protected override IAsyncResult BeginExecute(AsyncCodeActivityContext context, AsyncCallback callback, object state)
{
LoadAuthentication(context);
if (EnvelopeID.Get(context) != null)
{
mEnvelopeID = EnvelopeID.Get(context);
}
else
{
throw new System.ArgumentException("Envelope ID is required!");
}
if (DocumentID.Get(context) != null)
{
mDocumentID = DocumentID.Get(context);
}
else
{
throw new System.ArgumentException("Document ID is required!");
}
if (OutFile.Get(context) != null)
{
mOutFile = OutFile.Get(context);
}
else
{
throw new System.ArgumentException("Output filepath is required!");
}
GetDocumentDelegate = new Action(_DownloadDocument);
return(GetDocumentDelegate.BeginInvoke(callback, state));
}
