如何让用户在botframework中发送图像附件

Question

[Serializable]
public class VehicleForm
{
    [Prompt("When did this happen")]
    public DateTime LossDate { get; set; }

    [Prompt("Please upload proof image")]
    public byte Picture { get; set; }

我希望用户能够在bot框架中填写表单时包含图像。我将图片字段声明为字节，但在上传图片时没有工作。这有可能实现吗？如果有，请有人向我介绍如何去做吗？谢谢

Answer 1

这样做有sample in the SDK Repository。

从示例中看，您需要使用AwaitableAttachment类型，请查看ImagesForm：

// Attachment field has no validation - any attachment would work
public AwaitableAttachment BestImage;

// Attachment field is optional - validation is done through AttachmentContentTypeValidator usage
[Optional]
[AttachmentContentTypeValidator(ContentType = "png")]
public AwaitableAttachment SecondaryImage;