Hi @annonnon ,
As an example, in my case the value of the choice field is called DataCardValue2
in the form.
I applied below formula to the Default property of "Start Time" field:
If(DataCardValue2.Selected.Value="Choice 1", "00:00", (If(DataCardValue2.Selected.Value="Choice 2", "06:00", (If(DataCardValue2.Selected.Value="Choice 3", "08:00", If(DataCardValue2.Selected.Value="Choice 4", "10:00", If(DataCardValue2.Selected.Value="Choice 5", "12:00", Parent.Default)))))))
Take a look at the result:
You can refer to my steps and formula.
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