仅在更改提示中隐藏 "No Preference" 按钮

Question

我只想删除表单流中 "Change prompt" 中的 "No Preference" 或至少更改它的文本，以便仅在确认提示中保留带有 "No Preference" 选项的表单.

我可以更改它的文本，但它更改了整个表格并且对我不起作用。

public static IForm<PromoBot> BuildForm()
    var form = new FormBuilder<PromoBot>()
        .Message("Hi......!")
        .Field(nameof(Nome), validate: async (state, value) =>
            {
                ..........
                result.IsValid = true;
                return result;
            }, active: state => true)
        .Message("xxxxxx")
        .Field(nameof(CEP)
        .Field(nameof(Estados))
        .Confirm(async (state) =>
        {
            return new PromptAttribute("You have selected the following:  \n {*} "Is this correct?{||}");
        })
        .Message("Excelente! Agora vou precisar de alguns segundos para encontrar o melhor plano para sua empresa… já volto!")
        .OnCompletion(OnComplete);

    var noPreferenceStrings = new string[] { "New Text" };
    form.Configuration.Templates.Single(t => t.Usage == TemplateUsage.NoPreference).Patterns = noPreferenceStrings;
    form.Configuration.NoPreference = noPreferenceStrings;

    return form.Build();
}

Answer 1

通常您可以使用模板属性来修改 FormFlow 的行为，但导航步骤有点挑剔。我认为在这种情况下最好的办法是为您的表格提供 custom prompter.

在您的情况下，代码可能如下所示：

public static IForm<MyClass> BuildForm()
{
    var formBuilder = new FormBuilder<MyClass>()
        .Field(nameof(FirstName))
        .Field(nameof(LastName))
        .Confirm("Is this okay? {*}")
        .Prompter(PromptAsync)
        ;

    return formBuilder.Build();
}

/// <summary>
/// Here is the method we're using for the PromptAsyncDelgate.
/// </summary>
private static async Task<FormPrompt> PromptAsync(IDialogContext context, FormPrompt prompt,
    MyClass state, IField<MyClass> field)
{
    var preamble = context.MakeMessage();
    var promptMessage = context.MakeMessage();

    // Check to see if the form is on the navigation step
    if (field.Name.Contains("navigate") && prompt.Buttons.Any())
    {
        // If it's on the navigation step,
        // we want to change or remove the No Preference line

        if (you_want_to_change_it)
        {
            var noPreferenceButton = prompt.Buttons.Last();
            // Make sure the Message stays the same or else
            // FormFlow won't know what to do when this button is clicked
            noPreferenceButton.Message = noPreferenceButton.Description;
            noPreferenceButton.Description = "Back"; 
        }
        else if(you_want_to_remove_it)
        {
            prompt.Buttons.RemoveAt(prompt.Buttons.Count - 1);
        }
    }

    if (prompt.GenerateMessages(preamble, promptMessage))
    {
        await context.PostAsync(preamble);
    }

    await context.PostAsync(promptMessage);

    return prompt;
}

补充说明："Back"实际上是FormFlow中的一个特殊命令。 "No Preference" 将带您返回确认步骤，而 "Back" 将带您到表单中的最后一个字段。如果你真的想在你的导航步骤中放置一个后退按钮，你可以省略这一行：

noPreferenceButton.Message = noPreferenceButton.Description;

仅在更改提示中隐藏 "No Preference" 按钮

Hide "No Preference" button only in the change prompt

c#

botframework

formflow