Getting value stored in a variable in botframework suggested actions

问题

how to get the value "yes" or "no" stored into a variable? i am trying to store the value yes or no when a user clicks the button but it is not taking the value into k

var activity1 = MessageFactory.SuggestedActions(  
new CardAction[]
{
    new CardAction(title: "YES", type: ActionTypes.ImBack,value:"yes"),
    new CardAction( title: "NO", type: ActionTypes.ImBack, value: "no")
}, text: "Do you want to continue Shopping?");
var k=await context.SendActivityAsync(activity1);

回答1:

Unfortunately, context.SendActivityAsync() does not return the value that the user input, it simply sends the activity without even waiting for the user to respond.

There's a couple of options to accomplish what you're looking for.

1. Keep Your Code As-Is

You can keep your code mostly like it is and access the value of the user input within OnTurnAsync() with something like:

var k = turnContext.Activity.Text

What you do from there is up to you. The Simple Prompt Sample shows you how you can do this, too.

2. Use a Waterfall Dialog

I'd recommend using a ChoicePrompt, instead of CardActions.

Relevant code for you would be something like (note that this would be in addition to other necessary WaterfallDialog code):

private static async Task<DialogTurnResult> FirstStepAsync(WaterfallStepContext stepContext, CancellationToken cancellationToken = default(CancellationToken))
{
    return await stepContext.PromptAsync(
        "choicePrompt",
        new PromptOptions
        {
            Prompt = MessageFactory.Text("Select an Action"),
            Choices = new List<Choice> { new Choice("Yes"), new Choice("No") },
        });
}

private static async Task<DialogTurnResult> SecondStepAsync(WaterfallStepContext stepContext, CancellationToken cancellationToken = default(CancellationToken))
{
    var k = ((FoundChoice)stepContext.Result).Value.ToString();
    return await stepContext.NextAsync();
}

The Basic Bot Sample has very good examples of using Waterfall Dialogs.

Other References

Prompting Users for Input
Sequential Conversation Flow
Getting Input from Dialog Prompts

来源：https://stackoverflow.com/questions/55045440/getting-value-stored-in-a-variable-in-botframework-suggested-actions

标签

botframework