WPF expander 控件怎么去掉焦点框。
一般的控件 FocusVisualStyle="{x:Null}" 可以去掉焦点框
但是expander 加上没有启作用，我怀疑是expander .header的焦点。
但是header没有 FocusVisualStyle这个属性。
请高手指点一下 。。。
我WFP 还是比较菜的。
[解决办法]
Focusable设置为false试试
[解决办法]
需要在expander 的样式里设置ToggleButton的FocusVisualStyle=="{x:Null}" 直接对expander 设置FocusVisualStyle确实不能改变折叠按钮的FocusVisualStyle
[解决办法]
<Style TargetType="{x:Type Expander}"> <Setter Property="Background" Value="Transparent"/> <Setter Property="Foreground" Value="{StaticResource ButtonFontColor}"/> <Setter Property="FontWeight" Value="Bold"/> <Setter Property="Padding" Value="4"/> <Setter Property="HorizontalContentAlignment" Value="Stretch"/> <Setter Property="VerticalContentAlignment" Value="Stretch"/> <Setter Property="BorderBrush" Value="Transparent"/> <Setter Property="BorderThickness" Value="1"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Expander}"> <Border SnapsToDevicePixels="true" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,1,1,1" CornerRadius="3"> <Grid> <DockPanel> <ToggleButton [color=#FF0000]Focusable="False"[/color] FontFamily="{TemplateBinding FontFamily}" FontSize="{TemplateBinding FontSize}" FontStretch="{TemplateBinding FontStretch}" FontStyle="{TemplateBinding FontStyle}" FontWeight="{TemplateBinding FontWeight}" Foreground="{TemplateBinding Foreground}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" FocusVisualStyle="{StaticResource ExpanderHeaderFocusVisual}" Margin="1,1,1,0" MinHeight="0" MinWidth="0" x:Name="HeaderSite" Style="{StaticResource ExpanderDownHeaderStyle}" Content="{TemplateBinding Header}" ContentTemplate="{TemplateBinding HeaderTemplate}" ContentTemplateSelector="{TemplateBinding HeaderTemplateSelector}" IsChecked="{Binding Path=IsExpanded, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" DockPanel.Dock="Top"/> <Border x:Name="border" Grid.Column="0" Grid.Row="1" Background="#FFFFFFFF" BorderThickness="1" CornerRadius="2" Padding="0" Visibility="Collapsed"> <Border.BorderBrush> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FFABAEB3" Offset="0"/> <GradientStop Color="#FFE2E8EE" Offset="0.355"/> </LinearGradientBrush> </Border.BorderBrush> <ContentPresenter Focusable="false" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="1,1,1,1" x:Name="ExpandSite" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" DockPanel.Dock="Bottom"/> </Border> </DockPanel> <Border x:Name="DisabledVisualElement" IsHitTestVisible="false" Background="#A5FFFFFF" Opacity="0"/> <Border x:Name="FocusVisualElement" IsHitTestVisible="false" BorderBrush="#00FFFFFF" BorderThickness="1" Visibility="Collapsed"/> </Grid> </Border> <ControlTemplate.Triggers> <Trigger Property="IsExpanded" Value="true"> <Setter Property="Visibility" TargetName="border" Value="Visible"/> </Trigger> <Trigger Property="ExpandDirection" Value="Down"/> <Trigger Property="ExpandDirection" Value="Right"> <Setter Property="DockPanel.Dock" TargetName="ExpandSite" Value="Right"/> <Setter Property="DockPanel.Dock" TargetName="HeaderSite" Value="Left"/> <Setter Property="Style" TargetName="HeaderSite" Value="{StaticResource ExpanderRightHeaderStyle}"/> </Trigger> <Trigger Property="ExpandDirection" Value="Up"> <Setter Property="DockPanel.Dock" TargetName="ExpandSite" Value="Top"/> <Setter Property="DockPanel.Dock" TargetName="HeaderSite" Value="Bottom"/> <Setter Property="Style" TargetName="HeaderSite" Value="{StaticResource ExpanderUpHeaderStyle}"/> </Trigger> <Trigger Property="ExpandDirection" Value="Left"> <Setter Property="DockPanel.Dock" TargetName="ExpandSite" Value="Left"/> <Setter Property="DockPanel.Dock" TargetName="HeaderSite" Value="Right"/> <Setter Property="Style" TargetName="HeaderSite" Value="{StaticResource ExpanderLeftHeaderStyle}"/> </Trigger> <Trigger Property="IsEnabled" Value="false"> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/> <Setter Property="Opacity" TargetName="DisabledVisualElement" Value="1"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style>