Why the resume function don't work for context.Forward in bot framework? - botframework

Question

I'm new in Bot framework and I face this issue:
I want to move from dialog to another dialog, the callback function is working for context.Call but not for context.Forward?
I try multiple solutions such as put this.CallbackFunctionName but it dosen't work.
Here is my code for call new dialog:
switch (submitType)
{
case "alarm":
context.Call(new AlarmDialog(), ResumeAfterAlarmDialog);
context.Done(true);
return;
case "game":
await context.Forward(new AlarmDialog(), ResumeAfterAlarmDialog, value, CancellationToken.None);
return;
}
And here the method that I call:
private async Task ResumeAfterAlarmDialog(IDialogContext context, IAwaitable<object> result)
{
await context.PostAsync($"You are finish the alarm dialog");
context.Wait(this.MessageReceivedAsync);
}
And this is the error that I have for the context.Forward:
cannot use a method group as an argument to a dynamically dispatched operation.Did you intend to invoke the method?
Here the full implementation of the class:
namespace CardEx.Dialogs
{
[Serializable]
public class RootDialog : IDialog<object>
{
public Task StartAsync(IDialogContext context)
{
context.Wait(MessageReceivedAsync);
return Task.CompletedTask;
}
private async Task MessageReceivedAsync(IDialogContext context, IAwaitable<object> result)
{
var activity = await result as Activity;
if (activity.Value != null)
{
// Got an Action Submit
dynamic value = activity.Value;
string submitType = value.Type.ToString();
switch (submitType)
{
case "alarm":
context.Call(new AlarmDialog(), ResumeAfterAlarmDialog);
return;
case "alarm2":
await context.Forward(new AlarmDialog(), ResumeAfterAlarmDialog, value, CancellationToken.None);
return;
}
}
AdaptiveCard aCard = new AdaptiveCard()
{
Body = new List<AdaptiveElement>()
{
new AdaptiveTextBlock()
{
Text = "Welcome!",
Weight = AdaptiveTextWeight.Bolder,
Size = AdaptiveTextSize.Large
},
new AdaptiveTextBlock() { Text = "Please choose one of the following:" },
},
Actions = new List<AdaptiveAction>()
{
new AdaptiveSubmitAction()
{
Title = "Set an alarm",
DataJson = "{ \"Type\": \"alarm\" }"
},
new AdaptiveSubmitAction()
{
Title = "Play a game",
DataJson = "{ \"Type\": \"game\" }"
}
}
};
Attachment attachment = new Attachment()
{
ContentType = AdaptiveCard.ContentType,
Content = aCard
};
var reply = context.MakeMessage();
reply.Attachments.Add(attachment);
await context.PostAsync(reply, CancellationToken.None);
context.Wait(MessageReceivedAsync);
}
private async Task ResumeAfterAlarmDialog(IDialogContext context, IAwaitable<object> result)
{
await context.PostAsync($"You are finish the alarm dialog");
context.Wait(this.MessageReceivedAsync);
}
}
}
Thank you.

Answer 1

cannot use a method group as an argument to a dynamically dispatched operation.Did you intend to invoke the method?
the parameter value used in context.Forward is a dynamic type, which raised this issue.
Please try following code:
await context.Forward(new TestDialog(), ResumeAfterAlarmDialog, (object)value, CancellationToken.None);