WPF ResourceDictionary StringFormat XamlParseException

Question

我有一个定义了样式的ResourceDictionary，它有一个带有绑定StringFormat的ControlTemplate，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的世界粮食计划署屏幕时，我得到以下异常：

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)

我做了一些工作，将ResourceDictionary StringFormat从{}{0:N2}更改为N2：

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

以下是放入UserControl的工作原理：

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

我的问题是，为什么相同的StringFormat可以在UserControl中工作，而不能在ResourceDictionary中工作？我很高兴它起作用了，但我想知道为什么。

Answer 1

这是个WPF bug。

我猜您在本地开发机器上安装了.NET 4.5 (可能是因为安装了Visual Studio2012)，但没有安装在服务器上(它只安装了.NET 4)。因此，您的服务器没有微软在.NET 4.5中添加到WPF中的错误修复。