在menu的最右端添加一个menuItem ,该设置什么属性?
------解决思路----------------------
类似:
<Menu Width="500" Height="60">
<Menu.ItemsPanel>
<ItemsPanelTemplate>
<DockPanel></DockPanel>
</ItemsPanelTemplate>
</Menu.ItemsPanel>
<MenuItem Width="100" DockPanel.Dock="Left" Header="File" Height="30" HorizontalContentAlignment="Right">
<MenuItem Header="复制"></MenuItem>
<MenuItem Header="粘贴"></MenuItem>
</MenuItem>
<MenuItem Width="100" Height="30" Header="File1" HorizontalContentAlignment="Right">
</MenuItem>
<MenuItem Width="100" Height="30" Header="File2" HorizontalContentAlignment="Right">
</MenuItem>
<MenuItem Width="100" Height="30" HorizontalAlignment="Right" Margin="0,0,5,0" Header="File3" HorizontalContentAlignment="Right">
</MenuItem>
</Menu>