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Power Platform Community / Forums / Power Apps / Why IfError is not wor...
Power Apps
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Why IfError is not working for some fallback?

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Posted on by pNabin 249

I am trying to play with IfError function. When the fallback is not string with non numerical value, ite gives empty value.

I am not clear with the documentation: https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/function-iferror

Could you explain why the fallback in first and second is giving value but not the third? Am I missing something?

IfError( Value( "13a"), "6" ) => 6

IfError( Value( "13a"), 9 ) => 9 

IfError( Value( "13a"), "error" ) => Empty label   WHY?

 

Thank you in Advance.

 

Categories:
Building Power Apps
I have the same question (0)
  • Brian Dang Profile Picture
    Brian Dang 3,976 on at

    Hi @pNabin,

    It looks like you're trying to find out why your IfError expression is not working. You are expecting Value("13a") to be an error and falling back to your second argument.

     

    I am not getting the same results as you. All three expressions are returning a blank label for me.

     

    Value("13a") itself is blank as it doesn't extract a value from "13a."

     

    If your goal is to test if a given string has a value, there may be other ways of doing that. You might want to try IsMatch():

    Let me know if this helps.

     

    Mr. Dang

    _______

  • pNabin Profile Picture
    pNabin 249 on at

    Hi @mr-dang

    All 3 results are giving empty result for you because you haven't turned on the Formula-level error management in app settings of the app. After the settings has been changed, in my case I have to reload the app in order to reflect the new settings.

     

    Could you try this put and confirm what's be your result?

     

    - Nabin

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