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GrapeCity.Documents.Excel.ISignature.Countersign

Countersign Method

Countersign(X509Certificate2)

Countersign the signature, if the signature has been signed.

Declaration
void Countersign(X509Certificate2 certificate)
Sub Countersign(certificate As X509Certificate2)
Parameters
Type Name Description
X509Certificate2 certificate

The certificate that will be used to countersign this signature.

Exceptions
Type Condition
InvalidOperationException

The signature was not signed.