ScrollViewer中的網格不會水平滾動

Question

我想我在這里缺少一些簡單的東西……如何在ScrollViewer獲得一個Grid來水平滾動？ 我啟用了HorizontalScrollMode ，並且內容肯定足夠長，可以在屏幕上運行，但不會滾動。 這是令人討厭的代碼（此ScrollViewer是LayoutRoot Grid的一行的唯一內容）：

<ScrollViewer Grid.Row="1" VerticalScrollMode="Disabled"
              VerticalScrollBarVisibility="Hidden"
              HorizontalScrollMode="Enabled">
    <Grid Margin="120,0,0,100">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="240"/>
            <ColumnDefinition Width="20"/>
            <ColumnDefinition Width="240"/>
            <ColumnDefinition Width="20"/>
            <ColumnDefinition Width="240"/>
            <ColumnDefinition Width="20"/>
            <ColumnDefinition Width="240"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <TextBlock Text="Download" HorizontalAlignment="Center" Margin="0,0,0,10"/>
        <local:BandwidthMeter Grid.Row="1" x:Name="PolicyDown" Grid.Column="0"/>
        <TextBlock Grid.Column="2" Text="Upload" HorizontalAlignment="Center"/>
        <local:BandwidthMeter Grid.Row="1" x:Name="PolicyUp" Grid.Column="2"/>
        <TextBlock Grid.Column="4" Text="Download" HorizontalAlignment="Center"/>
        <local:BandwidthMeter x:Name="ActualDown" Grid.Row="1" Grid.Column="4"/>
        <TextBlock Grid.Column="6" Text="Upload" HorizontalAlignment="Center"/>
        <local:BandwidthMeter x:Name="ActualUp" Grid.Row="1" Grid.Column="6" />
        <TextBlock Grid.Column="7" Text="Campus-wide bandwidth usage" HorizontalAlignment="Center"/>
        <Image Grid.Column="7" Grid.Row="1" Margin="80,0,0,0" Source="[image URL]" Stretch="UniformToFill"/>
    </Grid>
</ScrollViewer>

Answer 1

將屬性HorizontalScrollBarVisibility="Auto"到ScrollViewer 。