我有一个样式列表框。列表框项目在悬停时和选中时会更改颜色。悬停并选择正常工作。但是当选择一个项目然后将鼠标移开然后将其悬停在它上面会导致它返回到悬停/未选定状态,即使它仍处于选中状态。如何将listboxitem保持在“选定的”可视状态?
<Style x:Name="myListBoxItemStyle" TargetType="ListBoxItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBoxItem">
<Border x:Name="myBorder" CornerRadius="5" BorderThickness="3" Background="#FF292121" Margin="0">
<Grid HorizontalAlignment="Stretch">
<ContentPresenter Content="{TemplateBinding Content}" Margin="5,0,5,0" />
</Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="MouseOver">
<Storyboard>
<ColorAnimation Storyboard.TargetName="myBorder" Storyboard.TargetProperty="(Background).(SolidBrush.Color)" Duration="00:00:00.2" To="#FF949290" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled"/>
</VisualStateGroup>
<VisualStateGroup x:Name="SelectionStates">
<VisualState x:Name="Unselected" />
<VisualState x:Name="Selected">
<Storyboard>
<ColorAnimation Storyboard.TargetName="myBorder" Storyboard.TargetProperty="(Background).(SolidBrush.Color)" Duration="00:00:00.2" To="#FF949290" />
</Storyboard>
</VisualState>
<VisualState x:Name="SelectedUnfocused"/>
</VisualStateGroup>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="myListBoxStyle" TargetType="ListBox">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Margin" Value="0"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="ItemContainerStyle" Value="{StaticResource myListBoxItemStyle}"/>
<Setter Property="VerticalAlignment" Value="Bottom"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBox">
<Grid Margin="0">
<ItemsPresenter />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
</Style>
<ListBox Name="theControl" Style="{StaticResource myListBoxStyle}" />
答案 0 :(得分:8)
发生了什么事情,来自不同州群的你的州(选定和移民)竞争同一财产(myBorders的背景)。您将不得不添加另一个元素(可能是矩形)并在其中一个状态中更改元素背景。
通常,您不应该从不同状态组中的状态操纵同一元素的相同属性。可视状态管理器不知道如何处理这种情况,因为它不知道哪个状态应该优先。