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Type of issue
Code doesn't work
Description
In "How to: Display milliseconds in date and time values", the example inserts a milliseconds format specifier into the format string by searching for the "(:ss|:s)" regular expression in DateTimeFormatInfo.FullDateTimePattern:
In some cultures however, DateTimeFormatInfo.FullDateTimePattern does not contain any colons and the regex thus won't match. The sample code won't display any milliseconds in those cultures. With .NET 8.0.1 on Windows, those cultures are:
| Name | EnglishName | FullDateTimePattern | LongTimePattern |
|---|---|---|---|
| as-IN | Assamese (India) | dddd, d MMMM, yyyy tt h.mm.ss | tt h.mm.ss |
| da-DK | Danish (Denmark) | dddd 'den' d. MMMM yyyy HH.mm.ss | HH.mm.ss |
| da-GL | Danish (Greenland) | dddd 'den' d. MMMM yyyy HH.mm.ss | HH.mm.ss |
| en-DK | English (Denmark) | dddd, d MMMM yyyy HH.mm.ss | HH.mm.ss |
| en-FI | English (Finland) | dddd, d MMMM yyyy H.mm.ss | H.mm.ss |
| fi-FI | Finnish (Finland) | dddd d. MMMM yyyy H.mm.ss | H.mm.ss |
| fr-CA | French (Canada) | dddd d MMMM yyyy HH 'h' mm 'min' ss 's' | HH 'h' mm 'min' ss 's' |
| id-ID | Indonesian (Indonesia) | dddd, dd MMMM yyyy HH.mm.ss | HH.mm.ss |
| kl-GL | Kalaallisut (Greenland) | yyyy MMMM d, dddd HH.mm.ss | HH.mm.ss |
| si-LK | Sinhala (Sri Lanka) | yyyy MMMM d, dddd HH.mm.ss | HH.mm.ss |
| smn-FI | Inari Sami (Finland) | dddd, MMMM d. yyyy H.mm.ss | H.mm.ss |
This caused bug dotnet/aspire#3127 in the .NET Aspire dashboard.
Please correct the example so that it detects the seconds format specifier in these cultures too.
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- ID: 2691d246-9d0a-5714-a3a3-19aabfb3c5cd
- Service: dotnet-fundamentals
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