(C#) Transition from Email.GetSignedByCertChain to Email.LastSignerCert

Provides instructions for replacing deprecated GetSignedByCertChain method calls with LastSignerCert.

Note: This example requires Chilkat v11.0.0 or greater.

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Chilkat.Email email = new Chilkat.Email();

// ...
// ...

// ------------------------------------------------------------------------
// The GetSignedByCertChain method is deprecated:

Chilkat.CertChain certChainObj = email.GetSignedByCertChain();
if (email.LastMethodSuccess == false) {
    Debug.WriteLine(email.LastErrorText);
    return;
}

// ...
// ...

// ------------------------------------------------------------------------
// Do the equivalent using LastSignerCert to get the signing certificate,
// then build the cert chain from the signing certificate object.

Chilkat.Cert signerCert = new Chilkat.Cert();
bool success = email.LastSignerCert(0,signerCert);
if (success == false) {
    Debug.WriteLine(email.LastErrorText);
    return;
}

// Get the certificate chain from the signer certificate.
Chilkat.CertChain certChain = new Chilkat.CertChain();
success = signerCert.BuildCertChain(certChain);
if (success == false) {
    Debug.WriteLine(signerCert.LastErrorText);
    return;
}