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X509ServiceCertificateAuthentication.CertificateValidationMode Property

Gets the certificate validation mode.

Namespace:  System.ServiceModel.Security
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

public X509CertificateValidationMode CertificateValidationMode { get; set; }

This enumeration captures the options for determining the validity of the service certificate obtained using SSL/TLS negotiation. For a list of the enumeration members, see X509CertificateValidationMode.

The following code shows how to set this property.

ClientCredentials creds = new ClientCredentials();
// Configure peer trust.
creds.ServiceCertificate.Authentication.CertificateValidationMode =
          X509CertificateValidationMode.PeerTrust;

// Configure chain trust.
creds.ServiceCertificate.Authentication.CertificateValidationMode =
              X509CertificateValidationMode.ChainTrust;

// Configure custom certificate validation.
creds.ServiceCertificate.Authentication.CertificateValidationMode =
              X509CertificateValidationMode.Custom;
creds.ServiceCertificate.Authentication.CustomCertificateValidator =
    new MyCertificateValidator();

The property can also be set in a configuration file.

    <behaviors>
      <endpointBehaviors>
        <behavior name="behave">
          <clientCredentials>
            <serviceCertificate>
              <authentication certificateValidationMode='ChainTrust' />
            </serviceCertificate>
          </clientCredentials>
        </behavior>
      </endpointBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0

.NET Compact Framework

Supported in: 3.5

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