Public Property MapTip As FrameworkElement

public FrameworkElement MapTip {get; set;}

<Grid x:Name="LayoutRoot">
  
  <!-- Add a Map control with an ArcGISTiledMapServiceLayer. -->
  <esri:Map Background="White" HorizontalAlignment="Left" Margin="12,102,0,0" Name="Map1" 
            VerticalAlignment="Top" Height="366" Width="616" >
      
    <esri:ArcGISTiledMapServiceLayer ID="PhysicalTiledLayer" 
                   Url="http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer" />
    
    <!-- Define a GraphicsLayer which will be used to set up MapTips. -->
    <esri:GraphicsLayer ID="MyGraphicsLayer">
      <esri:GraphicsLayer.MapTip>
                  
        <!-- Define the User Interface (UI) look and feel of the FrameworkElement for the GraphicsLayer.MapTip -->
        <Border BorderBrush="DarkGray" CornerRadius="13" BorderThickness="1" Margin="0,0,15,15">
          <Border.Effect>
            <DropShadowEffect ShadowDepth="10" BlurRadius="14" Direction="300" />
          </Border.Effect>
          <Border CornerRadius="10" Background="#DDFFEEEE" BorderThickness="5" BorderBrush="#77FF0000">
            <StackPanel Orientation="Vertical" HorizontalAlignment="Center" Margin="10">
              <StackPanel Orientation="Horizontal">
                
                <!-- 
                Bind the DataContext of the various Graphic.Attribute values to the various TextBlocks.
                
                Information on DataContext documentation can be found at: 
                http://msdn.microsoft.com/en-us/library/system.windows.frameworkelement.datacontext(v=vs.95).aspx 
                
                Starting with Silverlight version 4, developers can perform DataContext binding directly to 
                Dictionary Keys by specifying the Key name in brackets. Therefore, when binding the DataContext 
                of a GraphicsLayer.MapTip to a specific attribute name in the Graphic.Attributes (which is a 
                Dictionary), encase the attribute name in square brackets (i.e. []). Example: 
                <TextBlock Text="{Binding [Age]}" /> or the slightly more verbose version 
                <TextBlock Text="{Binding Path=[Age]}" />). 
                -->
                <TextBlock Text="Name: " FontWeight="Bold" Foreground="#FF0F274E" FontSize="10" VerticalAlignment="Center"/>
                <TextBlock Text="{Binding Path=[Name]}" HorizontalAlignment="Left" VerticalAlignment="Center" />
              </StackPanel>
              <StackPanel Orientation="Horizontal">
                <TextBlock Text="Age: " FontWeight="Bold" Foreground="#FF0F274E" FontSize="10" VerticalAlignment="Center" />
                <TextBlock Text="{Binding [Age]}" HorizontalAlignment="Left" VerticalAlignment="Center" />
              </StackPanel>
            </StackPanel>
          </Border>
        </Border>
      </esri:GraphicsLayer.MapTip>
    </esri:GraphicsLayer>
    
  </esri:Map>
  
  <!-- Add a Button to perform the work. Note the Click Event handler is wired-up to use code-behind. -->
  <Button Content="Draw graphics from data in a file on disk" Height="35" HorizontalAlignment="Left" 
          Margin="160,61,0,0" Name="Button3"  VerticalAlignment="Top" Width="302" Click="Button1_Click"/>
    
  <!-- Provide the instructions on how to use the sample code. -->
  <TextBlock Height="40" HorizontalAlignment="Left" Name="TextBlock1" VerticalAlignment="Top" Width="616" 
             TextWrapping="Wrap" Margin="12,12,0,0" 
             Text="Click the button to load data in a textfile (.txt) on the local hard drive. The User Interface (UI) 
             look and feel of the GraphicsLayer.MapTips are established in the XAML. Hover over a Graphic to see the 
             MapTip." />
    
</Grid>

// SPECIAL INSTRUCTIONS:
// This example code reads information from a textfile to display Graphics on the Map. Use a text editor
// program (like Notepad) to add the following lines into the TestData.txt file and save it in the 
// \MyDocuments folder. NOTE: REMOVE THE STARTING COMMENT (' or //) BEFORE EACH LINE!
//
//-7356594.25,4752385.95,102100,Billy,11
//-5468910.57,1875915.58,102100,Sue,31
//-1558708.66,-326382.05,102100,Sam,78
//-4614958.43,-4191639.11,102100,Kate,44
  
// A simple Class that will hold all of the information to draw Graphics (with MapTips) on the Map Control.
public class TestData
{
  public int X; // X coordinate value
  public int Y; // Y coordinate value
  public int WKID; // The SpatialRefernce.WKID value
  public string Name; // An Attribute for a persons name
  public int Age; // An Attribute for a persons age
}
            
private void Button1_Click(object sender, System.Windows.RoutedEventArgs e)
{
  // Create a List<TestData> objects that will contain all of the information needed to draw Graphics
  // with MapTips on the Map Control.
  List<TestData> theTestData = new List<TestData>();
  
  // Load the List<TestData> objects from a textfile (.txt) on the local hard drive.
  theTestData = LoadTestData();
  
  // Draw the Graphics (with configured MapTips) on the Map Control. 
  DrawTestData2(theTestData);
}
            
public List<TestData> LoadTestData()
{
  
  // This function will load data that is in a textfile (.txt) on the local hard drive into a
  // List<TestData> objects.
  
  // Create a new List<TestData>.
  List<TestData> theTestData = new List<TestData>();
  
  // Create an instance of the open file dialog box.
  OpenFileDialog theOpenFileDialog = new OpenFileDialog();
  
  // Set filter options and filter index.
  theOpenFileDialog.Filter = "Text Files (*.txt)|*.txt";
  theOpenFileDialog.FilterIndex = 1;
  
  // Only let the user select one textfile at a time
  theOpenFileDialog.Multiselect = false;
  
  // Call the ShowDialog method to show the dialogbox.
  bool UserClickedOK = theOpenFileDialog.ShowDialog();
  
  // Process input if the user clicked OK.
  if (UserClickedOK == true)
  {
    
    //Open the selected file to read.
    System.IO.Stream fileStream = theOpenFileDialog.File.OpenRead;
    
    // Use a StreamReader to read the contents of the textfile
    using (System.IO.StreamReader reader = new System.IO.StreamReader(fileStream))
    {
      // Hold the contents of reading one line from the textfile.
      string line = null;
      
      // Loop through the textfile.
      do
      {
        // Read one line from the StreamReader
        line = reader.ReadLine();
        
        // Only process valid content
        if (line != null)
        {
          // Break (tokenize) the contents of a line of information into a String Array. 
          string[] parts = line.Split(',');
          
          // Create a new instance of one TestData object and populate the various fields.
          TestData oneRecord = new TestData();
          oneRecord.X = parts[0];
          oneRecord.Y = parts[1];
          oneRecord.WKID = parts[2];
          oneRecord.Name = parts[3];
          oneRecord.Age = parts[4];
          
          // Add the TestData object to the List<TestData>.
          theTestData.Add(oneRecord);
        }
        
      // Break out of the StreamReader if we don't have valid data.
      } while ( line != null);
      
    } // Close the Using logic flow.
    
    // Close the StreamReader.
    fileStream.Close();
  }
  
  // Return the List<TestData>.
  return theTestData;
  
}
  
public void DrawTestData2(List<TestData> theTestData)
{
  // Loop through all of the List<TestData> objects, construct Graphics with Attributes, and add the 
  // Graphics to the GraphicsLayer to render on the Map Control.
  
  // Obtain the GraphicsLayer that was defined in XAML. Note: the look and feel of the MapTips are defined in
  // the XAML for the GraphicsLayer.MapTips. 
  ESRI.ArcGIS.Client.GraphicsLayer theGraphicsLayer = null;
  theGraphicsLayer = (ESRI.ArcGIS.Client.GraphicsLayer)(Map1.Layers["MyGraphicsLayer"]);
  
  // Loop through the List<TestData> objects.
  foreach (TestData oneRecord in theTestData)
  {
    // Construct a new MapPoint geometric object from the TestData .X and .Y fields.
    ESRI.ArcGIS.Client.Geometry.MapPoint aMapPoint = new ESRI.ArcGIS.Client.Geometry.MapPoint();
    aMapPoint.X = oneRecord.X;
    aMapPoint.Y = oneRecord.Y;
    
    // Construct a new SpatialReference object from a TestData.WKID field and use it for the MapPoint.
    ESRI.ArcGIS.Client.Geometry.SpatialReference aSpatialReference = new ESRI.ArcGIS.Client.Geometry.SpatialReference(oneRecord.WKID);
    aMapPoint.SpatialReference = aSpatialReference;
    
    // Create SimpleMarkerSymbol for the Graphic's Symbology.
    ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol aSimpleMarkerSymbol = new ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol();
    aSimpleMarkerSymbol.Color = new System.Windows.Media.SolidColorBrush(Colors.Yellow);
    aSimpleMarkerSymbol.Style = ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol.SimpleMarkerStyle.Diamond;
    aSimpleMarkerSymbol.Size = 12;
    
    // Create a new Graphic object and define its Geometry and Symbol Properties.
    ESRI.ArcGIS.Client.Graphic aGraphic = new ESRI.ArcGIS.Client.Graphic();
    aGraphic.Geometry = (ESRI.ArcGIS.Client.Geometry.Geometry)aMapPoint;
    aGraphic.Symbol = (ESRI.ArcGIS.Client.Symbols.Symbol)aSimpleMarkerSymbol;
    
    // Define two Graphic.Attribute Properties from the TestData object. You could have defined more
    // Attributes but this was sufficient for the sample.
    aGraphic.Attributes.Add("Name", oneRecord.Name);
    aGraphic.Attributes.Add("Age", oneRecord.Age);
    
    // Add the Graphic to the GraphicsLayer.
    theGraphicsLayer.Graphics.Add(aGraphic);
  }
}

' SPECIAL INSTRUCTIONS:
' This example code reads information from a textfile to display Graphics on the Map. Use a text editor
' program (like Notepad) to add the following lines into the TestData.txt file and save it in the 
' \MyDocuments folder. NOTE: REMOVE THE STARTING COMMENT (' or //) BEFORE EACH LINE!
'
'-7356594.25,4752385.95,102100,Billy,11
'-5468910.57,1875915.58,102100,Sue,31
'-1558708.66,-326382.05,102100,Sam,78
'-4614958.43,-4191639.11,102100,Kate,44
  
' A simple Class that will hold all of the information to draw Graphics (with MapTips) on the Map Control.
Public Class TestData
  Public X As Integer ' X coordinate value
  Public Y As Integer ' Y coordinate value
  Public WKID As Integer ' The SpatialRefernce.WKID value
  Public Name As String ' An Attribute for a persons name
  Public Age As Integer ' An Attribute for a persons age
End Class
            
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
  
  ' Create a List(Of TestData) objects that will contain all of the information needed to draw Graphics
  ' with MapTips on the Map Control.
  Dim theTestData As New List(Of TestData)
  
  ' Load the List(Of TestData) objects from a textfile (.txt) on the local hard drive.
  theTestData = LoadTestData()
  
  ' Draw the Graphics (with configured MapTips) on the Map Control. 
  DrawTestData2(theTestData)
      
End Sub
            
Public Function LoadTestData() As List(Of TestData)
  
  ' This function will load data that is in a textfile (.txt) on the local hard drive into a
  ' List(Of TestData) objects.
  
  ' Create a new List(Of TestData).
  Dim theTestData As New List(Of TestData)
  
  ' Create an instance of the open file dialog box.
  Dim theOpenFileDialog As OpenFileDialog = New OpenFileDialog
  
  ' Set filter options and filter index.
  theOpenFileDialog.Filter = "Text Files (*.txt)|*.txt"
  theOpenFileDialog.FilterIndex = 1
  
  ' Only let the user select one textfile at a time
  theOpenFileDialog.Multiselect = False
  
  ' Call the ShowDialog method to show the dialogbox.
  Dim UserClickedOK As Boolean = theOpenFileDialog.ShowDialog
  
  ' Process input if the user clicked OK.
  If (UserClickedOK = True) Then
    
    'Open the selected file to read.
    Dim fileStream As System.IO.Stream = theOpenFileDialog.File.OpenRead
    
    ' Use a StreamReader to read the contents of the textfile
    Using reader As New System.IO.StreamReader(fileStream)
    
      ' Hold the contents of reading one line from the textfile.
      Dim line As String
      
      ' Loop through the textfile.
      Do
        
        ' Read one line from the StreamReader
        line = reader.ReadLine()
        
        ' Only process valid content
        If line IsNot Nothing Then
          
          ' Break (tokenize) the contents of a line of information into a String Array. 
          Dim parts As String() = Split(line, ",")
          
          ' Create a new instance of one TestData object and populate the various fields.
          Dim oneRecord As New TestData
          oneRecord.X = parts(0)
          oneRecord.Y = parts(1)
          oneRecord.WKID = parts(2)
          oneRecord.Name = parts(3)
          oneRecord.Age = parts(4)
          
          ' Add the TestData object to the List(of TestData).
          theTestData.Add(oneRecord)
          
        End If
        
      ' Break out of the StreamReader if we don't have valid data.
      Loop Until line Is Nothing
      
    End Using ' Close the Using logic flow.
    
    ' Close the StreamReader.
    fileStream.Close()
  End If
  
  ' Return the List(Of TestData).
  Return theTestData
  
End Function
            
Public Sub DrawTestData2(ByVal theTestData As List(Of TestData))
  
  ' Loop through all of the List(Of TestData) objects, construct Graphics with Attributes, and add the 
  ' Graphics to the GraphicsLayer to render on the Map Control.
  
  ' Obtain the GraphicsLayer that was defined in XAML. Note: the look and feel of the MapTips are defined in
  ' the XAML for the GraphicsLayer.MapTips. 
  Dim theGraphicsLayer As ESRI.ArcGIS.Client.GraphicsLayer
  theGraphicsLayer = CType(Map1.Layers("MyGraphicsLayer"), ESRI.ArcGIS.Client.GraphicsLayer)
  
  ' Loop through the List(Of TestData) objects.
  Dim oneRecord As TestData
  For Each oneRecord In theTestData
    
    ' Construct a new MapPoint geometric object from the TestData .X and .Y fields.
    Dim aMapPoint As New ESRI.ArcGIS.Client.Geometry.MapPoint
    aMapPoint.X = oneRecord.X
    aMapPoint.Y = oneRecord.Y
    
    ' Construct a new SpatialReference object from a TestData.WKID field and use it for the MapPoint.
    Dim aSpatialReference As New ESRI.ArcGIS.Client.Geometry.SpatialReference(oneRecord.WKID)
    aMapPoint.SpatialReference = aSpatialReference
    
    ' Create SimpleMarkerSymbol for the Graphic's Symbology.
    Dim aSimpleMarkerSymbol As New ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol
    aSimpleMarkerSymbol.Color = New System.Windows.Media.SolidColorBrush(Colors.Yellow)
    aSimpleMarkerSymbol.Style = ESRI.ArcGIS.Client.Symbols.SimpleMarkerSymbol.SimpleMarkerStyle.Diamond
    aSimpleMarkerSymbol.Size = 12
    
    ' Create a new Graphic object and define its Geometry and Symbol Properties.
    Dim aGraphic As New ESRI.ArcGIS.Client.Graphic
    aGraphic.Geometry = CType(aMapPoint, ESRI.ArcGIS.Client.Geometry.Geometry)
    aGraphic.Symbol = CType(aSimpleMarkerSymbol, ESRI.ArcGIS.Client.Symbols.Symbol)
    
    ' Define two Graphic.Attribute Properties from the TestData object. You could have defined more
    ' Attributes but this was sufficient for the sample.
    aGraphic.Attributes.Add("Name", oneRecord.Name)
    aGraphic.Attributes.Add("Age", oneRecord.Age)
    
    ' Add the Graphic to the GraphicsLayer.
    theGraphicsLayer.Graphics.Add(aGraphic)
  Next
  
End Sub