Let me address your comments directly:
1 - You can programmatically hide the SuggestionView by setting the following:
2 - You cannot yet programmatically create Tokens
You could add Tokens to the tokens collection, but the UI will not be updated. The dev team considered exposing the Token collection as an ObservableCollection but declined it, see this feedback item
for the explanation from the dev team.
, they did approve creating an approach that lets you add Tokens programmatically, see this feedback item to upvote and follow it
. At this time, if you need programmatic editing of the AutoComplete's Text, then you'll be restricted to Text mode instead of Tokens mode.
I hope I was able to answer your questions.
Lance | Tech Support Engineer, Sr.
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