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Madi Feldman
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How to create a boolean to integer in a mobile app for use in an expression
Question
Mobile
Beginner
Application Type
Mobile

I am trying to create a mathematical expression using range slider values and checkboxes. I know that the checkboxes are in boolean and cannot be used in an expression until converted to an integer, so I am trying to figure out how to get a checkbox to return an integer value (1 or 0) so that it will allow the variable to be used in an expression. I am extremely new to outsystems and am using it for a senior design project.

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on 4th Mar
João Marques
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MVP

Hi Madi,


You can have a variable of type integer and use an assign to set it to 1 if boolean is true, and false otherwise, like in the image below:


Kind Regards,
João

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on 4th Mar

When I try to do this, it tells me that my data type needs to be in boolean which the variable I am using is.

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on 4th Mar
João Marques
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MVP

Replying to Madi Feldman's comment on 04 Mar 2021 19:39:39

Can you show a screenshot of the BooleanVar properties, including the data type?

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on 4th Mar

Hi Madi, 

In addition to João answer, there is a Built-in Function you can use in expressions under the Data Conversion category. You can use it straightforward to achieve what you want to do without using auxiliary variables.

Best regards, 

Víctor

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on 4th Mar

I have been trying to use this function but I get an error every time I try to use it. Is there a specific place I need to be using it? The error I get will say the rest of my expression will not work, or that the data type is not boolean when it is.

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on 4th Mar

Replying to Madi Feldman's comment on 04 Mar 2021 19:36:04

If you share some screenshots it would be easier to help you

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on 4th Mar

Screenshots

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on 4th Mar

Where are you tring to use the function with your boolen? Can you open the expression editor? It's what I'm showing in my screenshot.

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on 5th Mar

Hi.

Can you be more specific with the use case?

And It's important you share the error that appears.

Regards

Gonçalo Almeida

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on 5th Mar
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