我正在使用MahApps Metro UI工具包编写WPF应用程序。
这是我的.xaml文件:
http://mahapps.com/guides/quick-start.html
根据他们网站上的指南,我基本完成了我的应用程序并且看起来非常流畅。唯一的问题是我无法找到如何使用他们提供的图标包作为上下文菜单图标。 这是我想要实现的可视化示例。虽然我能够使原始的“Windows”菜单项显示其图标,但我无法为上下文菜单(menuitems)做到同样的效果。我是否做错了什么或者有其他方法来解决这个问题?这是我的.xaml文件:
<Menu IsMainMenu="True">
<MenuItem Header="_Windows" ContextMenuService.IsEnabled="False" Click="WindowsMenuItem_Click">
<MenuItem.Icon>
<Rectangle Width="15" Height="15" Fill="{Binding RelativeSource={RelativeSource AncestorType=MenuItem}, Path=Foreground}">
<Rectangle.OpacityMask>
<VisualBrush Stretch="Fill" Visual="{StaticResource appbar_window}" />
</Rectangle.OpacityMask>
</Rectangle>
</MenuItem.Icon>
<MenuItem.ContextMenu>
<ContextMenu>
<MenuItem Header="_Welcome Module">
<MenuItem.Icon>
<Rectangle Width="15" Height="15" Fill="{Binding RelativeSource={RelativeSource AncestorType=MenuItem}, Path=Foreground}">
<Rectangle.OpacityMask>
<VisualBrush Stretch="Fill" Visual="{StaticResource appbar_home}" />
</Rectangle.OpacityMask>
</Rectangle>
</MenuItem.Icon>
</MenuItem>
<MenuItem Header="_Schedule Module">
<MenuItem.Icon>
<Rectangle Width="15" Height="15" Fill="{Binding RelativeSource={RelativeSource AncestorType=MenuItem}, Path=Foreground}">
<Rectangle.OpacityMask>
<VisualBrush Stretch="Fill" Visual="{StaticResource appbar_calendar}" />
</Rectangle.OpacityMask>
</Rectangle>
</MenuItem.Icon>
</MenuItem>
<MenuItem Header="_Performance Module">
<MenuItem.Icon>
<Rectangle Width="15" Height="15" Fill="{Binding RelativeSource={RelativeSource AncestorType=MenuItem}, Path=Foreground}">
<Rectangle.OpacityMask>
<VisualBrush Stretch="Fill" Visual="{StaticResource appbar_table}" />
</Rectangle.OpacityMask>
</Rectangle>
</MenuItem.Icon>
</MenuItem>
<MenuItem Header="_Audit Module">
<MenuItem.Icon>
<Rectangle Width="15" Height="15" Fill="{Binding RelativeSource={RelativeSource AncestorType=MenuItem}, Path=Foreground}">
<Rectangle.OpacityMask>
<VisualBrush Stretch="Fill" Visual="{StaticResource appbar_graph_line}" />
</Rectangle.OpacityMask>
</Rectangle>
</MenuItem.Icon>
</MenuItem>
</ContextMenu>
</MenuItem.ContextMenu>
</MenuItem>
</Menu>
而我的.xaml.cs文件:
public partial class MainWindow
{
public MainWindow()
{
InitializeComponent();
DataContext = new MainWindowViewModel();
}
private void WindowsMenuItem_Click(object sender, RoutedEventArgs e)
{
(sender as MenuItem).ContextMenu.IsEnabled = true;
(sender as MenuItem).ContextMenu.PlacementTarget = (sender as MenuItem);
(sender as MenuItem).ContextMenu.Placement = System.Windows.Controls.Primitives.PlacementMode.Bottom;
(sender as MenuItem).ContextMenu.IsOpen = true;
}
}