删除禁用的TabItem上的浮雕样式

时间:2012-08-28 13:51:51

标签: c# wpf .net-4.0 tabitem

我有以下TabItem(通过说“TabItem”,我实际上是指激活Tab的按钮):

<TabItem RequestBringIntoView="activateTab_Click" Name="tabImplantation" Width="270" Height="138" BorderBrush="{x:Null}" IsEnabled="False" Foreground="#FF075C81">
    <TabItem.Header>
        <StackPanel Orientation="Horizontal">
            <Image Width="148"  Margin="-5,0,0,0" VerticalAlignment="Stretch" Name="implantation_pic" Source="/project;component/Images/implantation_a.jpg" />
        </StackPanel>
    </TabItem.Header>
    ...
</TabItem>

如您所见,它是一个定制的TabItem,其中包含Image个对象。我通过设置BorderBrush="{x:Null}"删除了边框,效果很好。

然而,如果它被禁用(IsEnabled="False"),它会呈现某种内部浮雕阴影或类似的东西(也可能是边框,我不确定)。

如果禁用此边框,如何渲染它?另见下面的图片。提前谢谢!

请注意,我不是c#专家,我只是做一些重新设计。该计划本身的开发外包。

The TabItem is enabled and renders correctly

The TabItem is disabled and renders a border

1 个答案:

答案 0 :(得分:3)

要实现您想要的外观,您必须编辑TabItem的{​​{3}}(使用Blend很容易)。

当控件被禁用时,没有“内部浮雕阴影”被渲染,它可能是边界效果。以下是ControlTemplate的编辑版本,在IsEnabled = false(将其添加到您的Window.ResourcesApplication.Resources)时禁用该边框:

<Style x:Key="TabItemFocusVisual">
        <Setter Property="Control.Template">
            <Setter.Value>
                <ControlTemplate>
                    <Rectangle Margin="3,3,3,1" SnapsToDevicePixels="true" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="1" StrokeDashArray="1 2"/>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
    <SolidColorBrush x:Key="TabControlNormalBorderBrush" Color="#8C8E94"/>
    <LinearGradientBrush x:Key="ButtonNormalBackground" EndPoint="0,1" StartPoint="0,0">
        <GradientStop Color="#F3F3F3" Offset="0"/>
        <GradientStop Color="#EBEBEB" Offset="0.5"/>
        <GradientStop Color="#DDDDDD" Offset="0.5"/>
        <GradientStop Color="#CDCDCD" Offset="1"/>
    </LinearGradientBrush>
    <LinearGradientBrush x:Key="TabItemHotBackground" EndPoint="0,1" StartPoint="0,0">
        <GradientStop Color="#EAF6FD" Offset="0.15"/>
        <GradientStop Color="#D9F0FC" Offset=".5"/>
        <GradientStop Color="#BEE6FD" Offset=".5"/>
        <GradientStop Color="#A7D9F5" Offset="1"/>
    </LinearGradientBrush>
    <SolidColorBrush x:Key="TabItemSelectedBackground" Color="#F9F9F9"/>
    <SolidColorBrush x:Key="TabItemHotBorderBrush" Color="#3C7FB1"/>
    <SolidColorBrush x:Key="TabItemDisabledBackground" Color="#F4F4F4"/>
    <SolidColorBrush x:Key="TabItemDisabledBorderBrush" Color="#FFC9C7BA"/>
    <Style TargetType="{x:Type TabItem}">
        <Setter Property="FocusVisualStyle" Value="{StaticResource TabItemFocusVisual}"/>
        <Setter Property="Foreground" Value="Black"/>
        <Setter Property="Padding" Value="6,1,6,1"/>
        <Setter Property="BorderBrush" Value="{StaticResource TabControlNormalBorderBrush}"/>
        <Setter Property="Background" Value="{StaticResource ButtonNormalBackground}"/>
        <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
        <Setter Property="VerticalContentAlignment" Value="Stretch"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type TabItem}">
                    <Grid SnapsToDevicePixels="true">
                        <!--previous (default) border brush value was BorderBrush="{TemplateBinding BorderBrush}"-->
                        <Border x:Name="Bd" BorderBrush="{x:Null}" BorderThickness="1,1,1,0" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}">
                            <ContentPresenter x:Name="Content" ContentSource="Header" HorizontalAlignment="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
                        </Border>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver" Value="true">
                            <Setter Property="Background" TargetName="Bd" Value="{StaticResource TabItemHotBackground}"/>
                        </Trigger>
                        <Trigger Property="IsSelected" Value="true">
                            <Setter Property="Panel.ZIndex" Value="1"/>
                            <Setter Property="Background" TargetName="Bd" Value="{StaticResource TabItemSelectedBackground}"/>
                        </Trigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsSelected" Value="false"/>
                                <Condition Property="IsMouseOver" Value="true"/>
                            </MultiTrigger.Conditions>
                            <Setter Property="BorderBrush" TargetName="Bd" Value="{StaticResource TabItemHotBorderBrush}"/>

                        </MultiTrigger>
                        <Trigger Property="TabStripPlacement" Value="Bottom">
                            <Setter Property="BorderThickness" TargetName="Bd" Value="1,0,1,1"/>
                        </Trigger>
                        <Trigger Property="TabStripPlacement" Value="Left">
                            <Setter Property="BorderThickness" TargetName="Bd" Value="1,1,0,1"/>
                        </Trigger>
                        <Trigger Property="TabStripPlacement" Value="Right">
                            <Setter Property="BorderThickness" TargetName="Bd" Value="0,1,1,1"/>
                        </Trigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsSelected" Value="true"/>
                                <Condition Property="TabStripPlacement" Value="Top"/>
                            </MultiTrigger.Conditions>
                            <Setter Property="Margin" Value="-2,-2,-2,-1"/>
                            <Setter Property="Margin" TargetName="Content" Value="0,0,0,1"/>
                        </MultiTrigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsSelected" Value="true"/>
                                <Condition Property="TabStripPlacement" Value="Bottom"/>
                            </MultiTrigger.Conditions>
                            <Setter Property="Margin" Value="-2,-1,-2,-2"/>
                            <Setter Property="Margin" TargetName="Content" Value="0,1,0,0"/>
                        </MultiTrigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsSelected" Value="true"/>
                                <Condition Property="TabStripPlacement" Value="Left"/>
                            </MultiTrigger.Conditions>
                            <Setter Property="Margin" Value="-2,-2,-1,-2"/>
                            <Setter Property="Margin" TargetName="Content" Value="0,0,1,0"/>
                        </MultiTrigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsSelected" Value="true"/>
                                <Condition Property="TabStripPlacement" Value="Right"/>
                            </MultiTrigger.Conditions>
                            <Setter Property="Margin" Value="-1,-2,-2,-2"/>
                            <Setter Property="Margin" TargetName="Content" Value="1,0,0,0"/>
                        </MultiTrigger>
                        <Trigger Property="IsEnabled" Value="false">
                            <!--previous (default) border brush value was BorderBrush="{StaticResource TabItemDisabledBorderBrush}"-->
                            <Setter Property="BorderBrush" TargetName="Bd" Value="{x:Null}" />
                            <Setter Property="Background" TargetName="Bd" Value="{StaticResource TabItemDisabledBackground}"/>
                            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

以下是应用样式更改后控件的外观(在Blend + SketchFlow for VS2012中预览):

Preview in Blend + SketchFlow for VS2012