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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Format real number as ...
Microsoft Dynamics AX (Archived)

Format real number as a string without trailing zeros

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Posted on by cjohnson300 213

Hi

How can I best convert a real number such as 16.00000000000000 into a string "16"?

I can use num2str but that doesnt remove the zeros.  And I can loop through the string and remove the zeros and then remove the decimal point as well, but wondered if there was a more elegant solution?

Thanks in advance

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  • Martin Dráb Profile Picture
    Martin Dráb 237,965 Most Valuable Professional on at

    Setting the third argument of num2str() should do the trick.

    You could also convert the real number to int and use int2str().

  • cjohnson300 Profile Picture
    cjohnson300 213 on at

    Thanks Martin

    And if the "real" was 16.1250000000000000, would your solutions still hold?  I would like to see 16.125

  • Martin Dráb Profile Picture
    Martin Dráb 237,965 Most Valuable Professional on at

    In that case, num2str() is exactly what you need For example: num2Str(16.1250000000000000, -1, -1, -1, -1).

  • cjohnson300 Profile Picture
    cjohnson300 213 on at

    What do the -1s indicate?!  It's not in the Microsoft TechNet definition!  And I just tried it and it returned 15.00 for 15.000000000000000

  • Verified answer
    Martin Dráb Profile Picture
    Martin Dráb 237,965 Most Valuable Professional on at

    Oh, sorry, now I see I didn't give you the right answer.

    I would do this:

    str s = System.String::Format("{0:G29}", number);

    It returns 15 and 16.125 in your two cases (I've tested it in D365FO).

    By the way, -1 in num2str() means using defaults.

  • cjohnson300 Profile Picture
    cjohnson300 213 on at

    perfect - thank you!

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