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説明
Description
Throw helpers introduced in https://github.com/dotnet/wpf/pull/8408 caused a behavioral regression thus some double properties no longer accept NaN as a value.
The original condition in net framework and up to net8 was value < 0, the new condition is double.IsNegative(value). The latter now causes an ArgumentOutOfRangeException. See https://github.com/dotnet/runtime/issues/92834#issuecomment-1741525749 on why these are not the same.
Reproduction Steps
// Get an existing visual
TextBox tb = ...
// Prepare some other text using the same parameters
FormattedText ft = new(...);
ft.LineHeight = tb.LineHeight;
Expected behavior
Property value is accepted
Actual behavior
ArgumentOutOfRangeException is thrown
Regression?
Yes. Works in .NET Framework and up to .NET 8
Known Workarounds
In the example above it's simple to fix as NaN is eventually treated as 0 (converted to int.MinValue here then ignored here) though this does not seem intentional.
Other properties may be more difficult to work around
Impact
No response
Configuration
No response
Other information
No response