WPF将上下文菜单对齐到按钮的右下角

Question

我有一个Button和一个ContextMenu属于的Button.
这是xaml:

<Button x:Name="ListBoxButton" Content="6" Style="{DynamicResource TabControlButton}">
    <Button.ContextMenu>
        <ContextMenu>
            <MenuItem Header="tst1"></MenuItem>
            <MenuItem Header="tst2"></MenuItem>
        </ContextMenu>
    </Button.ContextMenu>
</Button>

我希望在这篇文章中将我的ContextMenu与图像#2完全相同,
我希望使用xaml来实现它而不是代码隐藏.

我不可能实现它,我试图用玩PlacementTarget,HorizontalOffset,VeritcalOffset和Placement的性能ContextMenu,但它并没有对齐,我想..

Answer 1

我想你应该尝试这样的事情

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Button HorizontalAlignment="Center" 
                VerticalAlignment="Center" 
                Height="20" Width="80" 
                ContextMenuService.Placement="Left"                     
                ContextMenuService.HorizontalOffset="{Binding RelativeSource={RelativeSource Self}, Path=ActualWidth}" 
                ContextMenuService.VerticalOffset="{Binding RelativeSource={RelativeSource Self}, Path=ActualHeight}">
            <Button.ContextMenu>
                <ContextMenu>
                    <MenuItem Header="Menu item 01"/>
                    <MenuItem Header="Menu item 02"/>
                </ContextMenu>
            </Button.ContextMenu>
        </Button>
    </Grid>
</Window>