我无法将文件附件从机器人发送给 Skype 中的用户。我正在使用 bot builder 版本 3.5.0。
下面是我的代码。
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);