B4J Question NumberFormat issue or BUG?

Discussion in 'B4J Questions' started by Cableguy, Mar 16, 2016.

  1. Cableguy

    Cableguy Expert Licensed User

    I have the following code:

    mValue = NumberFormat2(TextField1.Text + StepValue, 1, mDecimals, mDecimals, False)

    where mValue is Double, StepValue and mDecimals are integers defined in the designer...

    Given a mDecimals of value 2, shouldn't this code convert a number like 1.1 to a string like "1.10"??

    I ask because all I get is the same decimal places as the mathematical value (i.e 1 + 0.1 = 1.1) , no mater how I format the number


    Seems like using NumberFormat on a variable has a different behaviour than using it directly on a string like a TextField.text, where it works perfect
    Last edited: Mar 16, 2016
  2. DonManfred

    DonManfred Expert Licensed User

    Log(NumberFormat2(1.1,1,2,2,False)) ' Logs 1.10
    Edit: ok, i tried this with B4A.

    I would guess a bug in B4J
    Cableguy likes this.
  3. Cableguy

    Cableguy Expert Licensed User

    see my Edit
  4. klaus

    klaus Expert Licensed User

    NumberFormat returns a String !
    But your variable is a Double, the only thing you may achieve is a sort of rounding, but not a display formating.
    To format a number for display you must use a String variable as the return variable and not a Double.
    Erel and Cableguy like this.
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