WPF组合框字体绑定FileFormatException

Question

我有一个WPF组合框被结合到

Me.fontComboFast.ItemsSource = Fonts.SystemFontFamilies 


<ComboBox x:Name="fontComboFast"> 
    <ComboBox.ItemsPanel> 
     <ItemsPanelTemplate> 
      <VirtualizingStackPanel /> 
     </ItemsPanelTemplate> 
    </ComboBox.ItemsPanel> 
    <ComboBox.ItemTemplate> 
     <DataTemplate> 
      <TextBlock Text="{Binding}" FontFamily="{Binding}" FontSize="15" Height="20"/> 
     </DataTemplate> 
    </ComboBox.ItemTemplate> 
</ComboBox> 

出现以下异常。如何清除任何无效字体的Fonts.SystemFontFamilies？

'file：/// C：/ Program Files（x86）/ Common Files/Adob​​e/SING/AssocCache/Generic.otf'文件不符合预期的文件格式规范。

Answer 1

好了，下面的示例帮助Sample Font Chooser

下面的代码也排除了非可用在我的处境符号字体：

Friend Function IsSymbolFont(ByVal FontFamily As FontFamily) As Boolean 
    For Each typeface As Typeface In FontFamily.GetTypefaces() 
     Dim Face As New GlyphTypeface 

     Try 
      If typeface.TryGetGlyphTypeface(Face) Then 
       Return Face.Symbol 
      End If 
     Catch e As Exception 
      Return True 
     End Try 

    Next 
    Return False 
End Function