User-893317190 posted
Hi castlesb,
Service Proxy has ClientCredentials property that could set certificate
client.ClientCredentials.ClientCertificate.SetCertificate(
StoreLocation.LocalMachine,
StoreName.My,
X509FindType.FindBySubjectName,
"cohowinery.com");
You could refer to the link below to learn how to add certificate to a asmx client
https://stackoverflow.com/questions/36181256/how-to-invoke-a-web-service-which-requires-a-certificate-in-c
Best regards,
Ackerly Xu