Public Event MouseRightButtonUp As MouseButtonEventHandler

public event MouseButtonEventHandler MouseRightButtonUp

<!-- This is the first XAML file and is the driver of the application. -->
<Grid x:Name="LayoutRoot">
  
  <!-- Add a Map control with an ArcGISTiledMapServiceLayer -->
  <esri:Map Background="White" HorizontalAlignment="Left" Margin="0,150,0,0" Name="Map1" 
            VerticalAlignment="Top" Height="318" Width="423" >
    <esri:ArcGISTiledMapServiceLayer ID="PhysicalTiledLayer" 
                   Url="http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer" />
    <!-- 
    Create a GraphicsLayer to hold the Graphics that will be defined in code-behind. 
    Setting the ID attribute is key to accessing in the code-behind.
    -->
    <esri:GraphicsLayer ID="MyGraphicsLayer" />
  </esri:Map>
  
  <!-- Add a Button to perform the work. Note the Click Event handler is wired-up to use code-behind. -->
  <Button Content="Load Sample Points" Height="23" HorizontalAlignment="Left" Margin="57,121,0,0" Name="Button1" 
          VerticalAlignment="Top" Width="314" Click="Button1_Click"/>
  
  <!-- Provide the instructions on how to use the sample code. -->
  <TextBlock Height="65" Name="TextBlock1" VerticalAlignment="Top" TextWrapping="Wrap" Margin="9,3,88,0" 
           Text="Click the button to add Graphics (with Attributes) to the Map. Then right-click and hold 
             with the Mouse on a Graphic to launch a Popup that displays Attribute information about the 
             Graphic. When you release the right mouse button the Popup will automatically close." />
  
</Grid>

private void Button1_Click(object sender, System.Windows.RoutedEventArgs e)
{
  // This function adds a few MapPoint based Graphics with Attributes to the GraphicsLayer.
  // The GraphicsLayer was defined in XAML.
  
  ESRI.ArcGIS.Client.GraphicsLayer theGraphicsLayer = Map1.Layers["MyGraphicsLayer"];
  ESRI.ArcGIS.Client.GraphicCollection theGraphicsCollection = theGraphicsLayer.Graphics;
  
  theGraphicsLayer.Graphics.Add(MakeMapPointGraphic(-7356594.25, 4752385.95, 102100, 10, "Libra"));
  theGraphicsLayer.Graphics.Add(MakeMapPointGraphic(3654893.89, 7718746.02, 102100, 8, "Leo"));
  theGraphicsLayer.Graphics.Add(MakeMapPointGraphic(6801033.36, 10325547.3, 102100, 7, "Virgo"));
  theGraphicsLayer.Graphics.Add(MakeMapPointGraphic(-5468910.57, 1741081.03, 102100, 8, "Taurus"));
  theGraphicsLayer.Graphics.Add(MakeMapPointGraphic(-4614958.43, -326382.05, 102100, 9, "Pisces"));
}
            
public object MakeMapPointGraphic(double X, double Y, int SR, int anAttributeValue1, string anAttributeValue2)
{
  // This function constructs a new Graphic using: 
  // (1) coordinate pairs (X, Y)
  // (2) a SpatialReference.WKID (SR)
  // (3) some Attribute values (anAttributeValue, anAttributeValue2)
  
  // Create a SpatialReference for the Graphic.
  ESRI.ArcGIS.Client.Geometry.SpatialReference aSpatialReference = new ESRI.ArcGIS.Client.Geometry.SpatialReference(SR);
  
  // Create a MapPoint object and set its SpatialReference and coordinate (X,Y) information. 
  ESRI.ArcGIS.Client.Geometry.MapPoint aMapPoint = new ESRI.ArcGIS.Client.Geometry.MapPoint(X, Y, aSpatialReference);
  
  // Create a new instance of one Graphic and assign its Geometry.
  ESRI.ArcGIS.Client.Graphic aGraphic = new ESRI.ArcGIS.Client.Graphic();
  aGraphic.Geometry = (ESRI.ArcGIS.Client.Geometry.Geometry)aMapPoint;
  
  // Create a new instance of a SimpleMarkerSymbol and set its Color, Style, and Size Properties.
  ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol aSimpleMarkerySymbol = new ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol();
  aSimpleMarkerySymbol.Color = new System.Windows.Media.SolidColorBrush(Colors.Green);
  aSimpleMarkerySymbol.Style = ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol.SimpleMarkerStyle.Square;
  aSimpleMarkerySymbol.Size = 20;
  aGraphic.Symbol = (ESRI.ArcGIS.Client.Symbols.Symbol)aSimpleMarkerySymbol;
  
  // Add some Attributes to the Graphic.
  aGraphic.Attributes.Add("Zen Factor", anAttributeValue1);
  aGraphic.Attributes.Add("Zodiac Sign", anAttributeValue2);
  
  // Dynamically wire-up the MouseRightButtonDown and MouseRightButtonUp Event handlers.
  aGraphic.MouseRightButtonDown += Graphic_MouseRightButtonDown;
  aGraphic.MouseRightButtonUp += Graphic_MouseRightButtonUp;
  
  // Return the created Graphic.
  return aGraphic;
}
 
// Create a UserControl that is based upon a Popup to display Attribute information about a Graphic. 
// In general using global variables (aka. Member variables) is not a good coding practice but since 
// we need to control Properties of the UserControl across multiple functions, its becomes a necessity.
// NOTE: The second XAML file in the example code contains the information for the Popup_UserControl.
private Popup_UserControl _xa = new Popup_UserControl();
            
private void Graphic_MouseRightButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
  // This function overrides the default right mouse button click behavior to display a Microsoft
  // Popup control with some Graphic Attribute values when the user clicks on a Graphic.
  
  // NOTES:
  // e.StylusDevice is a System.Windows.Input.MouseEventArgs.StylusDevice Property
  // e.StylusDevice.DeviceType is a TabletDeviceType Enumeration value of (Mouse, Stylus, Touch)
  // e.OriginalSource is a System.Windows.Shapes.Ellipse
  // e.Handled is a Boolean denoting whether the routed event was handled
  // sender is the ESRI.ArcGIS.Client.Graphic that was clicked on
  
  // This is the way to stop the annoying Silverlight button from appearing! It is also necessary in 
  // order for the Graphic.MouseRightButtonUp Event to fire.
  e.Handled = true;
  
  // Get the Graphic object that was clicked on.
  ESRI.ArcGIS.Client.Graphic theGraphic = (ESRI.ArcGIS.Client.Graphic)sender;
  
  // Use some functions that were defined in the UserControl to display Graphic.Attribute values
  // the TextBoxes of the Popup.
  _xa.SetCustomAttribute1(theGraphic.Attributes.Item("Zen Factor"));
  _xa.SetCustomAttribute2(theGraphic.Attributes.Item("Zodiac Sign").ToString());
  
  // Call the UserControl function to display the Popup.
  _xa.Show();
}
  
private void Graphic_MouseRightButtonUp(object sender, MouseButtonEventArgs e)
{
  // This function causes the UserControl Popup to close.
  
  // NOTES:
  // e.StylusDevice is a System.Windows.Input.MouseEventArgs.StylusDevice Property
  // e.StylusDevice.DeviceType is a TabletDeviceType Enumeration value of (Mouse, Stylus, Touch)
  // e.OriginalSource is a System.Windows.Shapes.Ellipse
  // e.Handled is a Boolean denoting whether the routed event was handled
  // sender is the ESRI.ArcGIS.Client.Graphic that was clicked on
  
  // Call the UserControl function to close the Popup. This will occur as soon as the user lets
  // go of the right mouse button.
  _xa.Close();
  }

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
  
  ' This function adds a few MapPoint based Graphics with Attributes to the GraphicsLayer.
  ' The GraphicsLayer was defined in XAML.
  
  Dim theGraphicsLayer As ESRI.ArcGIS.Client.GraphicsLayer = Map1.Layers("MyGraphicsLayer")
  Dim theGraphicsCollection As ESRI.ArcGIS.Client.GraphicCollection = theGraphicsLayer.Graphics
  
  theGraphicsLayer.Graphics.Add(MakeMapPointGraphic(-7356594.25, 4752385.95, 102100, 10, "Libra"))
  theGraphicsLayer.Graphics.Add(MakeMapPointGraphic(3654893.89, 7718746.02, 102100, 8, "Leo"))
  theGraphicsLayer.Graphics.Add(MakeMapPointGraphic(6801033.36, 10325547.3, 102100, 7, "Virgo"))
  theGraphicsLayer.Graphics.Add(MakeMapPointGraphic(-5468910.57, 1741081.03, 102100, 8, "Taurus"))
  theGraphicsLayer.Graphics.Add(MakeMapPointGraphic(-4614958.43, -326382.05, 102100, 9, "Pisces"))
  
End Sub
            
Public Function MakeMapPointGraphic(ByVal X As Double, ByVal Y As Double, ByVal SR As Integer, ByVal anAttributeValue1 As Integer, ByVal anAttributeValue2 As String)
  
  ' This function constructs a new Graphic using: 
  ' (1) coordinate pairs (X, Y)
  ' (2) a SpatialReference.WKID (SR)
  ' (3) some Attribute values (anAttributeValue, anAttributeValue2)
  
  ' Create a SpatialReference for the Graphic.
  Dim aSpatialReference As New ESRI.ArcGIS.Client.Geometry.SpatialReference(SR)
  
  ' Create a MapPoint object and set its SpatialReference and coordinate (X,Y) information. 
  Dim aMapPoint As New ESRI.ArcGIS.Client.Geometry.MapPoint(X, Y, aSpatialReference)
  
  ' Create a new instance of one Graphic and assign its Geometry.
  Dim aGraphic As New ESRI.ArcGIS.Client.Graphic
  aGraphic.Geometry = CType(aMapPoint, ESRI.ArcGIS.Client.Geometry.Geometry)
  
  ' Create a new instance of a SimpleMarkerSymbol and set its Color, Style, and Size Properties.
  Dim aSimpleMarkerySymbol As New ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol
  aSimpleMarkerySymbol.Color = New System.Windows.Media.SolidColorBrush(Colors.Green)
  aSimpleMarkerySymbol.Style = ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol.SimpleMarkerStyle.Square
  aSimpleMarkerySymbol.Size = 20
  aGraphic.Symbol = CType(aSimpleMarkerySymbol, ESRI.ArcGIS.Client.Symbols.Symbol)
  
  ' Add some Attributes to the Graphic.
  aGraphic.Attributes.Add("Zen Factor", anAttributeValue1)
  aGraphic.Attributes.Add("Zodiac Sign", anAttributeValue2)
  
  ' Dynamically wire-up the MouseRightButtonDown and MouseRightButtonUp Event handlers.
  AddHandler aGraphic.MouseRightButtonDown, AddressOf Graphic_MouseRightButtonDown
  AddHandler aGraphic.MouseRightButtonUp, AddressOf Graphic_MouseRightButtonUp
  
  ' Return the created Graphic.
  Return aGraphic
  
End Function
  
' Create a UserControl that is based upon a Popup to display Attribute information about a Graphic. 
' In general using global variables (aka. Member variables) is not a good coding practice but since 
' we need to control Properties of the UserControl across multiple functions, its becomes a necessity.
' NOTE: The second XAML file in the example code contains the information for the Popup_UserControl.
Private _xa As New Popup_UserControl
            
Private Sub Graphic_MouseRightButtonDown(ByVal sender As System.Object, ByVal e As System.Windows.Input.MouseButtonEventArgs)
  
  ' This function overrides the default right mouse button click behavior to display a Microsoft
  ' Popup control with some Graphic Attribute values when the user clicks on a Graphic.
  
  ' NOTES:
  ' e.StylusDevice is a System.Windows.Input.MouseEventArgs.StylusDevice Property
  ' e.StylusDevice.DeviceType is a TabletDeviceType Enumeration value of (Mouse, Stylus, Touch)
  ' e.OriginalSource is a System.Windows.Shapes.Ellipse
  ' e.Handled is a Boolean denoting whether the routed event was handled
  ' sender is the ESRI.ArcGIS.Client.Graphic that was clicked on
  
  ' This is the way to stop the annoying Silverlight button from appearing! It is also necessary in 
  ' order for the Graphic.MouseRightButtonUp Event to fire.
  e.Handled = True
  
  ' Get the Graphic object that was clicked on.
  Dim theGraphic As ESRI.ArcGIS.Client.Graphic = CType(sender, ESRI.ArcGIS.Client.Graphic)
  
  ' Use some functions that were defined in the UserControl to display Graphic.Attribute values
  ' the TextBoxes of the Popup.
  _xa.SetCustomAttribute1(theGraphic.Attributes.Item("Zen Factor"))
  _xa.SetCustomAttribute2(theGraphic.Attributes.Item("Zodiac Sign").ToString)
  
  ' Call the UserControl function to display the Popup.
  _xa.Show()
  
End Sub
  
Private Sub Graphic_MouseRightButtonUp(ByVal sender As Object, ByVal e As MouseButtonEventArgs)
  
  ' This function causes the UserControl Popup to close.
  
  ' NOTES:
  ' e.StylusDevice is a System.Windows.Input.MouseEventArgs.StylusDevice Property
  ' e.StylusDevice.DeviceType is a TabletDeviceType Enumeration value of (Mouse, Stylus, Touch)
  ' e.OriginalSource is a System.Windows.Shapes.Ellipse
  ' e.Handled is a Boolean denoting whether the routed event was handled
  ' sender is the ESRI.ArcGIS.Client.Graphic that was clicked on
  
  ' Call the UserControl function to close the Popup. This will occur as soon as the user lets
  ' go of the right mouse button.
  _xa.Close()
  
End Sub

<!-- Define a new Microsoft Popup Control. -->
<Popup x:Name="popMessage"  VerticalOffset="300" HorizontalOffset="400">
  <Grid x:Name="LayoutRoot" Background="White">
    <Border BorderBrush="Green" BorderThickness="10" Name="Border1">
      <StackPanel>
        
        <!-- This StackPanel will display some Graphic Attribute information. -->
        <StackPanel Orientation="Horizontal" Name="StackPanel_ZenFactor">
          <TextBlock Text="Zen Factor: " FontWeight="Bold" FontSize="10" VerticalAlignment="Center"/>
          <TextBlock x:Name="TextBlock_ZenFactor" HorizontalAlignment="Left" VerticalAlignment="Center" />
        </StackPanel>
        
        <!-- This StackPanel will display some Graphic Attribute information. -->
        <StackPanel Orientation="Horizontal" Name="StackPanel_ZodiacSign">
          <TextBlock Text="Zodiac Sign: " FontWeight="Bold" FontSize="10" VerticalAlignment="Center"/>
          <TextBlock x:Name="TextBlock_ZodiacSign" HorizontalAlignment="Left" VerticalAlignment="Center" />
        </StackPanel>
        
      </StackPanel>
    </Border>
  </Grid>
</Popup>

// This Class provides the logic for the UserControl that launches a Popup Control which will
// display Graphic Attribute information while the user clicks and holds down the right mouse
// button. 
public partial class Popup_UserControl : UserControl
{
  public Popup_UserControl()
  {
    InitializeComponent();
  }
            
  public void Show()
  {
    // Launch the Popup
    popMessage.IsOpen = true;
  }
  
  public void SetCustomAttribute1(int anInteger)
  {
    // Set the TextBlock.Text from the Graphic Attribute value. 
    TextBlock_ZenFactor.Text = anInteger.ToString();
  }
  
  public void SetCustomAttribute2(string aString)
  {
    // Set the TextBlock.Text from the Graphic Attribute value. 
    TextBlock_ZodiacSign.Text = aString;
  }
  
  public void Close()
  {
    // Close the Popup
    popMessage.IsOpen = false;
  }
}

' This Class provides the logic for the UserControl that launches a Popup Control which will
' display Graphic Attribute information while the user clicks and holds down the right mouse
' button. 
Partial Public Class Popup_UserControl
  Inherits UserControl
  
  Public Sub New()
    InitializeComponent()
  End Sub
  
  Public Sub Show()
    ' Launch the Popup
    popMessage.IsOpen = True
  End Sub
  
  Public Sub SetCustomAttribute1(ByVal anInteger As Integer)
    ' Set the TextBlock.Text from the Graphic Attribute value. 
    TextBlock_ZenFactor.Text = anInteger.ToString
  End Sub
  
  Public Sub SetCustomAttribute2(ByVal aString As String)
    ' Set the TextBlock.Text from the Graphic Attribute value. 
    TextBlock_ZodiacSign.Text = aString
  End Sub
            
  Public Sub Close()
    ' Close the Popup
    popMessage.IsOpen = False
  End Sub
            
End Class