Uncheck a box when checked one checkbox

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Posted on by KrishR

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Hello Everyone,

I have two Checkboxes, CheckBoxA and CheckBoxB. Would like to to have them unchecked on the app load.

If CheckBoxB is checked and then CheckBoxA is checked it should uncheck CheckBoxB.

If CheckBoxA is checked and then CheckBoxB is checked it should uncheck CheckBoxA.

Can anyone please help me?

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Building Power Apps

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Shaheer Ahmad 2,194 Moderator on at

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You can use the following formula for the OnChange property of both CheckBoxA and CheckBoxB:
For CheckBoxA:

If(CheckBoxA.Value, Set(CheckBoxB, false))

For CheckBoxB:

If(CheckBoxB.Value, Set(CheckBoxA, false))

Make sure to replace CheckBoxA and CheckBoxB with the actual names of your checkboxes in the formulas.

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KrishR 433 on at

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Hi @ShaheerAhmad ,

Thanks for your help. It is OnCheck or OnChange? I don't find on change property on the check box.

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KrishR 433 on at

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@ShaheerAhmad ,

FYI

I'm using modern control checkbox.

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Shaheer Ahmad 2,194 Moderator on at

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You can do the same on "OnCheck" Property.

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KrishR 433 on at

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@ShaheerAhmad ,

Tried the formulae, it doesn't allow ".Value" and doesn't allow set action too. Says "Formulae contains controls where Ident is expected".

Another thing forgot to mention, I had these 2 check. boxes inside an control converted from drop down to checkboxes.

Hope this helps.

Thank you so much again

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Shaheer Ahmad 2,194 Moderator on at

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Checkbox 1 Properties:
Checkbox 2 Properties:

Mark as solution if this solves your issue

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DDPR14 12 on at

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Hi Hope this Helps!

'OnChange' Property of CheckBoxA
Default: false OnChange: If( CheckBoxA.Value, Set(CheckBoxB, false) )

'OnChange' Property of CheckBoxB
Default: false OnChange: If( CheckBoxB.Value, Set(CheckBoxA, false) )

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KrishR 433 on at

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@ShaheerAhmad ,

Thank you so much! That did work.

Another couple questions, how do we set both the check box values to false (Uncheck on form load) also I clicked on checked box and it deselects and selects other check box.

I'm trying to establish a requirement where a user can uncheck both of them if they don't want to answer.

Thank you so much!

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Shaheer Ahmad 2,194 Moderator on at

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Just remove the code from onUnCheck property of both controls and i hope it should perform the way you want it.

Mark as solution and give thumbs up if this helps

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