Bound Text Label & Auto Wrap Text

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Posted on by Francisco77

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Hi Community,

1) I have a box with a drop-down list that returns different texts. How can I make a text input box display a value depending on the text selected in the drop-down list box?.

2) The box with the drop-down list has texts of different lengths. Can it be made so that depending on the size of the text, it changes size and automatically adjusts so that it appears completely in the box?.

Thanks¡¡

Francisco

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Building Power Apps

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Mark Nanneman 993 Moderator on at

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Yes you can do these things.

Just set the default value of the text field to the selected value of the dropdown or combobox.

If you want to perform calculations on the fontsize, you can use the Len() function perhaps--but it might not be worth the trouble. It might make more sense to just format your text input control as multiline and make it big enough to accommodate your longest string selection.

Here I set the height of the text input to be based on formula around the length of the text value in the same control.

Min(Max(Len(Self.Value),30),100)

If the length of the text is under 30, it goes with 30. If the length of the text is over 100, it goes with 100.

Under 30

Over 30

Over 100

If this helped you, please click "Does this answer your question" and give it a like to help others in the community (+ close the ticket)!

Power Platform Developer | LinkedIn: Mark Nanneman | Blog: Power Stuff | YouTube: Mark's Power Stuff |

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SaiRT14 1,992 Super User 2025 Season 1 on at

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try the following:

Use the Switch function (or equivalent) to dynamically change the text input box value based on the drop-down selection.

Switch(
DropDown1.Selected.Value,
"Option1", "Text for Option 1",
"Option2", "Text for Option 2",
"Option3", "Text for Option 3",
"Default Text"
)

Auto-resize the drop-down list box using the TextWidth function in Power Apps or CSS/JavaScript in a web app for dynamic text length adjustment.

TextWidth(DropDown1.SelectedText.Value, TextSize) + 20

let me know if you still have issues.

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