Power Fx function
Complete A–Z reference
CountA
Counts non-empty entries.
What it does
The job: Every function, signal, and operator entry in the canvas-apps reference.
How to use CountA
Start from the task, not the alphabet. If you are shaping rows for a gallery, reach for CountA alongside the other data functions in its group; if you are saving, navigating, or changing state, use it on an event such as a button OnSelect rather than in a display property. When a formula misbehaves, check for a blank value where you expected text, then confirm the behavior against the examples in the Power Fx function reference hub.
New to the language itself? Read What Is Microsoft Power Fx? first, then come back here when you need this specific tool.
Related functions
CalendarCalendar info for the current locale.CharTurns a character code into text.ChoicesAllowed values of a choice column.ClearEmpties a collection.ClearCollectEmpties a collection, then fills it.ClearDataWipes saved local data.ClockClock info for the current locale.CoalesceFirst non-blank value wins.