WPF ResourceDictionary StringFormat XamlParseException

Question

我有一个定义了 Style 的 ResourceDictionary，它有一个 ControlTemplate 和一个 Binding StringFormat，如下所示:

<TextBlock Text="{Binding TotalCash, Mode=OneWay, StringFormat={}{0:N2}, FallbackValue=0.00}" />

我在本地运行，一切正常，但我在服务器上进行了构建和安装，当我启动任何使用 ResourceDictionary 的 WFP 屏幕时，出现以下异常:

System.Windows.Markup.XamlParseException: 'Unexpected token after end of markup extension.' Line number '224' and line position '148'. ---> System.Xaml.XamlParseException: 'Unexpected token after end of markup extension.' Line number '224' and line position '148'.
   at MS.Internal.Xaml.Parser.MePullParser.<Parse>d__0.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<LogicStream_Attribute>d__6f.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_EmptyElement>d__14.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_Element>d__7.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementContent>d__4a.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementBody>d__23.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_Element>d__7.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementContent>d__4a.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementBody>d__23.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_Element>d__7.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementContent>d__4a.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementBody>d__23.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_Element>d__7.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementContent>d__4a.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementBody>d__23.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_Element>d__7.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementContent>d__4a.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementBody>d__23.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_Element>d__7.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_PropertyContent>d__5f.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_NonemptyPropertyElement>d__42.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_PropertyElement>d__35.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementBody>d__23.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_Element>d__7.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementContent>d__4a.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementBody>d__23.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_Element>d__7.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementContent>d__4a.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_ElementBody>d__23.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<P_Element>d__7.MoveNext()
   at MS.Internal.Xaml.Parser.XamlPullParser.<Parse>d__0.MoveNext()
   at MS.Internal.Xaml.NodeStreamSorter.ReadAheadToEndOfAttributes()
   at MS.Internal.Xaml.NodeStreamSorter.ReadAheadAndSortCtorProperties()
   at MS.Internal.Xaml.NodeStreamSorter.MoveNext()
   at System.Xaml.XamlXmlReader.Read()
   at System.Windows.Markup.WpfXamlLoader.TransformNodes(XamlReader xamlReader, XamlObjectWriter xamlWriter, Boolean onlyLoadOneNode, Boolean skipJournaledProperties, Boolean shouldPassLineNumberInfo, IXamlLineInfo xamlLineInfo, IXamlLineInfoConsumer xamlLineInfoConsumer, XamlContextStack`1 stack, IStyleConnector styleConnector)
   at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
   --- End of inner exception stack trace ---
   at System.Windows.Markup.XamlReader.RewrapException(Exception e, IXamlLineInfo lineInfo, Uri baseUri)
   at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
   at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
   at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
   at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)

我做了一些挖掘，并通过将 ResourceDictionary StringFormat 从 {}{0:N2} 更改为 N2 使其工作:

<TextBlock Text="{Binding TotalCash, Mode=OneWay, StringFormat=N2, FallbackValue=0.00}" />

以下工作放入了 UserControl:

<TextBlock Text="{Binding TotalCash, Mode=OneWay, StringFormat={}{0:N2}, FallbackValue=0.00}" />

我的问题是为什么相同的 StringFormat 在 UserControl 中工作而不是在 ResourceDictionary 中工作？我很高兴它正在工作，但想了解原因。

Answer 1

这是一个 WPF bug .

我猜您在开发机器上本地安装了 .NET 4.5(因为可能安装了 Visual Studio 2012)，但没有安装在您的服务器上(只有 .NET 4)。因此，您的服务器没有微软在 .NET 4.5 中添加到 WPF 的错误修正。