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Extract number from string

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Posted on by Marini83

Say I have a string P001 in a Context variable, how can I get the number 001 and assign it back to that context variable?

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Building Power Apps

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timl 37,287 Super User 2026 Season 2 on at

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Hi @Marini83

Just to clarify, will your input value always be in the format - 1 alpha character followed by 3 numbers? Or will the preceding number of characters before the number variable?
Community Power Pla... Microsoft Employee on at

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Hi,

If the syntax is always PXXX, you can do like that :
Set(VAR, Value(Right(YourString,3)))

Best regards,

Louis
Marini83 22 on at

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Presumably yes , It should be in that format.
Community Power Pla... Microsoft Employee on at

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@Marini83,

Then you can process as I explained, and put the code in the OnSelect property of a Button, for example.

BR,

Louis
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v-xida-msft Microsoft Employee on at

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Hi @Marini83 ,

Do you want to extract the Number value from a Text string?

Based on the needs that you mentioned, I think the Substitute function could achieve your needs. I have made a test on my side, please take a try with the following workaround:

Set the OnSelect property of the "Initialize" button to following:

UpdateContext({ContextVar1: "P001"})

Set the OnSelect proeprty of the "Extract Number" button to following:

UpdateContext({ContextVar1: Substitute(ContextVar1, "P","")}) /* <-- On your side, you should take a try with this formula to achieve your needs */

Set the Text property of the Label to following:

"Current Context Variable value: " & ContextVar1

Please check the following GIF screenshot for more details:

Best regards,
yashag2255 24,769 Super User 2024 Season 1 on at

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Assuming that the context variable is set to value as:

UpdateContext({VariableName:"P001"});

Can you try to use below expression to get only the number after the first Character? This first character could be anything, not just "P".
UpdateContext({VariableName: Mid(VariableName,2)})

Hope this Helps!

If this reply has answered your question or solved your issue, please mark this question as answered. Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up. THANKS!

@Marini83