Я не могу отправить вложенный файл от бота пользователю в Skype. Я использую конструктор ботов версии 3.5.0.
Ниже мой код.
ConnectorClient connector = new ConnectorClient(new Uri(activity.ServiceUrl));
Activity reply = activity.CreateReply("blah");
reply.Attachments = new List();
Attachment attach = new Attachment();
attach.ContentType = "application/pdf";
// I can browse the below URL in browser and access the PDF
attach.ContentUrl = "https://test.azurewebsites.net/Image/Test.pdf";
attach.Name = "Test.pdf";
attach.Content = "Test";
attach.ThumbnailUrl = attach.ContentUrl;
reply.Attachments.Add(attach);
await connector.Conversations.ReplyToActivityAsync(reply);