How to Control Command Button Visibility in Model-Driven Apps Using Power Fx?
Table of Contents
Question
You create a model-driven app by using the modern app designer.
You need to add a command button to the command bar. The command button must only be visible if one or more records are selected in a grid view.
Which expression should you use to control the visibility of the command button?
Select only one answer.
A. CountRows(Self.Selected.AllItems) > 0
B. CountRows(Selected.Items) > 0
C. Count(Self.Selected.AllItems) > 0
D. Count(Selected.Items) > 0
Answer
A. CountRows(Self.Selected.AllItems) > 0
Explanation
This item tests the candidate’s knowledge of using command button function.
The correct formula is CountRows(Self.Selected.AllItems) > 0. The expression CountRows(Selected.Items) > 0 is missing the Self element. You must use CountRows and not Count to meet the requirements.
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