Если вы хотите применить MouseEnter и MouseLeave EventTriggers ко всей строке списка, то вы можете переписать стиль ListviewItem, например:
<Style x:Key="ListViewItemFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle RadiusY="2" RadiusX="2" Stroke="#8E6EA6F5" StrokeThickness="1"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<LinearGradientBrush x:Key="ListItemHoverFill" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFF1FBFF" Offset="0"/>
<GradientStop Color="#FFD5F1FE" Offset="1"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="ListItemSelectedFill" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFD9F4FF" Offset="0"/>
<GradientStop Color="#FF9BDDFB" Offset="1"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="ListItemSelectedInactiveFill" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFEEEDED" Offset="0"/>
<GradientStop Color="#FFDDDDDD" Offset="1"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="ListItemSelectedHoverFill" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFEAF9FF" Offset="0"/>
<GradientStop Color="#FFC9EDFD" Offset="1"/>
</LinearGradientBrush>
<Style x:Key="ListViewItemStyle1" TargetType="{x:Type ListViewItem}">
<Setter Property="FocusVisualStyle" Value="{StaticResource ListViewItemFocusVisual}"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderBrush" Value="Transparent"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="Margin" Value="0,0,0,1"/>
<Setter Property="Padding" Value="5,2,5,2"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListViewItem}">
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" CornerRadius="2" SnapsToDevicePixels="true">
<Border x:Name="InnerBorder" BorderThickness="1" CornerRadius="1">
<Grid>
<Grid.RowDefinitions>
<RowDefinition MaxHeight="11"/>
<RowDefinition/>
</Grid.RowDefinitions>
<Rectangle x:Name="UpperHighlight" Fill="#75FFFFFF" Visibility="Collapsed"/>
<GridViewRowPresenter Grid.RowSpan="2" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Grid>
</Border>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Background" Value="{StaticResource ListItemHoverFill}"/>
<Setter Property="BorderBrush" Value="#FFCCF0FF"/>
<Setter Property="Visibility" TargetName="UpperHighlight" Value="Visible"/>
</Trigger>
<Trigger Property="IsSelected" Value="true">
<Setter Property="Background" Value="{StaticResource ListItemSelectedFill}"/>
<Setter Property="BorderBrush" Value="#FF98DDFB"/>
<Setter Property="BorderBrush" TargetName="InnerBorder" Value="#80FFFFFF"/>
<Setter Property="Visibility" TargetName="UpperHighlight" Value="Visible"/>
<Setter Property="Fill" TargetName="UpperHighlight" Value="#40FFFFFF"/>
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="true"/>
<Condition Property="Selector.IsSelectionActive" Value="false"/>
</MultiTrigger.Conditions>
<Setter Property="Background" Value="{StaticResource ListItemSelectedInactiveFill}"/>
<Setter Property="BorderBrush" Value="#FFCFCFCF"/>
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="true"/>
<Condition Property="IsMouseOver" Value="true"/>
</MultiTrigger.Conditions>
<Setter Property="Background" Value="{StaticResource ListItemSelectedHoverFill}"/>
<Setter Property="BorderBrush" Value="#FF98DDFB"/>
</MultiTrigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>