Is it possible to handle attachments during a LuisDialog?

Question

So far, I've been able to train a LUIS model and hook up its intents into a dialog that inherits from LuisDialog. I assumed that when whenever I sent an unrecognizable message to the model, it would be captured by the 'None' intent, and that's true for text, but not for files. When i send a picture, for instance, nothing happens, and when I send text+picture, some intent will pick it up, but there will be no picture in the message attachments.

What is the recommended way to handle files inside a LUIS dialog?

Answer 1

You can override the MessageReceived(...) function of the LuisDialog keep the fields of the message that you need as member variables (in this case the attachments) and access those fields in your intent handlers.