将命令绑定到层次结构数据模板MenuItem

Question

我正在尝试将VM方法绑定为MenuItem中的命令。尽管菜单显示正确，但函数永远不会被调用。我希望从命令绑定中调用MenuCommand方法。

Xaml

<Menu.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding SubMenu}">
<TextBlock Text="{Binding Name}">
<TextBlock.InputBindings>
<MouseBinding Command="{Binding MenuCommand}" MouseAction="LeftClick" />
</TextBlock.InputBindings>
</TextBlock>
</HierarchicalDataTemplate>
</Menu.ItemTemplate>

ViewModel

public class MenuViewModel : ViewModelBase
{
public ObservableCollection<Menu> Menu { get; set; }
public RelayCommand MenuCommand { get; set; }
public void Load()
{
Menu = new ObservableCollection<Menu> {
new Menu
{
Name = "File",
SubMenu = new List<Menu>
{
new Menu  { Name = "New" },
new Menu  { Name = "Open" },
new Menu  { Name = "Save" }
}
}};
MenuCommand = new RelayCommand(MenuExecution);
}
public void MenuExecution(object item)
{
MessageBox.Show("Hello");
}
}

Answer 1

谢谢@GK&标记我能够通过以下Xaml 成功绑定命令

<Menu ItemsSource="{Binding Menu}" >
<Menu.ItemContainerStyle>
<Style TargetType="{x:Type MenuItem}" >
<Setter Property="Command" Value="{Binding ElementName=level1Lister, Path=DataContext.MenuCommand}" />
<Setter Property="CommandParameter" Value="{Binding RelativeSource={RelativeSource Self}}"/>
</Style>
</Menu.ItemContainerStyle>
<Menu.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Path=SubMenu}">
<TextBlock Text="{Binding Name}"/>
</HierarchicalDataTemplate>
</Menu.ItemTemplate>
</Menu>