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Editorial Team
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Asked: 2026-05-23T02:39:20+00:00

I want to convert a numeric value to a string, displaying culture-specific digits. For

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I want to convert a numeric value to a string, displaying culture-specific digits. For example, the Dari language used in Afghanistan (culture name “prs-AF”) uses Eastern-Arabic numerals instead of the Arabic numerals used in most Western cultures (0,1,2,3,4,5,6,7,8,9).

When examining the CultureInfo class built into the Framework, it lists the correct native digits (screenshot taken from output in LinqPad):

linqpad output

CultureInfo.CreateSpecificCulture("prs-AF").NumberFormat.NativeDigits

However, when trying to convert a number to a string to display in that culture, I am not getting the native digits:

linqpad output

var number = 123.5;
var culture = CultureInfo.CreateSpecificCulture("prs-AF");
Thread.CurrentThread.CurrentUICulture = culture;
Thread.CurrentThread.CurrentCulture = culture;
var text = number.ToString(culture);
Console.WriteLine(text);

Can anyone tell me how to display the native digits?

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1 Answer

  1. Editorial Team

    Digit substitution is something that takes place when you display text that contain digits.

    It is not supposed to change the string representation of a number, as you’ve seen.

    The number 123.5 is formatted as the string 123.5 no matter digit substitution. It is, however, displayed with the appropriate glyphs if Thread.CurrentThread.CurrentCulture is set accordingly and if the presentation engine supports digit substitution. (WPF do support it)

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