wrong number conversion in structs (regional format related)

Environment

Microsoft Visual Studio Community 2022 Version 17.1.6 VisualStudio.17.Release/17.1.6+32421.90 Microsoft .NET Framework Version 4.8.04084

Installed Version: Community

Visual C++ 2022 00482-90000-00000-AA052 Microsoft Visual C++ 2022

ASP.NET and Web Tools 2019 17.1.363.30963 ASP.NET and Web Tools 2019

Azure App Service Tools v3.0.0 17.1.363.30963 Azure App Service Tools v3.0.0

C# Tools 4.1.0-5.22165.10+e555772db77ca828b02b4bd547c318387f11d01f C# components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

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Microsoft Visual C++ Wizards 1.0 Microsoft Visual C++ Wizards

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Visual F# Tools 17.1.0-beta.21610.4+07b5673e4f2fa7630e78abe37f16b372353a7242 Microsoft Visual F# Tools

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Visual Studio Tools for CMake 1.0 Visual Studio Tools for CMake

.NET version

6.0

Did this work in a previous version of Visual Studio and/or previous .NET release?

It’s working in old .net framework designer.

Issue description

Can’t edit struct properties (Size, Padding etc.) directly due to wrong values separator. See video from steps to reproduce. This error will appear:

486, 421 is not a valid value for Int32. (Parameter ‘value’)

New designer value separator is comma:

Old designer value separator is semicolon:

Steps to reproduce

V.S. language is English. Windows language is English. Region and regional format in windows settings - Ru.

https://user-images.githubusercontent.com/17767561/167297112-b7228dc7-6f15-4ff2-b487-e3a995e4561e.mp4

Diagnostics

[15:40:34.4058116] Sending request: TypeConverters/ConvertFrom
[15:40:34.4068120] TypeConverters/ConvertFrom took 00:00:00.0008453.
[15:40:34.4068120] REQUEST FAILURES: TypeConverters/ConvertFrom
                   Microsoft.DotNet.DesignTools.Client.DesignToolsServerException: 486, 421 is not a valid value for Int32. (Parameter 'value') ---> Microsoft.DotNet.DesignTools.Client.DesignToolsServerException: Input string was not in a correct format.
                      --- End of inner exception stack trace ---

[RussKie]

I think I may have found the problem, investigating a possible fix.

[RussKie]

The fix is expected to be available in 17.3p2.