35 lines
1.4 KiB
Markdown
35 lines
1.4 KiB
Markdown
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## WF serializes Expressions.Literal<T> DateTimes differently now (breaks custom XAML parsers)
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### Scope
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Edge
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### Version Introduced
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4.5
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### Source Analyzer Status
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Planned
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### Change Description
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The associated [ValueSerializer](https://msdn.microsoft.com/en-us/library/system.windows.markup.valueserializer(v=vs.110).aspx) object will convert a DateTime or DateTimeOffset object whose Second and Millisecond components are non-zero and (for a DateTime value) whose DateTime.Kind property is not Unspecified to property element syntax instead of a string. This change allows DateTime and DateTimeOffset values to be round-tripped. Custom XAML parsers that assume that input XAML is in the attribute syntax will not function correctly.
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- [ ] Quirked
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- [ ] Build-time break
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### Recommended Action
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This change allows DateTime and DateTimeOffset values to be round-tripped. Custom XAML parsers that assume that input XAML is in the attribute syntax will not function correctly.
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### Affected APIs
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* Not detectable via API analysis
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### Category
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Windows Workflow Foundation (WF)
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[More information](https://msdn.microsoft.com/en-us/library/hh367887(v=vs.110).aspx#wwf)
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<!--
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### Notes
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Will need to dig in a bit to figure out exactly what a repro for this looks like. Probably, identifying Literal<DateTime>/Literal<DateTimeOffset> usage will be sufficient to give an informational diagnostic.
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-->
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<!-- breaking change id: 36 -->
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