小编sun*_*nny的帖子

我列举了fontfamilies列表并绑定到combobox,问题是当系统中有一个字体被破坏时.整个应用程序将崩溃.任何方式我能够绑定到systemfontfamilies但能够跳过显示错误的字体？

如果itemtemplate中的fontfamily绑定被注释,则以下代码运行正常.

 <ComboBox x:Name="comboFonts"
                          Grid.IsSharedSizeScope="True"
                          Grid.Row="0" Grid.Column="1"
                          ItemsSource="{Binding Source={x:Static Member=Fonts.SystemFontFamilies}}"
                          SelectedItem="{Binding FontFamily, Mode=TwoWay}"
                          HorizontalAlignment="Stretch">
        <ComboBox.ItemTemplate>
            <DataTemplate>
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto" SharedSizeGroup="FontName"></ColumnDefinition>
                        <ColumnDefinition Width="*"></ColumnDefinition>
                    </Grid.ColumnDefinitions>
                    <TextBlock Text="{Binding Source}" HorizontalAlignment="Left"/>
                    <Label FontFamily="{Binding FallbackValue=Verdana}" HorizontalAlignment="Right">Sample</Label>
                </Grid>

            </DataTemplate>
        </ComboBox.ItemTemplate>
    </ComboBox>

获得的错误消息如下

Message=Input file or data stream does not conform to the expected file format specification.
Source=PresentationCore
StackTrace:
   at MS.Internal.Text.TextInterface.Native.Util.ConvertHresultToException(Int32 hr)
   at MS.Internal.Text.TextInterface.Font.CreateFontFace()
   at MS.Internal.Text.TextInterface.Font.AddFontFaceToCache()
   at MS.Internal.Text.TextInterface.Font.GetFontFace()

请帮忙.谢谢