OK, Here is the problem. On 10 JULY 2024, my app behavior changed. There were no code changes, yet the app search feature no longer worked as designed.
The intended behavior: As the user types in the search box, the search function in the items property for a gallery would update. With each letter typed, the search would refine the contents of the gallery.
The broken behavior: As the user types in the search box, nothing happens. If the user clicks into another control on the screen, the items parameter search function fires and the gallery is updated.
The Culprit: Microsoft has added a new parameter for the text input control. The new parameter is called "TriggerOutput". For some reason, this new parameter is defaulted to "FocusOut". This FocusOut fires when the user clicks or tabs out of the text input field.
The Solution: Go to the "TriggerOutput" property for your text input control. Comment out the value //"FocusOut"
