删除Listbox周围的额外空间

Question

我的Listbox有一些额外的空间。这是1像素宽，但我不知道它从何而来......

我设置填充，保证金以及两者的了borderThickness，列表框和一个ListBoxItem 0

这是XAML：

<!-- NOTEBOX LISTBOX --> 

<!-- The Datatemplate for the Notebox - ListboxItem --> 
<DataTemplate x:Key="NoteListboxItemTemplate" DataType="ListBoxItem"> 
    <Border Style="{DynamicResource OuterNoteBoxBorder}"> 
     <Border Style="{DynamicResource SecondOuterNoteBoxBorder}"> 
      <StackPanel> 
       <TextBlock Grid.Column="0" Foreground="#225588" Text="{Binding Title}" Style="{DynamicResource PlayListListBoxTitleLabel}" TextTrimming="CharacterEllipsis" TextWrapping="NoWrap" ></TextBlock> 
       <ContentPresenter Content="{Binding NoteView}"></ContentPresenter> 
       <TextBlock Grid.Column="1" Foreground="Black" Text="{local:CultureAwareBinding CreationDate, StringFormat={}{0:F}}" Style="{DynamicResource PlayListListBoxTitleLabel}"></TextBlock> 
      </StackPanel> 
     </Border> 
    </Border> 
</DataTemplate> 

<!-- The Itemtemplate for the Notebox - ListboxItem --> 
<Style x:Key="NoteboxListItemTemplate" TargetType="{x:Type ListBoxItem}"> 
    <Setter Property="Margin" Value="0" /> 
    <Setter Property="Padding" Value="0" /> 
    <Setter Property="Foreground" Value="Black" /> 
    <Setter Property="Background" Value="White" /> 
    <Setter Property="BorderThickness" Value="0" /> 
    <Setter Property="Template"> 
     <Setter.Value> 
      <ControlTemplate TargetType="{x:Type ListBoxItem}"> 
       <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/> 
       <ControlTemplate.Triggers> 
        <Trigger Property="IsSelected" Value="true"> 
         <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/> 
         <!--<Setter Property="Background" TargetName="Bd" Value="#66000000"/> 
         <Setter Property="BorderBrush" Value="#000000" />--> 
        </Trigger> 
        <MultiTrigger> 
         <MultiTrigger.Conditions> 
          <Condition Property="IsSelected" Value="true"/> 
          <Condition Property="Selector.IsSelectionActive" Value="false"/> 
         </MultiTrigger.Conditions> 
         <!--<Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>--> 
         <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/> 
        </MultiTrigger> 
        <Trigger Property="IsEnabled" Value="false"> 
         <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/> 
        </Trigger> 
       </ControlTemplate.Triggers> 
      </ControlTemplate> 
     </Setter.Value> 
    </Setter> 
    <Style.Resources> 
     <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="#88000000"/> 
     <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="Transparent"/> 
    </Style.Resources> 
</Style> 

<!-- The Border-Template for our Notebox - ListboxItem --> 
<Style x:Key="NoteboxListItemBorderTemplate" TargetType="{x:Type Border}"> 
    <Setter Property="Background" Value="#CCFFFFFF" /> 
    <Setter Property="Margin" Value="0" /> 
    <Setter Property="Padding" Value="0" /> 
    <Style.Resources> 
     <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="#88000000"/> 
     <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="#44000000"/> 
    </Style.Resources> 
</Style> 

<!-- Notebox - Listbox Template --> 
<Style x:Key="NoteboxListboxTemplate" TargetType="{x:Type ListBox}"> 
    <Setter Property="Background" Value="Transparent" /> 
    <Setter Property="BorderBrush" Value="Transparent" /> 
    <Setter Property="BorderThickness" Value="0" /> 
    <Setter Property="Padding" Value="0" /> 
    <Setter Property="Margin" Value="0" /> 
</Style> 


     <ListBox Grid.Column="1" 
      Grid.Row="0" 
      Background="Black" 
      MouseDoubleClick="ListBox_MouseDoubleClick" 
      HorizontalContentAlignment="Stretch" 
      ScrollViewer.HorizontalScrollBarVisibility="Disabled" 
      ItemContainerStyle="{DynamicResource NoteboxListItemTemplate}" 
      VirtualizingStackPanel.VirtualizationMode="Recycling" 
      VirtualizingStackPanel.IsVirtualizing="True" 
      ItemsSource="{Binding Notes, Mode=TwoWay}" 
      ItemTemplate="{DynamicResource NoteListboxItemTemplate}" 
      SelectedItem="{Binding SelectedNote}" 
      Style="{DynamicResource NoteboxListboxTemplate}"> 
    </ListBox> 

我在想什么？

Answer 1

一个列表框的控件模板看起来是这样的：

<ControlTemplate TargetType="{x:Type ListBox}"> 
    <Border Name="Bd" 
      Background="{TemplateBinding Background}" 
      BorderBrush="{TemplateBinding BorderBrush}" 
      BorderThickness="{TemplateBinding BorderThickness}" 
      SnapsToDevicePixels="true" 
      Padding="1"> <!-- This might be the problem --> 
    <!-- ... --> 

Answer 2

这是列表框的默认控件模板：

<ControlTemplate x:Key="ListBoxControlTemplate1" TargetType="{x:Type ListBox}"> 
     <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="1" SnapsToDevicePixels="True"> 
      <ScrollViewer Focusable="False" Padding="{TemplateBinding Padding}"> 
       <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/> 
      </ScrollViewer> 
     </Border> 
     <ControlTemplate.Triggers> 
      <Trigger Property="IsEnabled" Value="False"> 
       <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/> 
      </Trigger> 
      <Trigger Property="IsGrouping" Value="True"> 
       <Setter Property="ScrollViewer.CanContentScroll" Value="False"/> 
      </Trigger> 
     </ControlTemplate.Triggers> 
    </ControlTemplate> 

通知上边框的填充=“1”命名屋宇署。由于这是编码，而不是模板绑定，您可以重新设置ListBox并将填充设置为0，或者由于ScollViewer上的填充具有TemplateBinding到ListBox的填充，您可以将ListBox上的填充设置为-1抵消边界上的填充。