标签：botframework waterfall bots dialog c
我正在尝试发送具有2个选项供用户选择的自适应卡.
当用户提交自适应卡的响应时,我将收到：
Newtonsoft.Json.JsonReaderException: Error reading JArray from JsonReader. Current JsonReader item is not an array: StartObject. Path ‘[‘BotAccessors.DialogState’].DialogStack.$values[0].State.options.Prompt.attachments.$values[0].content.body’.
完整代码示例链接：Manage a complex conversation flow with dialogs
在HotelDialogs.cs中进行的修改：-
public static async Task<DialogTurnResult> PresentMenuAsync(
WaterfallStepContext stepContext,
CancellationToken cancellationToken)
{
// Greet the guest and ask them to choose an option.
await stepContext.Context.SendActivityAsync(
"Welcome to Contoso Hotel and Resort.",
cancellationToken: cancellationToken);
//return await stepContext.PromptAsync(
// Inputs.Choice,
// new PromptOptions
// {
// Prompt = MessageFactory.Text("How may we serve you today?"),
// RetryPrompt = Lists.WelcomeReprompt,
// Choices = Lists.WelcomeChoices,
// },
// cancellationToken);
var reply = stepContext.Context.Activity.CreateReply();
reply.Attachments = new List<Attachment>
{
new Attachment
{
Content = GetAnswerWithFeedbackSelectorCard("Choose: "),
ContentType = AdaptiveCard.ContentType,
},
};
return await stepContext.PromptAsync(
"testPrompt",
new PromptOptions
{
Prompt = reply,
RetryPrompt = Lists.WelcomeReprompt,
},
cancellationToken).ConfigureAwait(true);
}
注意：[“ testPrompt”]我尝试使用文本提示,并稍微自定义了TextPrompt以读取“活动值”.如果“文本”提示不是自适应卡响应的适当提示,请告诉我还有其他可用提示,或者某些自定义提示将对这种情况有所帮助.
自定义提示：-
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Bot.Builder;
using Microsoft.Bot.Builder.Dialogs;
using Microsoft.Bot.Schema;
namespace HotelBot
{
public class CustomPrompt : Prompt<string>
{
public CustomPrompt(string dialogId, PromptValidator<string> validator = null)
: base(dialogId, validator)
{
}
protected async override Task OnPromptAsync(ITurnContext turnContext, IDictionary<string, object> state, PromptOptions options, bool isRetry, CancellationToken cancellationToken = default(CancellationToken))
{
if (turnContext == null)
{
throw new ArgumentNullException(nameof(turnContext));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
if (isRetry && options.RetryPrompt != null)
{
await turnContext.SendActivityAsync(options.RetryPrompt, cancellationToken).ConfigureAwait(false);
}
else if (options.Prompt != null)
{
await turnContext.SendActivityAsync(options.Prompt, cancellationToken).ConfigureAwait(false);
}
}
protected override Task<PromptRecognizerResult<string>> OnRecognizeAsync(ITurnContext turnContext, IDictionary<string, object> state, PromptOptions options, CancellationToken cancellationToken = default(CancellationToken))
{
if (turnContext == null)
{
throw new ArgumentNullException(nameof(turnContext));
}
var result = new PromptRecognizerResult<string>();
if (turnContext.Activity.Type == ActivityTypes.Message)
{
var message = turnContext.Activity.AsMessageActivity();
if (!string.IsNullOrEmpty(message.Text))
{
result.Succeeded = true;
result.Value = message.Text;
}
else if (message.Value != null)
{
result.Succeeded = true;
result.Value = message.Value.ToString();
}
}
return Task.FromResult(result);
}
}
}
卡片制作方法：-
private static AdaptiveCard GetAnswerWithFeedbackSelectorCard(string answer)
{
if (answer == null)
{
return null;
}
AdaptiveCard card = new AdaptiveCard();
card.Body = new List<AdaptiveElement>();
var choices = new List<AdaptiveChoice>()
{
new AdaptiveChoice()
{
Title = "Reserve Table",
Value = "1",
},
new AdaptiveChoice()
{
Title = "Order food",
Value = "0",
},
};
var choiceSet = new AdaptiveChoiceSetInput()
{
IsMultiSelect = false,
Choices = choices,
Style = AdaptiveChoiceInputStyle.Expanded,
Value = "1",
Id = "Feedback",
};
var text = new AdaptiveTextBlock()
{
Text = answer,
Wrap = true,
};
card.Body.Add(text);
card.Body.Add(choiceSet);
card.Actions.Add(new AdaptiveSubmitAction() { Title = "Submit" });
return card;
}
谢谢！
解决方法:
在寻找前进的方向后,我发现：
因此,为了使Dialog的自适应卡响应起作用,我在Microsoft bot框架的Prompt.cs和TextPrompt.cs中分别进行了一次修改,以创建兼容的自适应卡提示.
Prompt.cs => Prompt2.cs;
TextPrompt.cs => CustomPrompt.cs
Prompt2.cs：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Bot.Builder.Dialogs.Choices;
using Microsoft.Bot.Schema;
using Newtonsoft.Json;
namespace Microsoft.Bot.Builder.Dialogs
{
//Reference: Prompt.cs
/// <summary>
/// Basic configuration options supported by all prompts.
/// </summary>
/// <typeparam name="T">The type of the <see cref="Prompt{T}"/>.</typeparam>
public abstract class Prompt2<T> : Dialog
{
private const string PersistedOptions = "options";
private const string PersistedState = "state";
private readonly PromptValidator<T> _validator;
public Prompt2(string dialogId, PromptValidator<T> validator = null)
: base(dialogId)
{
_validator = validator;
}
public override async Task<DialogTurnResult> BeginDialogAsync(DialogContext dc, object options, CancellationToken cancellationToken = default(CancellationToken))
{
if (dc == null)
{
throw new ArgumentNullException(nameof(dc));
}
if (!(options is PromptOptions))
{
throw new ArgumentOutOfRangeException(nameof(options), "Prompt options are required for Prompt dialogs");
}
// Ensure prompts have input hint set
var opt = (PromptOptions)options;
if (opt.Prompt != null && string.IsNullOrEmpty(opt.Prompt.InputHint))
{
opt.Prompt.InputHint = InputHints.ExpectingInput;
}
if (opt.RetryPrompt != null && string.IsNullOrEmpty(opt.RetryPrompt.InputHint))
{
opt.RetryPrompt.InputHint = InputHints.ExpectingInput;
}
// Initialize prompt state
var state = dc.ActiveDialog.State;
state[PersistedOptions] = opt;
state[PersistedState] = new Dictionary<string, object>();
// Send initial prompt
await OnPromptAsync(dc.Context, (IDictionary<string, object>)state[PersistedState], (PromptOptions)state[PersistedOptions], false, cancellationToken).ConfigureAwait(false);
// Customization starts here for AdaptiveCard Response:
/* Reason for removing the adaptive card attachments after prompting it to user,
* from the stat as there is no implicit support for adaptive card attachments.
* keeping the attachment will cause an exception : Newtonsoft.Json.JsonReaderException: Error reading JArray from JsonReader. Current JsonReader item is not an array: StartObject. Path ‘[‘BotAccessors.DialogState’].DialogStack.$values[0].State.options.Prompt.attachments.$values[0].content.body’.
*/
var option = state[PersistedOptions] as PromptOptions;
option.Prompt.Attachments = null;
/* Customization ends here */
return Dialog.EndOfTurn;
}
public override async Task<DialogTurnResult> ContinueDialogAsync(DialogContext dc, CancellationToken cancellationToken = default(CancellationToken))
{
if (dc == null)
{
throw new ArgumentNullException(nameof(dc));
}
// Don't do anything for non-message activities
if (dc.Context.Activity.Type != ActivityTypes.Message)
{
return Dialog.EndOfTurn;
}
// Perform base recognition
var instance = dc.ActiveDialog;
var state = (IDictionary<string, object>)instance.State[PersistedState];
var options = (PromptOptions)instance.State[PersistedOptions];
var recognized = await OnRecognizeAsync(dc.Context, state, options, cancellationToken).ConfigureAwait(false);
// Validate the return value
var isValid = false;
if (_validator != null)
{
}
else if (recognized.Succeeded)
{
isValid = true;
}
// Return recognized value or re-prompt
if (isValid)
{
return await dc.EndDialogAsync(recognized.Value).ConfigureAwait(false);
}
else
{
if (!dc.Context.Responded)
{
await OnPromptAsync(dc.Context, state, options, true).ConfigureAwait(false);
}
return Dialog.EndOfTurn;
}
}
public override async Task<DialogTurnResult> ResumeDialogAsync(DialogContext dc, DialogReason reason, object result = null, CancellationToken cancellationToken = default(CancellationToken))
{
// Prompts are typically leaf nodes on the stack but the dev is free to push other dialogs
// on top of the stack which will result in the prompt receiving an unexpected call to
// dialogResume() when the pushed on dialog ends.
// To avoid the prompt prematurely ending we need to implement this method and
// simply re-prompt the user.
await RepromptDialogAsync(dc.Context, dc.ActiveDialog).ConfigureAwait(false);
return Dialog.EndOfTurn;
}
public override async Task RepromptDialogAsync(ITurnContext turnContext, DialogInstance instance, CancellationToken cancellationToken = default(CancellationToken))
{
var state = (IDictionary<string, object>)instance.State[PersistedState];
var options = (PromptOptions)instance.State[PersistedOptions];
await OnPromptAsync(turnContext, state, options, false).ConfigureAwait(false);
}
protected abstract Task OnPromptAsync(ITurnContext turnContext, IDictionary<string, object> state, PromptOptions options, bool isRetry, CancellationToken cancellationToken = default(CancellationToken));
protected abstract Task<PromptRecognizerResult<T>> OnRecognizeAsync(ITurnContext turnContext, IDictionary<string, object> state, PromptOptions options, CancellationToken cancellationToken = default(CancellationToken));
protected IMessageActivity AppendChoices(IMessageActivity prompt, string channelId, IList<Choice> choices, ListStyle style, ChoiceFactoryOptions options = null, CancellationToken cancellationToken = default(CancellationToken))
{
// Get base prompt text (if any)
var text = prompt != null && !string.IsNullOrEmpty(prompt.Text) ? prompt.Text : string.Empty;
// Create temporary msg
IMessageActivity msg;
switch (style)
{
case ListStyle.Inline:
msg = ChoiceFactory.Inline(choices, text, null, options);
break;
case ListStyle.List:
msg = ChoiceFactory.List(choices, text, null, options);
break;
case ListStyle.SuggestedAction:
msg = ChoiceFactory.SuggestedAction(choices, text);
break;
case ListStyle.None:
msg = Activity.CreateMessageActivity();
msg.Text = text;
break;
default:
msg = ChoiceFactory.ForChannel(channelId, choices, text, null, options);
break;
}
// Update prompt with text and actions
if (prompt != null)
{
// clone the prompt the set in the options (note ActivityEx has Properties so this is the safest mechanism)
prompt = JsonConvert.DeserializeObject<Activity>(JsonConvert.SerializeObject(prompt));
prompt.Text = msg.Text;
if (msg.SuggestedActions != null && msg.SuggestedActions.Actions != null && msg.SuggestedActions.Actions.Count > 0)
{
prompt.SuggestedActions = msg.SuggestedActions;
}
return prompt;
}
else
{
msg.InputHint = InputHints.ExpectingInput;
return msg;
}
}
}
}
CustomPrompt.cs：
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Bot.Builder;
using Microsoft.Bot.Builder.Dialogs;
using Microsoft.Bot.Schema;
namespace HotelBot
{
//Reference: TextPrompt.cs
public class CustomPrompt : Prompt2<string>
{
public CustomPrompt(string dialogId, PromptValidator<string> validator = null)
: base(dialogId, validator)
{
}
protected async override Task OnPromptAsync(ITurnContext turnContext, IDictionary<string, object> state, PromptOptions options, bool isRetry, CancellationToken cancellationToken = default(CancellationToken))
{
if (turnContext == null)
{
throw new ArgumentNullException(nameof(turnContext));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
if (isRetry && options.RetryPrompt != null)
{
await turnContext.SendActivityAsync(options.RetryPrompt, cancellationToken).ConfigureAwait(false);
}
else if (options.Prompt != null)
{
await turnContext.SendActivityAsync(options.Prompt, cancellationToken).ConfigureAwait(false);
}
}
protected override Task<PromptRecognizerResult<string>> OnRecognizeAsync(ITurnContext turnContext, IDictionary<string, object> state, PromptOptions options, CancellationToken cancellationToken = default(CancellationToken))
{
if (turnContext == null)
{
throw new ArgumentNullException(nameof(turnContext));
}
var result = new PromptRecognizerResult<string>();
if (turnContext.Activity.Type == ActivityTypes.Message)
{
var message = turnContext.Activity.AsMessageActivity();
if (!string.IsNullOrEmpty(message.Text))
{
result.Succeeded = true;
result.Value = message.Text;
}
/*Add handling for Value from adaptive card*/
else if (message.Value != null)
{
result.Succeeded = true;
result.Value = message.Value.ToString();
}
}
return Task.FromResult(result);
}
}
}
因此,直到V4 botframework中的对话框的自适应卡提示正式发布之前,解决方法是使用此自定义提示.
用法：(仅用于发送具有提交操作的自适应卡)
参考问题部分中的示例：
Add(new CustomPrompt("testPrompt"));
在下一个瀑布步骤中将收到对自适应卡提交操作的响应：ProcessInputAsync()
var choice = (string)stepContext.Result;
选择将是自适应卡发布的正文的JSON字符串.
标签：botframework,waterfall,bots,dialog,c 来源： https://codeday.me/bug/20191108/2008150.html
本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享； 2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关； 3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关； 4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除； 5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。