WPF - FocusVisualStyle 我在哪里应用它？

发布于 2024-07-15 02:06:44 字数 1524 浏览 4 评论 0原文

我有一个 UserControl ，它基本上像这样包装了 ListBox -

        <ListBox x:Name="lb" ItemsSource="{Binding ElementName=UC,Path=Pages}"
             Background="{Binding ElementName=UC,Path=Background}"
             BorderBrush="Transparent"
             ScrollViewer.CanContentScroll="False" 
             ScrollViewer.HorizontalScrollBarVisibility="Hidden" 
             ScrollViewer.VerticalScrollBarVisibility="Disabled">

        <ListBox.ItemsPanel>
            <ItemsPanelTemplate>
                <StackPanel Orientation="Horizontal" IsItemsHost="True"/>
            </ItemsPanelTemplate>
        </ListBox.ItemsPanel>

        <ListBox.ItemTemplate>
            <DataTemplate>
                <Grid Width="{Binding ElementName=UC,Path=ActualWidth}">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition MinWidth="20"/>
                        <ColumnDefinition/>
                        <ColumnDefinition MinWidth="20"/>
                    </Grid.ColumnDefinitions>
                    <ContentPresenter Grid.Column="1" Content="{Binding}"/>
                </Grid>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

我需要将 FocusVisualStyle 设置为 {x:Null} 隐藏此功能，但无论我在哪里应用它，我仍然得到默认的蓝色选择颜色。我尝试在 ListBox、StackPanel 和 Grid 上设置它，但没有成功。

任何帮助都会很棒。谢谢。

原文

I have a UserControl which basically wraps a ListBox like this -

        <ListBox x:Name="lb" ItemsSource="{Binding ElementName=UC,Path=Pages}"
             Background="{Binding ElementName=UC,Path=Background}"
             BorderBrush="Transparent"
             ScrollViewer.CanContentScroll="False" 
             ScrollViewer.HorizontalScrollBarVisibility="Hidden" 
             ScrollViewer.VerticalScrollBarVisibility="Disabled">

        <ListBox.ItemsPanel>
            <ItemsPanelTemplate>
                <StackPanel Orientation="Horizontal" IsItemsHost="True"/>
            </ItemsPanelTemplate>
        </ListBox.ItemsPanel>

        <ListBox.ItemTemplate>
            <DataTemplate>
                <Grid Width="{Binding ElementName=UC,Path=ActualWidth}">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition MinWidth="20"/>
                        <ColumnDefinition/>
                        <ColumnDefinition MinWidth="20"/>
                    </Grid.ColumnDefinitions>
                    <ContentPresenter Grid.Column="1" Content="{Binding}"/>
                </Grid>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

I need to set the FocusVisualStyle to {x:Null} to hide this functionality but no matter where i apply it, i still get the default blue selection color. I've tried setting it on the ListBox, StackPanel and the Grid but to no avail.

Any help would be great. thanks.

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孤独难免 2024-07-22 02:06:44

FocusVisualStyle 在聚焦元素周围应用“行进的蚂蚁”，而不是背景颜色。要更改选定 ListBoxItems 的背景颜色，请执行以下操作：

<ListBox>
    <ListBox.Resources>
        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Value="Red"/>
        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" Value="Black"/>
    </ListBox.Resources>    
</ListBox>

FocusVisualStyle applies the "marching ants" around the focused element, not the background color. To change the background color of selected ListBoxItems, do something like:

<ListBox>
    <ListBox.Resources>
        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Value="Red"/>
        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" Value="Black"/>
    </ListBox.Resources>    
</ListBox>

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凉城凉梦凉人心 2024-07-22 02:06:44

Kent 是正确的，当使用 Tab 键选择控件时，FocusVisualStyle 仅与键盘焦点相关。

如果您只是尝试显示没有任何选择功能的列表，您可能只需将 ListBox 降级为 ItemsControl

<ItemsControl x:Name="lb" ItemsSource="{Binding ElementName=UC,Path=Pages}" 
  Background="{Binding ElementName=UC,Path=Background}" 
  BorderBrush="Transparent" ScrollViewer.CanContentScroll="False" 
  ScrollViewer.HorizontalScrollBarVisibility="Hidden" 
  ScrollViewer.VerticalScrollBarVisibility="Disabled">
  <ItemsControl.ItemsPanel>
        <ItemsPanelTemplate>
            <StackPanel Orientation="Horizontal" IsItemsHost="True"/>
        </ItemsPanelTemplate>
  </ItemsControl.ItemsPanel>
  <!-- others -->
</ItemsControl>

Kent is correct the FocusVisualStyle is only related to the Keyboard focus, when selected controls with the Tab Key.

If you are just trying to display a list without any Selection capabilities you may just be able to downgrade your ListBox to an ItemsControl

<ItemsControl x:Name="lb" ItemsSource="{Binding ElementName=UC,Path=Pages}" 
  Background="{Binding ElementName=UC,Path=Background}" 
  BorderBrush="Transparent" ScrollViewer.CanContentScroll="False" 
  ScrollViewer.HorizontalScrollBarVisibility="Hidden" 
  ScrollViewer.VerticalScrollBarVisibility="Disabled">
  <ItemsControl.ItemsPanel>
        <ItemsPanelTemplate>
            <StackPanel Orientation="Horizontal" IsItemsHost="True"/>
        </ItemsPanelTemplate>
  </ItemsControl.ItemsPanel>
  <!-- others -->
</ItemsControl>

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