WP7 - LongListSelector，如何隐藏垂直滚动条

Question

我需要隐藏垂直滚动条LongListSelector。为此，我使用：

ScrollViewer.VerticalScrollBarVisibility = “隐藏”

在ListBox中它工作得很好，但在LongListSelector这是行不通的。

这是我的LongListSelector代码：

<Grid x:Name="ContentPanel" 
     Grid.Row="1" 
     Margin="12,0,12,0"> 
    <toolkit:LongListSelector x:Name="TasksLongListSelector" 
          Margin="0,12,0,0" 
          Background="Transparent" 
          ScrollViewer.VerticalScrollBarVisibility="Hidden"> 
    <toolkit:LongListSelector.GroupHeaderTemplate> 
     <DataTemplate> 
     <Border Width="431" 
       Height="53" 
       HorizontalAlignment="Left" 
       BorderThickness="2" 
       BorderBrush="White" 
       Margin="13,0,0,22"> 
      <Grid HorizontalAlignment="Stretch" 
       VerticalAlignment="Stretch"> 
      <Grid.ColumnDefinitions> 
       <ColumnDefinition Width="*" /> 
       <ColumnDefinition Width="Auto" /> 
      </Grid.ColumnDefinitions> 
      <TextBlock Text="{Binding Key, Converter={StaticResource LocalDateConverter}}" 
         FontSize="20" 
         FontWeight="Bold" 
         Foreground="White" 
         HorizontalAlignment="Left" 
         Padding="14,10,0,0" /> 
      <Image Grid.Column="1" 
        Source="/Images/CalendarWhiteIcon.png" 
        Width="21" 
        Height="21" 
        HorizontalAlignment="Right" 
        VerticalAlignment="Top" 
        Margin="0,13,14,0" /> 
      </Grid> 
     </Border> 
     </DataTemplate> 
    </toolkit:LongListSelector.GroupHeaderTemplate> 
    <toolkit:LongListSelector.ItemTemplate> 
     <DataTemplate> 
     <Button Background="White" 
       Width="455" 
       Height="105" 
       Margin="0,-12,0,12" 
       Tag="{Binding Id}" 
       HorizontalContentAlignment="Stretch" 
       VerticalContentAlignment="Stretch" 
       Click="Button_Click_1"> 
      <Grid HorizontalAlignment="Stretch" 
       VerticalAlignment="Stretch"> 
      <Grid.ColumnDefinitions> 
       <ColumnDefinition Width="Auto" /> 
       <ColumnDefinition Width="Auto" /> 
       <ColumnDefinition Width="Auto" /> 
       <ColumnDefinition Width="*" /> 
      </Grid.ColumnDefinitions> 
      <Grid.RowDefinitions> 
       <RowDefinition Height="*" /> 
       <RowDefinition Height="24" /> 
      </Grid.RowDefinitions> 
      <TextBlock Grid.ColumnSpan="4" 
         Text="{Binding Name}" 
         FontSize="24" 
         Foreground="#400000" /> 
      <Image Grid.Row="1" 
        Visibility="{Binding Project, Converter={StaticResource StringToVisibilityConverter}}" 
        Source="/Images/ProjectIcon.png" 
        Width="20" 
        Height="18" 
        HorizontalAlignment="Left" 
        VerticalAlignment="Top" 
        Margin="0,0,5,0" /> 
      <TextBlock Grid.Row="1" 
         Grid.Column="1" 
         Visibility="{Binding Project, Converter={StaticResource StringToVisibilityConverter}}" 
         Text="{Binding Project, Converter={StaticResource ToUppercaseConverter}}" 
         FontSize="16" 
         Foreground="#666666" 
         HorizontalAlignment="Left" 
         VerticalAlignment="Top" 
         Margin="0,-2,9,0" 
         LineStackingStrategy="BlockLineHeight" /> 
      <Image Grid.Row="1" 
        Grid.Column="2" 
        Visibility="{Binding Context, Converter={StaticResource StringToVisibilityConverter}}" 
        Source="/Images/ContextIcon.png" 
        Width="20" 
        Height="18" 
        HorizontalAlignment="Left" 
        VerticalAlignment="Top" 
        Margin="-3,1,1,0" /> 
      <TextBlock Grid.Row="1" 
         Grid.Column="3" 
         Visibility="{Binding Context, Converter={StaticResource StringToVisibilityConverter}}" 
         Text="{Binding Context, Converter={StaticResource ToUppercaseConverter}}" 
         FontSize="16" 
         Foreground="#666666" 
         HorizontalAlignment="Left" 
         VerticalAlignment="Top" 
         Margin="0,-2,0,0" 
         LineStackingStrategy="BlockLineHeight" /> 
      </Grid> 
     </Button> 
     </DataTemplate> 
    </toolkit:LongListSelector.ItemTemplate> 
    </toolkit:LongListSelector> 
</Grid> 

如何隐藏在LongListSelector垂直滚动条？

Answer 1

我找到了解决方案。加载LongListSelector事件加入此代码：

ScrollViewer sv = VisualTreeHelper.GetChild(VisualTreeHelper.GetChild(TasksLongListSelector, 0), 0) as ScrollViewer; 
ScrollBar sb = ((FrameworkElement)VisualTreeHelper.GetChild(sv, 0)).FindName("VerticalScrollBar") as ScrollBar; 
sb.Width = 0;