使用列表对象Bot框架提示对话框选择

Question

我正在创建一个PromptDialog Choice，它将填充存储在数据库中的对象选项列表。 但是，它仅显示对象的类型，而不显示选项的名称。 谁能建议我从数据库加载Option并将其与PromptDialog绑定的最佳方法？ 这是我尝试过的：

private void ShowOptions(IDialogContext context)
{
    List<Option> ListOptions = Option.CreateListOption();
    PromptDialog.Choice(context, this.OnOptionSelected, ListOptions, "Are you looking for a flight or a hotel?", "Not a valid option", 3);
}
private async Task OnOptionSelected(IDialogContext context, IAwaitable<Option> result)
{
    try
    {

        Option optionSelected = await result;

        switch (optionSelected.Text )
        {
            case "A":
                context.Call(new RootDialog(), this.ResumeAfterChoose);
                break;
            default: { context.Wait(MessageReceiveAsync); break; }
        }
    }
    catch (TooManyAttemptsException ex)
    {
        await context.PostAsync($"Ooops! Too many attemps :(. But don't worry, I'm handling that exception and you can try again!");

        context.Wait(this.MessageReceiveAsync);
    }
}

这是

  [Serializable]

public class Option
{
    public int ID { get; set; }
    public string Text { get; set; }
    public Option()
    {
        ID = 0;
        Text = "";
    }
    public static List<Option> CreateListOption()
    {
        List<Option> list = new List<Option>();
        Option A = new Option();
        A.ID = 1;
        A.Text = "A";
        Option B = new Option();
        B.ID = 2;
        B.Text = "B";
        list.Add(A);
        list.Add(B);
        return list;
    }
}

这是我得到的结果：

Answer 1

Choice静态方法还包含一个Descriptions参数。 您可以尝试以下方法：

• 对于选项，发送包含选项ID的List<int>
• 有关说明，请发送选项文本。

Answer 2

如Ezequiel所述，您可以提供Descriptions参数，例如：

    PromptDialog.Choice(context, this.OnOptionSelected, 
          ListOptions.Select(l=>l.ID).ToArray(),
          "Are you looking for a flight or a hotel?", "Not a valid option", 3,
         descriptions: ListOptions.Select(l=>l.Text).ToArray() );

然后将您的OnOptionSelected更改为：

    private async Task OnOptionSelected(IDialogContext context, IAwaitable<int> result)
    {
        try
        {

            int optionSelected = await result;
            var foundOption = Option.CreateListOption().First(o => o.ID == optionSelected);
//do more with foundOption
            switch (optionSelected)
            {
                case 1:
                    context.Call(new RootDialog(), this.ResumeAfterChoose);
                    break;
                default: { context.Wait(MessageReceivedAsync); break; }
            }
        }
        catch (TooManyAttemptsException ex)
        {
            await context.PostAsync($"Ooops! Too many attemps :(. But don't worry, I'm handling that exception and you can try again!");

            context.Wait(this.MessageReceivedAsync);
        }
    }