Error in South Africa Regional Settings in Windows Server 2012 and Windows 8

Question

Please note that the format for numbers in South Africa regional settings is incorrect. I discovered this through on of our products that would not work on Server 2012, but works from XP to Windows 7.
Where the decimal was always a point it has now been changed to a comma, which is incorrect and most likely will cause a lot of issues for customers in south africa that use decimal data.
I can already see spatial data breaking where decimals are used and stored with points and not commas.
To reproduce this error set your regional settings to South Africa and execute the following code in C#
System.Convert.ToDouble("10.1234");
This will throw a FormatException. Change regional settings from a , to a . and there we go it works.

Answer 1

It seems that this is development related issue, please try to submit a new post in DEV forum. Thanks.
Thanks
Zero
Respectfully Mr. Xia, it looks like the OP is reporting a localization issue, not a development issue.
For the OP, there's a
well researched post by a South African developer describing that the decimal comma is the correct choice.  The work cites University style guides, International conference agreements, and government legislation and regulation.
An excerpt from Mr. MacLean's post, quoting work from EEPublishers:
English-speaking countries (plus China, India and Japan) use the decimal point. There seems to be a general tendency to formally declare its use worldwide and the International Organisation for Standardization, ISO, also tends towards using the decimal point
over the decimal comma. In view
of the South African law, however, the comma shall still be employed in South Africa as “the only recognised decimal indicator for all numbers” [3].
References
[1] DR Hendrikz: South African Units of Length and Area, Department of Lands, Trigonometrical Survey, Special Publication No. 2, 1944.
[2] Measuring Units and National Measuring Standards Act, 1973 (Act No. 76 of 1973), Government Gazette No. 4326, 5 July 1974.
[3] The International Metric System (SI), Guide to the use of the SI in South Africa, The Council of the South African Bureau of Standards, M 33a, 1992
[4] Measurement Units and Measurement Standards Act, 2006 (Act No. 18 of 2006), Government Gazette No. 29752, 28 March 2007.
[5] T Zakiewicz: “Units of Length Measure & Geodetic Standards at the Cape, 1813-1912”, History of Surveying and Land Tenure, Collected Papers,
Vol. 2, The Institute of Professional Land Surveyors & Geomaticians of the Western Cape, May 2004.