" 
        Url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Louisville/LOJIC_LandRecords_Louisville/MapServer"/>
  
  </esri:Map>
  
  <!-- 
  Add a Legend. It is bound to the Map Control. The various DataTemplates will get overridden in the 
  code-behind ones defined in the Resources section of the XAML.
  -->
  <esri:Legend HorizontalAlignment="Left" Margin="418,188,0,0" Name="Legend1" 
               VerticalAlignment="Top" Width="350" Height="400" Background="#FF2180D4"
               Map="{Binding ElementName=Map1}" LayerItemsMode="Tree"
               ShowOnlyVisibleLayers="False"/>
  
  <!-- 
  Add buttons to control the various DataTempaltes of the Legend Control (i.e. MapLayerTemplate, 
  LayerTemplate, and LegendItemTemplate. Each Button has its Click event defined.
  -->
  <Button Content="MapLayerTemplate" Height="23" HorizontalAlignment="Left" Margin="12,159,0,0" 
          Name="Button_MapLayerTempalte" VerticalAlignment="Top" Width="240" 
          Click="Button_MapLayerTempalte_Click"/>
  <Button Content="LayerTemplate" Height="23" HorizontalAlignment="Left" Margin="270,159,0,0" 
          Name="Button_LayerTemplate" VerticalAlignment="Top" Width="240" 
          Click="Button_LayerTemplate_Click"/>
  <Button Content="LegendItemTemplate" Height="23" HorizontalAlignment="Left" Margin="528,159,0,0" 
          Name="Button_LegendItemTemplate" VerticalAlignment="Top" Width="240" 
          Click="Button_LegendItemTemplate_Click"/>
      
  <!-- Provide the instructions on how to use the sample code. -->
  <TextBlock Height="95" HorizontalAlignment="Left" Name="TextBlock1" VerticalAlignment="Top" Width="756" 
         TextWrapping="Wrap" Margin="12,12,0,0" 
         Text="Click each of the three buttons to change the DataTemplates of the Legend Control. 
               Experiment with interacting with the Legend after clicking each button to see the behavior
               changes. Each time a different DataTemplate (i.e. MapLayerTemplate, LayerTemplate, and
               LegendItemTemplate is applied the other DataTemplates will revert back to their original
               state." />
</Grid>

// There is 'by default' some form of DataTemplate for each of the Legend Templates (MapLayerTemplate, 
// LayerTemplate, and LegendItemTemplate). By using a global (i.e. Member) variable to store what 
// those 'default' templates are, we can reset them to their initial setting when using our individual 
// custom DataTemplates.
            
public DataTemplate _MapLayerTemplate;
public DataTemplate _LayerTemplate;
public DataTemplate _LegendItemTemplate;
            
// NOTE: Change the name of the class in this code-example ("Example_LayerTemplate") to the name of your
// class when testing the code. 
public <class Example_LayerTemplate>()
{
  InitializeComponent();
  
  // Populate the Member variables for the various DataTemplates of the Legend Control.
  ESRI.ArcGIS.Client.Toolkit.Legend theLegend = Legend1;
  _MapLayerTemplate = theLegend.MapLayerTemplate;
  _LayerTemplate = theLegend.LayerTemplate;
  _LegendItemTemplate = theLegend.LegendItemTemplate;
}
            
private void Button_MapLayerTempalte_Click(object sender, System.Windows.RoutedEventArgs e)
{
  // Apply the custom DataTemplate for the MapLayerTemplate. Reset the other DataTemplates
  // of the Legend Control back to their initial setting.
  DataTemplate myDataTemplate = LayoutRoot.Resources["My_MapLayerTemplate"];
  Legend1.MapLayerTemplate = myDataTemplate;
  Legend1.LayerTemplate = _LayerTemplate;
  Legend1.LegendItemTemplate = _LegendItemTemplate;
}
            
private void Button_LayerTemplate_Click(object sender, System.Windows.RoutedEventArgs e)
{
  // Apply the custom DataTemplate for the LayerTemplate. Reset the other DataTemplates
  // of the Legend Control back to their initial setting.
  DataTemplate myDataTemplate = LayoutRoot.Resources["My_LayerTemplate"];
  Legend1.MapLayerTemplate = _MapLayerTemplate;
  Legend1.LayerTemplate = myDataTemplate;
  Legend1.LegendItemTemplate = _LegendItemTemplate;
}
            
private void Button_LegendItemTemplate_Click(object sender, System.Windows.RoutedEventArgs e)
{
  // Apply the custom DataTemplate for the LegendItemTemplate. Reset the other DataTemplates
  // of the Legend Control back to their initial setting.
  DataTemplate myDataTemplate = LayoutRoot.Resources["My_LegendItemTemplate"];
  Legend1.MapLayerTemplate = _MapLayerTemplate;
  Legend1.LayerTemplate = _LayerTemplate;
  Legend1.LegendItemTemplate = myDataTemplate;
}

' There is 'by default' some form of DataTemplate for each of the Legend Templates (MapLayerTemplate, 
' LayerTemplate, and LegendItemTemplate). By using a global (i.e. Member) variable to store what 
' those 'default' templates are, we can reset them to their initial setting when using our individual 
' custom DataTemplates.
            
Public _MapLayerTemplate As DataTemplate
Public _LayerTemplate As DataTemplate
Public _LegendItemTemplate As DataTemplate
            
Public Sub New()
  InitializeComponent()
  
  ' Populate the Member variables for the various DataTemplates of the Legend Control.
  Dim theLegend As ESRI.ArcGIS.Client.Toolkit.Legend = Legend1
  _MapLayerTemplate = theLegend.MapLayerTemplate
  _LayerTemplate = theLegend.LayerTemplate
  _LegendItemTemplate = theLegend.LegendItemTemplate
  
End Sub
            
Private Sub Button_MapLayerTempalte_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
  
  ' Apply the custom DataTemplate for the MapLayerTemplate. Reset the other DataTemplates
  ' of the Legend Control back to their initial setting.
  Dim myDataTemplate As DataTemplate = LayoutRoot.Resources("My_MapLayerTemplate")
  Legend1.MapLayerTemplate = myDataTemplate
  Legend1.LayerTemplate = _LayerTemplate
  Legend1.LegendItemTemplate = _LegendItemTemplate
  
End Sub
            
Private Sub Button_LayerTemplate_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
  
  ' Apply the custom DataTemplate for the LayerTemplate. Reset the other DataTemplates
  ' of the Legend Control back to their initial setting.
  Dim myDataTemplate As DataTemplate = LayoutRoot.Resources("My_LayerTemplate")
  Legend1.MapLayerTemplate = _MapLayerTemplate
  Legend1.LayerTemplate = myDataTemplate
  Legend1.LegendItemTemplate = _LegendItemTemplate
  
End Sub
            
Private Sub Button_LegendItemTemplate_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
  
  ' Apply the custom DataTemplate for the LegendItemTemplate. Reset the other DataTemplates
  ' of the Legend Control back to their initial setting.
  Dim myDataTemplate As DataTemplate = LayoutRoot.Resources("My_LegendItemTemplate")
  Legend1.MapLayerTemplate = _MapLayerTemplate
  Legend1.LayerTemplate = _LayerTemplate
  Legend1.LegendItemTemplate = myDataTemplate
  
End Sub