wpf: System.FormatException: 'Unexpected token

.NET Core Version: 3
Windows version: 18362.499
Does the bug reproduce also in WPF for .NET Framework 4.8?: Yes

Problem description: i want to create geometry with geometry.Parse(mystring); but i get following error

System.FormatException: 'Unexpected token

after some research i found that i can fix problem with this code in app.cs

Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;

now i have another problem and some of my controls like datepicker not work and get exception

About this issue

Original URL
State: closed
Created 5 years ago
Comments: 18 (6 by maintainers)

Most upvoted comments

Okay, I had a look at the code, and it is a bit more complicated. As @weltkante said, .ToString(CultureInfo.InvariantCulture) has no effect on strings, so you don’t need to add that to string variables. However, the double values in arr will actually always by integer numbers, because it’s split in a bit crazy manner in the geometry animation:

https://github.com/ghost1372/HandyControls/blob/8afaf3f921be9990e8014038f4064c5a900807c6/src/Shared/HandyControl_Shared/Media/Animation/GeometryAnimationUsingKeyFrames.cs#L30

We assumed the decimal separators are coming from the double values, but in fact they are in the string values.

For some reason which I can see might be a bit controversial yet consistent with the framework, Geometry.ToString() uses current culture to format the string (so it cannot be directly passed to the Parse method). In the light of the above, my previous advice does nothing to mitigate the problem, my apologies. The fix of the formatting problem you are having is to edit the above line to read _keyFrames[0].Value.ToString(CultureInfo.InvariantCulture).

Note that I get an IndexOutOfRangeException anyway but that I guess is something for you to work on.

miloush on Oct 30, 2019