WPF 上下文菜单设计。如何在WPF菜单项中设置背景？

发布于 2024-08-09 17:56:17 字数 932 浏览 10 评论 0原文

我创建这样的弹出菜单。

<DockPanel.ContextMenu>
    <ContextMenu Background="#CD252220" Opacity="0.95" Foreground="LightGray" BorderBrush="DarkGray">
        <MenuItem Header="_Save Image..." x:Name="btSave" IsEnabled="False" Click="btSave_Click" Style="{StaticResource MyStyle}">
            <MenuItem.Icon>
                <Image Source="icons/save.png" Width="16" Height="16" Style="{StaticResource IconStyle}"/>
            </MenuItem.Icon>
        </MenuItem>
    </ContextMenu>
</DockPanel.ContextMenu>

为什么这个菜单的左侧是白色的？？？？？？它将是#CD252220颜色或透明，发髻不是白色！！！！！！如何修复它？ :)

http://itrash.ru/idb/40e872e71346dcf9bd58ba8aec0b2a17/omenu.png.html< /a> - 菜单屏幕

截图XP下没问题。仅在 Vista 上菜单为白色（没有 W7）

原文

I create popup menu like this.

<DockPanel.ContextMenu>
    <ContextMenu Background="#CD252220" Opacity="0.95" Foreground="LightGray" BorderBrush="DarkGray">
        <MenuItem Header="_Save Image..." x:Name="btSave" IsEnabled="False" Click="btSave_Click" Style="{StaticResource MyStyle}">
            <MenuItem.Icon>
                <Image Source="icons/save.png" Width="16" Height="16" Style="{StaticResource IconStyle}"/>
            </MenuItem.Icon>
        </MenuItem>
    </ContextMenu>
</DockPanel.ContextMenu>

Why left-side of this menu is WHITE????? It'll be a #CD252220 color or transparent, bun not white!!!!!!
How to fix it? :)

http://itrash.ru/idb/40e872e71346dcf9bd58ba8aec0b2a17/omenu.png.html - menu screenshot

P.S. In XP it's OK. Menu is White only on Vista (don't have W7)

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掀纱窥君容 2024-08-16 17:56:17

我找到解决方案！您只需在样式定义部分中设置属性 OverridesDefaultStyle ;)

<Style x:Key="{x:Type ContextMenu}" TargetType="{x:Type ContextMenu}">
    <Setter Property="OverridesDefaultStyle" Value="True"/>
    <Setter Property="SnapsToDevicePixels" Value="True"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ContextMenu}">
                <Border Background="#CD222120" CornerRadius="7, 7, 8, 8" BorderBrush="DarkGray" BorderThickness="2" Opacity="0.96">
                    <StackPanel ClipToBounds="True" Orientation="Vertical" IsItemsHost="True" Margin="5,4,5,4"/>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>    

<ControlTemplate x:Key="{x:Static MenuItem.TopLevelItemTemplateKey}" TargetType="{x:Type MenuItem}">
    <Border Name="Border" >
        <Grid>
            <ContentPresenter Margin="6,3,6,3" ContentSource="Header" RecognizesAccessKey="True" />
        </Grid>
    </Border>
</ControlTemplate>

I find solution! You have to just set property OverridesDefaultStyle in Style-defenition section ;)

<Style x:Key="{x:Type ContextMenu}" TargetType="{x:Type ContextMenu}">
    <Setter Property="OverridesDefaultStyle" Value="True"/>
    <Setter Property="SnapsToDevicePixels" Value="True"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ContextMenu}">
                <Border Background="#CD222120" CornerRadius="7, 7, 8, 8" BorderBrush="DarkGray" BorderThickness="2" Opacity="0.96">
                    <StackPanel ClipToBounds="True" Orientation="Vertical" IsItemsHost="True" Margin="5,4,5,4"/>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>    

<ControlTemplate x:Key="{x:Static MenuItem.TopLevelItemTemplateKey}" TargetType="{x:Type MenuItem}">
    <Border Name="Border" >
        <Grid>
            <ContentPresenter Margin="6,3,6,3" ContentSource="Header" RecognizesAccessKey="True" />
        </Grid>
    </Border>
</ControlTemplate>

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