I need to click this button to change a value of 5 randomly selected rows. The formula in the screenshot can be entered without error, but when I click the button, either nothing happens or I get a “reading” error message. What am I doing wrong?
Hi @Ross_Chehayeb1 
!
I think there’s just a condition missing in the Custom Filter of your button
(As in the Custom Filter you used Table.RandomSample(5) which is then compared to nothing)
The Custom Filter could be something like (See button “Random 1” in the sample below) :
CurrentValue.Contains(Table.RandomSample(5))
CurrentValue represents here each row from your table which will then be compared to whatever rows RandomSample() is currently returning …
In other words, this will tell to the Custom Filter to keep only the rows containing the 5 random rows RandomSample() is returning and then modify the checkbox for those rows
You could have also used a complete Action Formula instead such as this one :
(See button “Random 2”)
Table.RandomSample(5).ModifyRows(
Table.[Column 2],True()
)
… Which I just find easier as there’s no need for the filter
(Table.RandomSample(5) already returns a list of 5 rows which ModifyRows() can use and do what it needs to do )
Hope this helps !
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The second option worked! Thank you so much.
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