在鼠标右键单击时设置 WPF 按钮样式答案

【问题标题】：Style a WPF Button on right mouse click在鼠标右键单击时设置 WPF 按钮样式
【发布时间】：2009-10-22 14:47:20
【问题描述】：

是否可以在 WPF 中将样式触发器添加到 Button 以确定 ContextMenu 是否已打开？

如果是这样，如果上下文菜单打开，我想为相应按钮的背景着色。

找不到常规的方法...

【问题讨论】：

【解决方案1】：

这里有一个解决方案：

<Grid ShowGridLines="True">
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto" />
    </Grid.RowDefinitions>
    <Button Grid.Column="1" Margin="5" Content="Button" x:Name="theButton">
        <Button.Background>
            <SolidColorBrush x:Name="BackgroundBrush" Color="LightGray" />
        </Button.Background>
        <Button.ContextMenu>
            <ContextMenu x:Name="contextMenu">
                <MenuItem Header="Option 1" />
                <MenuItem Header="Option 2" />
            </ContextMenu>
        </Button.ContextMenu>
        <Button.Triggers>
            <!-- This changed the color to red when the context menu is openning -->
            <EventTrigger RoutedEvent="Button.ContextMenuOpening">
                <BeginStoryboard>
                    <Storyboard>
                        <ColorAnimation Storyboard.TargetName="BackgroundBrush"
                                        Storyboard.TargetProperty="Color" Duration="0:0:0" To="Red" />
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger>
            <!-- This changed the color back to light gray when the context menu is closing -->
            <EventTrigger RoutedEvent="Button.ContextMenuClosing">
                <BeginStoryboard>
                    <Storyboard>
                        <ColorAnimation Storyboard.TargetName="BackgroundBrush"
                                        Storyboard.TargetProperty="Color" Duration="0:0:0" To="LightGray" />
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger>
        </Button.Triggers>
    </Button>
</Grid>

【讨论】：