EnsureSignatures()
{
//
// if _reachSignaturs is not null we have already initialized this
//
if (null != _reachSignatures)
{
return;
}
_reachSignatures = new Collection <XpsDigitalSignature>();
PackageDigitalSignatureManager packageSignatures = new PackageDigitalSignatureManager(CurrentXpsManager.MetroPackage);
foreach (PackageDigitalSignature packSignature in packageSignatures.Signatures)
{
XpsDigitalSignature reachSignature = new XpsDigitalSignature(packSignature, this);
//
// Only add signatures that meet the policy for
// signed Document Sequences
//
if (reachSignature.SignedDocumentSequence != null)
{
_reachSignatures.Add(reachSignature);
}
}
}
RemoveSignature(
XpsDigitalSignature signature
)
{
CheckDisposed();
if (null == signature)
{
throw new ArgumentNullException("signature");
}
if (null == signature.PackageSignature)
{
throw new NullReferenceException("signature.PackageSignature");
}
if (null == signature.PackageSignature.SignaturePart)
{
throw new NullReferenceException("signature.PackageSignature.SignaturePart");
}
if (CurrentXpsManager == null)
{
throw new InvalidOperationException(SR.Get(SRID.ReachPackaging_DocumentWasClosed));
}
PackageDigitalSignatureManager packageSignatures = new PackageDigitalSignatureManager(CurrentXpsManager.MetroPackage);
packageSignatures.RemoveSignature(signature.PackageSignature.SignaturePart.Uri);
_reachSignatures = null;
_reachSignatureList = null;
EnsureSignatures();
}
AddSignature(PackageDigitalSignature packSignature)
{
XpsDigitalSignature reachSignature =
new XpsDigitalSignature(packSignature, this);
_reachSignatures.Add(reachSignature);
return(reachSignature);
}