Public Property ClientCertificate As X509Certificate

public X509Certificate ClientCertificate {get; set;}

<Grid>
            
  <!-- Add a Map control. -->
  <esri:Map x:Name="MyMap" Margin="0,124,0,0"/>
  
  <!-- Add a Button to choose certificate. -->
  <Label Content="Step1:" Height="28" HorizontalAlignment="Left" Name="Label1" VerticalAlignment="Top" Margin="0,81,0,0" />
  <Button Content="Load Certificate" Height="23" HorizontalAlignment="Right" Margin="0,84,320,0" 
          Name="Button_LoadCertificate" VerticalAlignment="Top" Width="134" Click="Button_LoadCertificate_Click"/>
  
  <!-- Add a Button to add an ArcGISDynamicMapServiceLayer. The button is disabled by default until a certificate is chosen. -->
  <Label Content="Step2:" Height="28" HorizontalAlignment="Left" Margin="0,110,0,0" Name="Label2" VerticalAlignment="Top" />
  <Button Content="Add Secured ArcGISDynamicMapServiceLayer" Height="23" HorizontalAlignment="Left" 
          Margin="49,110,0,0" Name="Button_Add_Secured_ArcGISDynamicMapServiceLayer" VerticalAlignment="Top" Width="297" 
          Click="Button_Add_Secured_ArcGISDynamicMapServiceLayer_Click"/>
  
  <!-- Provide the instructions on how to use the sample code. -->
  <TextBlock Height="75" HorizontalAlignment="Left" Name="TextBlock1" VerticalAlignment="Top" Width="503" 
             TextWrapping="Wrap" Text="Click the 'Load Certificate' button to choose a Public Key Infrasturcture (PKI) certificate from 
             the dialog. Then click the 'Add Secured ArcGISDynamicMapServiceLayer' button to add 
             a secured layer to the Map. It is required to edit the code-behind and specify 
             your https:// Url for the secured ArcGISDynamicMapServiceLayer." />
  
</Grid>

private void MainWindow_Loaded(object sender, System.Windows.RoutedEventArgs e)
{
  // Do not enable the ability to load the secured layer until after the certificate is obtained.
  Button_Add_Secured_ArcGISDynamicMapServiceLayer.IsEnabled = false;
}
            
// Global (i.e. Member) variable for the certificate.
public System.Security.Cryptography.X509Certificates.X509Certificate _TheClientCertificate = new System.Security.Cryptography.X509Certificates.X509Certificate();
            
private void Button_LoadCertificate_Click(object sender, System.Windows.RoutedEventArgs e)
{
  // Create a new instance of a X509Store object (which is a physical store where certificates are persisted and managed).
  // The X509Store object uses a StoreName based upon a 'personal certificate' and a StoreLocation for the user that 
  // is currently logged in. The X509Store is accessed as ReadOnly to obtain the certificate. 
  // NOTE: Don't forget to add a Reference to the System.Security Assembly. 
  System.Security.Cryptography.X509Certificates.X509Store theX509Store = null;
  System.Security.Cryptography.X509Certificates.StoreName theStoreName = System.Security.Cryptography.X509Certificates.StoreName.My;
  System.Security.Cryptography.X509Certificates.StoreLocation theStoreLocation = System.Security.Cryptography.X509Certificates.StoreLocation.CurrentUser;
  theX509Store = new System.Security.Cryptography.X509Certificates.X509Store(theStoreName, theStoreLocation);
  theX509Store.Open(System.Security.Cryptography.X509Certificates.OpenFlags.ReadOnly);
  
  // Obtain the collection of certificates in the X509Store. Note: depending on your organization there may multiple certificates!
  System.Security.Cryptography.X509Certificates.X509Certificate2Collection certificates = theX509Store.Certificates;
  
  // Display a dialog that prompts the user to select the correct certificate from the list of certificates available in the X509Store.
  // If the correct certificate is chosen and the user clicks the button to load the secured ArcGISDynamicMapServiceLayer it should
  // display in the Map control. If a wrong certificate is chosen and then user then clicks the button to load the secured 
  // ArcGISDynamicMapServiceLayer, the InitializationFailed event will fire and display an error message with text similar to: 
  // "Error initializing layer: The remote server returned an error: (403) Forbidden."
  // or:
  // "Error Initializing layer: The remote server returned and error: (401) Unauthorized."
  string theTitle = "Select a certificate";
  string theMessage = "Select the certificate to use for authentication to access the secured ArcGISSynamicMapServiceLayer.";
  System.Security.Cryptography.X509Certificates.X509SelectionFlag theSelectionFlag = System.Security.Cryptography.X509Certificates.X509SelectionFlag.SingleSelection;
  certificates = System.Security.Cryptography.X509Certificates.X509Certificate2UI.SelectFromCollection(certificates, theTitle, theMessage, theSelectionFlag);
  
  // Only continue if at least one certificate is chosen.
  if (certificates.Count > 0)
  {
    // Set the X509Certificate global variable. This will be used in constructing the ArcGISDynamicMapServiceLayer. 
    _TheClientCertificate = certificates[0];
    
    // Enable the ability for the user to draw the secured ArcGISDynamicMapServiceLayer.
    Button_Add_Secured_ArcGISDynamicMapServiceLayer.IsEnabled = true;
  }
}
            
private void Button_Add_Secured_ArcGISDynamicMapServiceLayer_Click(object sender, System.Windows.RoutedEventArgs e)
{
  // Create a new instance of an ArcGISDynamicMapServiceLayer.
  ESRI.ArcGIS.Client.ArcGISDynamicMapServiceLayer theArcGISDynamicMapServiceLayer = new ESRI.ArcGIS.Client.ArcGISDynamicMapServiceLayer();
  
  // Set its ID value. That way you can access it by name in other parts of the application if desired.
  theArcGISDynamicMapServiceLayer.ID = "MyArcGISDynamicMapServiceLayer";
  
  // TODO: Provide the URL to the ArcGISDynamicMapSerciceLayer. Typically the URL will begin with https:// (denoting a 
  // secured service) rather than http:// (which usually denotes a public service).
  theArcGISDynamicMapServiceLayer.Url = "https://www.yoursite.com/arcgis/rest/services/test/us_counties/MapServer";
  
  // Set the ArcGISDynamicMapServiceLayer.ClientCertficate property to the X509Certificate global variable that was chosen by the user. 
  theArcGISDynamicMapServiceLayer.ClientCertificate = _TheClientCertificate;
  
  // Wire up an event handler for the ArcGISDynamicMapServiceLayer.InitializationFailed event in case there is a problem loading
  // the layer. 
  theArcGISDynamicMapServiceLayer.InitializationFailed += ArcGISDynamicMapServiceLayer_InitializationFailed;
  
  // Add the secured ArcGISDynamicMapServiceLayer to the Map.
  MyMap.Layers.Add(theArcGISDynamicMapServiceLayer);
}
            
private void ArcGISDynamicMapServiceLayer_InitializationFailed(object sender, EventArgs e)
{
  // Display a MessageBox with Error information if there is a problem loading the ArcGISDynamicMapServiceLayer. 
  ESRI.ArcGIS.Client.Layer theLayer = (ESRI.ArcGIS.Client.Layer)sender;
  MessageBox.Show("Error initializing layer: " + theLayer.InitializationFailure.Message);
}

Private Sub MainWindow_Loaded(sender As Object, e As System.Windows.RoutedEventArgs) Handles Me.Loaded
  
  ' Do not enable the ability to load the secured layer until after the certificate is obtained.
  Button_Add_Secured_ArcGISDynamicMapServiceLayer.IsEnabled = False
  
End Sub
            
' Global (i.e. Member) variable for the certificate.
Public _TheClientCertificate As New System.Security.Cryptography.X509Certificates.X509Certificate
            
Private Sub Button_LoadCertificate_Click(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles Button_LoadCertificate.Click
  
  ' Create a new instance of a X509Store object (which is a physical store where certificates are persisted and managed).
  ' The X509Store object uses a StoreName based upon a 'personal certificate' and a StoreLocation for the user that 
  ' is currently logged in. The X509Store is accessed as ReadOnly to obtain the certificate.
  ' NOTE: Don't forget to add a Reference to the System.Security Assembly. 
  Dim theX509Store As Security.Cryptography.X509Certificates.X509Store
  Dim theStoreName As Security.Cryptography.X509Certificates.StoreName = Security.Cryptography.X509Certificates.StoreName.My
  Dim theStoreLocation As Security.Cryptography.X509Certificates.StoreLocation = Security.Cryptography.X509Certificates.StoreLocation.CurrentUser
  theX509Store = New Security.Cryptography.X509Certificates.X509Store(theStoreName, theStoreLocation)
  theX509Store.Open(Security.Cryptography.X509Certificates.OpenFlags.ReadOnly)
  
  ' Obtain the collection of certificates in the X509Store. Note: depending on your organization there may multiple certificates!
  Dim certificates As Security.Cryptography.X509Certificates.X509Certificate2Collection = theX509Store.Certificates
  
  ' Display a dialog that prompts the user to select the correct certificate from the list of certificates available in the X509Store.
  ' If the correct certificate is chosen and the user clicks the button to load the secured ArcGISDynamicMapServiceLayer it should
  ' display in the Map control. If a wrong certificate is chosen and then user then clicks the button to load the secured 
  ' ArcGISTiledMapServiceLayer, the InitializationFailed event will fire and display an error message with text similar to:
  ' "Error initializing layer: The remote server returned an error: (403) Forbidden."
  ' or:
  ' "Error Initializing layer: The remote server returned and error: (401) Unauthorized."
  Dim theTitle As String = "Select a certificate"
  Dim theMessage As String = "Select the certificate to use for authentication to access the secured ArcGISSynamicMapServiceLayer."
  Dim theSelectionFlag As Security.Cryptography.X509Certificates.X509SelectionFlag = Security.Cryptography.X509Certificates.X509SelectionFlag.SingleSelection
  certificates = Security.Cryptography.X509Certificates.X509Certificate2UI.SelectFromCollection(certificates, theTitle, theMessage, theSelectionFlag)
  
  ' Only continue if at least one certificate is chosen.
  If certificates.Count > 0 Then
    
    ' Set the X509Certificate global variable. This will be used in constructing the ArcGISDynamicMapServiceLayer. 
    _TheClientCertificate = certificates(0)
    
    ' Enable the ability for the user to draw the secured ArcGISDynamicMapServiceLayer.
    Button_Add_Secured_ArcGISDynamicMapServiceLayer.IsEnabled = True
  End If
  
End Sub
  
Private Sub Button_Add_Secured_ArcGISDynamicMapServiceLayer_Click(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles Button_Add_Secured_ArcGISDynamicMapServiceLayer.Click
  
  ' Create a new instance of an ArcGISDynamicMapServiceLayer.
  Dim theArcGISDynamicMapServiceLayer As New ESRI.ArcGIS.Client.ArcGISDynamicMapServiceLayer
  
  ' Set its ID value. That way you can access it by name in other parts of the application if desired.
  theArcGISDynamicMapServiceLayer.ID = "MyArcGISDynamicMapServiceLayer"
  
  ' TODO: Provide the URL to the ArcGISDynamicMapSerciceLayer. Typically the URL will begin with https:// (denoting a 
  ' secured service) rather than http:// (which usually denotes a public service).
  theArcGISDynamicMapServiceLayer.Url = "https://www.yoursite.com/arcgis/rest/services/test/us_counties/MapServer"
  
  ' Set the ArcGISDynamicMapServiceLayer.ClientCertficate property to the X509Certificate global variable that was chosen by the user. 
  theArcGISDynamicMapServiceLayer.ClientCertificate = _TheClientCertificate
  
  ' Wire up an event handler for the ArcGISDynamicMapServiceLayer.InitializationFailed event in case there is a problem loading
  ' the layer. 
  AddHandler theArcGISDynamicMapServiceLayer.InitializationFailed, AddressOf ArcGISDynamicMapServiceLayer_InitializationFailed
  
  ' Add the secured ArcGISDynamicMapServiceLayer to the Map.
  MyMap.Layers.Add(theArcGISDynamicMapServiceLayer)
  
End Sub
            
Private Sub ArcGISDynamicMapServiceLayer_InitializationFailed(sender As Object, e As EventArgs)
  
  ' Display a MessageBox with Error information if there is a problem loading the ArcGISDynamicMapServiceLayer. 
  Dim theLayer As ESRI.ArcGIS.Client.Layer = CType(sender, ESRI.ArcGIS.Client.Layer)
  MessageBox.Show("Error initializing layer: " + theLayer.InitializationFailure.Message)
  
End Sub