A very annoying dateformat bug

[LarsDP]

When I put the text 

Text(Date(Year(Now());Month(Now()); 1); "mmmm yyyy");

I get a perfectly working string "november 2016" as I want.

However, when I click anywhere in my project, i.e. switch the focus of the function ribbon to anything else, my function automatically gets updated to

Text(Date(Year(Now());Month(Now()); 1); "[$-nl-BE]mmmm yyyy");

with the text (translated from Dutch): "The language code nl-BE is not supported" and my formerly working string doesn't work anymore. I get an error with a blank text.

Is there an option to toggle the automatic appendation of the language code, seeing as this is sabotaging my work


EDIT: here is the bug in action

[Meneghino · Accepted solution]

Hi Lars, I reproduced your error with nl-BE.  But I was able to edit manually the nl-BE to nl-NL and it gave me no error.

To see the list of supported languages, you can use this suggestion:

"To see the list of supported language tags, type Value( "1", ) in the formula bar or advanced view and scroll through the list of locales suggested for the second argument."

This comes from here: https://powerapps.microsoft.com/en-us/tutorials/function-language/

However on my system it still showed the name of the month in English:

[LarsDP]

Thank you very much. Changing my region from BE to NL solved this issue. Somewhat strange that the auto-appended language code  that caused an error can't be turned off, but knowing the solution steers me more in the direction to tamper some more before 'ranting'. Thank you once again!

[AndyPennell]

To get the month in Dutch, add "nl-NL" as an argument e.g.

Text(Now(), "mmmm yyyy", "nl-NL")

The [$-nl-nl] syntax is to parse the format string, which doesnt change things for dates, only numbers. To change the output locale, add an argument as shown.

[Meneghino]

Thanks @AndyPennell

I noticed this additional locale parameter a couple of days ago, and have been using it heavily since then.  It is very useful also for parsing text inputted dates in a chosen locale for the app, without worrying about the user's locale.

Thanks for continuously improving PowerApps, I can get it to do almost anything I want now when working with cloud databases.

[Panoone]

When I use the locale parameter my function is re-written.

Text(BaseSalary * 1.095, "$#,###","en-GB")

becomes

Text(BaseSalary * 1.095, "[$-en-GB]$#,###")

In addition, when I use en-GB I get a dollar sign. And when I use en-US I get a pound sign!