我正在创建一个PromptDialog Choice,它填充了我在Database中存储的对象选项列表。但是,它仅显示对象的类型而不是选项的名称。任何人都可以建议我从数据库加载Option并使用PromptDialog绑定它的最佳方法吗? 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);
}
}
这是我的选项对象:
[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;
}
}
答案 0 :(得分:4)
覆盖Option对象的ToString()方法解决了这个问题。
如果您不提供PromptStyle作为参数,默认情况下Microsoft botframework使用PromptStyle.Auto打印选项。因此,botframework根据频道选择样式。对于模拟器,它似乎是文本,因此它尝试将选项打印为字符串。
答案 1 :(得分:0)
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;
}
public override string ToString()
{
return Text;
}
}