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Command Bar Visibility

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Posted on by JJ-27101724-0

I need to hide a command bar button when related records exist. For example, one parent cash flow can have multiple child cash flows. If a parent cash flow has at least one child cash flow, the button should be hidden.

this is a command bar on a model driven app MAIN FORM trying to use the Powerfx formula to hide the visibility.

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WarrenBelz 154,799 Most Valuable Professional on at

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Hi @JJ-27101724-0,

What command button are you referring to - a screenshot would be very helpful here.

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JJ-27101724-0 15 on at

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@WarrenBelz , here is more context . I have a command bar that creates related records but i need to hide the button once the related records are created.

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WarrenBelz 154,799 Most Valuable Professional on at

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Hi @JJ-27101724-0,

It is good to post more detail on initial posts (I see you have now updated it) as it may (and has in this case) affect who may respond. I do not use MDAs, so will leave this for someone who does to try to help you.

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stum 144 on at

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Hi,

I don't know how is your parent-child relationship setup but you can use this.

CountRows( Self.Selected.Item.'Child Cash Flows' // Use the relationship name (1:N navigation property) ) = 0

Replace 'Child Cash Flows' with the exact relationship name. This directly accesses the related records collection on the current record (Self.Selected.Item).

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Kalathiya 1,690 Super User 2026 Season 1 on at

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Hello @JJ-27101724-0,

You can do this using the modern command bar (Power Fx) on the Main Form of Parent table.

IsEmpty( Filter( Courses, Professor.Professor = Self.Selected.Item.Professor ) )

Note:

Please replace the table and column names with your table.

In the example above, Courses is the child table. The child table contains a Professor lookup column, and this Power Fx formula is implemented on the Professor main form, which is the parent table.

Output:

No courses added then i can see "NewCommand" button.

📩 Need more help? Mention@Kalathiya anytime!
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