Bug 36417 - Built-in conversion of string to double values does not take current culture into account
Summary: Built-in conversion of string to double values does not take current culture ...
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 2.0.0
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: ---
Assignee: Bugzilla
: 52319 ()
Depends on:
Reported: 2015-12-01 12:38 UTC by René
Modified: 2017-03-24 17:45 UTC (History)
6 users (show)

Is this bug a regression?: ---
Last known good build:

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Description René 2015-12-01 12:38:49 UTC
This report has also been reported as an issue on Github: https://github.com/xamarin/Duplo/issues/3527

When using bindings (Entry to double property) I noticed that the current culture setting is not applied. Example on a German iPhone with German locale: entering „42,3“ results in „423“. Using „42.3“ instead works. I can now work around by using a string property (which will cause other side effects, like INPC being triggered if for instance "42" is changed to "42,") but I was wondering if this has been forgotten or is working as intended?

An example project can be seen here: https://github.com/Krumelur/XamarinForms_SliderTest/blob/master/SliderTest/TestPage.xaml#L4

Note: as mentioned this is a problem if the decimal separator is not ".", so switch iOS to German locale.

Comment from Stephane on Slack about the problem:

"I have to check the rationale, but I think the built-in conversion for bindings (ToString() and Parse()) use invariantCulture, so you can bind to/from value you get, e.g., from a json on your backend(edited) we had that discussion before, your use case is a good one."
Comment 1 Jason Smith [MSFT] 2016-04-13 20:03:25 UTC
This is expected behavior. All binding conversions assume invariant culture.
Comment 2 Jimmy [MSFT] 2017-03-24 17:45:25 UTC
*** Bug 52319 has been marked as a duplicate of this bug. ***