Styling MenuItem not working as expected - wpf

Question

I have a menu.
Here is the xaml for creating this menu :
<Menu Grid.Column="0" ItemsSource="{Binding ParentButtons}" >
<Menu.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel Orientation="Vertical"/>
</ItemsPanelTemplate>
</Menu.ItemsPanel>
<Menu.Resources>
<Style TargetType="{x:Type MenuItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type MenuItem}">
<Border x:Name="templateRoot" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
<Grid VerticalAlignment="Center">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<ContentPresenter x:Name="Icon" Content="{TemplateBinding Icon}" ContentSource="Icon" HorizontalAlignment="Center" Height="16" Margin="3" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="Center" Width="16"/>
<Path x:Name="GlyphPanel" Data="F1M10,1.2L4.7,9.1 4.5,9.1 0,5.2 1.3,3.5 4.3,6.1 8.3,0 10,1.2z" Fill="{TemplateBinding Foreground}" FlowDirection="LeftToRight" Margin="3" Visibility="Collapsed" VerticalAlignment="Center"/>
<ContentPresenter ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" Grid.Column="1" ContentStringFormat="{TemplateBinding HeaderStringFormat}" ContentSource="Header" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
<Popup x:Name="PART_Popup" AllowsTransparency="True" Focusable="False" IsOpen="{Binding IsSubmenuOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{DynamicResource {x:Static SystemParameters.MenuPopupAnimationKey}}" Placement="Right">
<Border x:Name="SubMenuBorder" BorderBrush="#FF999999" BorderThickness="1" Background="#FFF0F0F0" Padding="2">
<ScrollViewer x:Name="SubMenuScrollViewer" Style="{DynamicResource {ComponentResourceKey ResourceId=MenuScrollViewer, TypeInTargetAssembly={x:Type FrameworkElement}}}">
<Grid RenderOptions.ClearTypeHint="Enabled">
<Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
<Rectangle x:Name="OpaqueRect" Fill="{Binding Background, ElementName=SubMenuBorder}" Height="{Binding ActualHeight, ElementName=SubMenuBorder}" Width="{Binding ActualWidth, ElementName=SubMenuBorder}"/>
</Canvas>
<!--<Rectangle Fill="#FFD7D7D7" HorizontalAlignment="Left" Margin="29,2,0,2" Width="1"/>-->
<ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Cycle" Grid.IsSharedSizeScope="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" KeyboardNavigation.TabNavigation="Cycle"/>
</Grid>
</ScrollViewer>
</Border>
</Popup>
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSuspendingPopupAnimation" Value="True">
<Setter Property="PopupAnimation" TargetName="PART_Popup" Value="None"/>
</Trigger>
<Trigger Property="Icon" Value="{x:Null}">
<Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Visibility" TargetName="GlyphPanel" Value="Visible"/>
<Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
</Trigger>
<Trigger Property="IsHighlighted" Value="True">
<Setter Property="Background" TargetName="templateRoot" Value="#3D26A0DA"/>
<Setter Property="BorderBrush" TargetName="templateRoot" Value="#FF26A0DA"/>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="TextElement.Foreground" TargetName="templateRoot" Value="#FF707070"/>
<Setter Property="Fill" TargetName="GlyphPanel" Value="#FF707070"/>
</Trigger>
<Trigger Property="CanContentScroll" SourceName="SubMenuScrollViewer" Value="False">
<Setter Property="Canvas.Top" TargetName="OpaqueRect" Value="{Binding VerticalOffset, ElementName=SubMenuScrollViewer}"/>
<Setter Property="Canvas.Left" TargetName="OpaqueRect" Value="{Binding HorizontalOffset, ElementName=SubMenuScrollViewer}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Menu.Resources>
<Menu.ItemTemplate>
<HierarchicalDataTemplate DataType="{x:Type model:Design_Master_Buttons}"
ItemsSource="{Binding Design_Master_Buttons1}">
<StackPanel Orientation="Horizontal">
<Path Data="{Binding ImageData}"
Stretch="Uniform" Width="32" Height="32" Margin="5" RenderTransformOrigin="0.5,0.5">
<Path.RenderTransform>
<TransformGroup>
<TransformGroup.Children>
<RotateTransform Angle="0" />
<ScaleTransform ScaleX="1" ScaleY="1" />
</TransformGroup.Children>
</TransformGroup>
</Path.RenderTransform>
<Path.Resources>
<Style TargetType="{x:Type Path}">
<Setter Property="Fill" Value="#FFFFFFFF" />
<Style.Triggers>
<Trigger Property="MenuItem.IsMouseOver" Value="True">
<Setter Property="Fill" Value="{Binding MouseOverColor}" />
</Trigger>
</Style.Triggers>
</Style>
</Path.Resources>
</Path>
<TextBlock Text="{Binding Title}" VerticalAlignment="Center">
<TextBlock.Resources>
<Style TargetType="{x:Type TextBlock}" BasedOn="{StaticResource {x:Type TextBlock}}">
<Setter Property="Margin" Value="10,0,0,0" />
<Style.Triggers>
<Trigger Property="Text" Value="">
<Setter Property="Margin" Value="0" />
</Trigger>
</Style.Triggers>
</Style>
</TextBlock.Resources>
</TextBlock>
</StackPanel>
</HierarchicalDataTemplate>
</Menu.ItemTemplate>
</Menu>
But I have got 1 problem:
When I mouseOver Path (It's working good):
When I mouseOver MenuItem (It's not working as expected) :

Answer 1

Try this : In my case stackpanel as AncestorType is not worked so i used Menuitem.
<StackPanel>
<Path x:Name="PathData" Data="M 0 0 L 0 5 L 5 5 Z" Stretch="Uniform" Width="32" Height="32" RenderTransformOrigin="0.5,0.5">
<Path.RenderTransform>
<TransformGroup>
<TransformGroup.Children>
<RotateTransform Angle="0"/>
<ScaleTransform ScaleX="1" ScaleY="1" />
</TransformGroup.Children>
</TransformGroup>
</Path.RenderTransform>
<Path.Style>
<Style TargetType="{x:Type Path}">
<Setter Property="Fill" Value="Transparent" />
<Style.Triggers>
<DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type MenuItem}},Path=IsMouseOver}" Value="True">
<Setter Property="Fill" Value="Green" />
</DataTrigger>
</Style.Triggers>
</Style>
</Path.Style>
</Path>
</StackPanel>

Answer 2

Your Path resource is not correct replace it by :
<Path.Resources>
<Style TargetType="{x:Type Path}">
<Setter Property="Fill" Value="#FFFFFFFF" />
<Style.Triggers>
<DataTrigger Binding="{Binding RelativeSource={RelativeSource AncestorType=StackPanel,AncestorLevel=1}, Path=IsMouseOver}" Value="True" >
<Setter Property="Fill" Value="{Binding MouseOverColor}" />
</DataTrigger>
</Style.Triggers>
</Style>
</Path.Resources>
And add Background="#01000000" to the StackPanel, it will be able to detect IsMouseOver property.
And now it will works.
Regards.