How to remove rectangle from custom ScrollBar? - wpf

Question

In the picture you can see the white rectangle in the right edge from my Listbox. How can i remove this or set the opacity for this element to "0.0"?
I can't find the element in code (I tried to change color properties of several elements to see wich element reacts)
Style/Template - Code for my Listbox and ScrollBar-Elements:
<Style x:Key="ListBoxStyle" TargetType="{x:Type ListBox}">
<Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/>
<Setter Property="BorderBrush" Value="{StaticResource ListBorder}"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Visible"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Visible"/>
<Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
<Setter Property="ScrollViewer.PanningMode" Value="Both"/>
<Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBox}">
<Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="1" SnapsToDevicePixels="true">
<ScrollViewer Focusable="false" Padding="{TemplateBinding Padding}">
<ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</ScrollViewer>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsGrouping" Value="true"/>
<Condition Property="VirtualizingPanel.IsVirtualizingWhenGrouping" Value="false"/>
</MultiTrigger.Conditions>
<Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
</MultiTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<!-- Brushes used in Styling of ScrollViewer -->
<SolidColorBrush x:Key="StandardBorderBrush" Color="#888" />
<SolidColorBrush x:Key="StandardBackgroundBrush" Color="#FFF" />
<SolidColorBrush x:Key="HoverBorderBrush" Color="#DDD" />
<SolidColorBrush x:Key="SelectedBackgroundBrush" Color="Gray" />
<SolidColorBrush x:Key="SelectedForegroundBrush" Color="White" />
<SolidColorBrush x:Key="DisabledForegroundBrush" Color="#FFEC1C1C" />
<SolidColorBrush x:Key="NormalBrush" Color="#888" />
<SolidColorBrush x:Key="NormalBorderBrush" Color="#888" />
<SolidColorBrush x:Key="HorizontalNormalBrush" Color="#888" />
<SolidColorBrush x:Key="HorizontalNormalBorderBrush" Color="#888" />
<LinearGradientBrush x:Key="ListBoxBackgroundBrush"
StartPoint="0,0" EndPoint="1,0.001">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="White" Offset="0.0" />
<GradientStop Color="White" Offset="0.6" />
<GradientStop Color="#DDDDDD" Offset="1.2"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="StandardBrush"
StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#CCC" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<SolidColorBrush x:Key="GlyphBrush" Color="White" />
<LinearGradientBrush x:Key="PressedBrush"
StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#BBB" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="0.1"/>
<GradientStop Color="#EEE" Offset="0.9"/>
<GradientStop Color="#FFF" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<!-- SrollViewer ScrollBar Repeat Buttons (at each end) -->
<Style x:Key="ScrollBarLineButton" TargetType="{x:Type RepeatButton}">
<Setter Property="Opacity" Value="0.7"></Setter>
<Setter Property="SnapsToDevicePixels" Value="True"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="Focusable" Value="false"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type RepeatButton}">
<Border
Name="Border"
Margin="1"
CornerRadius="0"
Background="{x:Null}"
BorderBrush="{StaticResource NormalBorderBrush}"
BorderThickness="0">
<Path
HorizontalAlignment="Center"
VerticalAlignment="Center"
Fill="{StaticResource GlyphBrush}"
Data="{Binding Path=Content,
RelativeSource={RelativeSource TemplatedParent}}" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsPressed" Value="true">
<Setter TargetName="Border" Property="Background"
Value="{StaticResource PressedBrush}" />
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground"
Value="{StaticResource DisabledForegroundBrush}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<!-- SrollViewer ScrollBar Repeat Buttons (The part in the middle,
not the thumb the long area between the buttons ) -->
<Style x:Key="ScrollBarPageButton" TargetType="{x:Type RepeatButton}">
<Setter Property="Opacity" Value="0.5"></Setter>
<Setter Property="SnapsToDevicePixels" Value="True"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="IsTabStop" Value="false"/>
<Setter Property="Focusable" Value="false"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type RepeatButton}">
<Border Background="Transparent" />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<!-- ScrollViewer ScrollBar Thumb, that part that can be dragged
up/down or left/right Buttons -->
<Style x:Key="ScrollBarThumb" TargetType="{x:Type Thumb}">
<Setter Property="Opacity" Value="0.5"></Setter>
<Setter Property="SnapsToDevicePixels" Value="True"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="IsTabStop" Value="false"/>
<Setter Property="Focusable" Value="false"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Thumb}">
<Border
CornerRadius="0"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="1" />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<ControlTemplate x:Key="VerticalScrollBar"
TargetType="{x:Type ScrollBar}">
<Grid >
<Grid.RowDefinitions>
<RowDefinition MaxHeight="18"/>
<RowDefinition Height="0.00001*"/>
<RowDefinition MaxHeight="18"/>
</Grid.RowDefinitions>
<Border
Grid.RowSpan="3"
CornerRadius="0"
Background="White" Opacity="0" />
<RepeatButton
Grid.Row="0"
Style="{StaticResource ScrollBarLineButton}"
Height="18"
Command="ScrollBar.LineUpCommand"
Content="M 0 4 L 8 4 L 4 0 Z" />
<Track
Name="PART_Track"
Grid.Row="1"
IsDirectionReversed="true">
<Track.DecreaseRepeatButton>
<RepeatButton
Style="{StaticResource ScrollBarPageButton}"
Command="ScrollBar.PageUpCommand" />
</Track.DecreaseRepeatButton>
<Track.Thumb>
<Thumb
Style="{StaticResource ScrollBarThumb}"
Margin="1,0,1,0"
Background="{StaticResource HorizontalNormalBrush}"
BorderBrush="{StaticResource HorizontalNormalBorderBrush}" />
</Track.Thumb>
<Track.IncreaseRepeatButton>
<RepeatButton
Style="{StaticResource ScrollBarPageButton}"
Command="ScrollBar.PageDownCommand" />
</Track.IncreaseRepeatButton>
</Track>
<RepeatButton
Grid.Row="3"
Style="{StaticResource ScrollBarLineButton}"
Height="18"
Command="ScrollBar.LineDownCommand"
Content="M 0 0 L 4 4 L 8 0 Z"/>
</Grid>
</ControlTemplate>
<!-- HorizontalScrollBar Template using the previously created Templates -->
<ControlTemplate x:Key="HorizontalScrollBar"
TargetType="{x:Type ScrollBar}">
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition MaxWidth="18"/>
<ColumnDefinition Width="0.00001*"/>
<ColumnDefinition MaxWidth="18"/>
</Grid.ColumnDefinitions>
<Border
Grid.ColumnSpan="3"
CornerRadius="0"
Background="White" Opacity="0" />
<RepeatButton
Grid.Column="0"
Style="{StaticResource ScrollBarLineButton}"
Width="18"
Command="ScrollBar.LineLeftCommand"
Content="M 4 0 L 4 8 L 0 4 Z" />
<Track
Name="PART_Track"
Grid.Column="1"
IsDirectionReversed="False">
<Track.DecreaseRepeatButton>
<RepeatButton
Style="{StaticResource ScrollBarPageButton}"
Command="ScrollBar.PageLeftCommand" />
</Track.DecreaseRepeatButton>
<Track.Thumb>
<Thumb
Style="{StaticResource ScrollBarThumb}"
Margin="0,1,0,1"
Background="{StaticResource NormalBrush}"
BorderBrush="{StaticResource NormalBorderBrush}" />
</Track.Thumb>
<Track.IncreaseRepeatButton>
<RepeatButton
Style="{StaticResource ScrollBarPageButton}"
Command="ScrollBar.PageRightCommand" />
</Track.IncreaseRepeatButton>
</Track>
<RepeatButton
Grid.Column="3"
Style="{StaticResource ScrollBarLineButton}"
Width="18"
Command="ScrollBar.LineRightCommand"
Content="M 0 0 L 4 4 L 0 8 Z"/>
</Grid>
</ControlTemplate>
<!-- Style for overall ScrollBar -->
<Style x:Key="{x:Type ScrollBar}" TargetType="{x:Type ScrollBar}">
<Setter Property="Opacity" Value="0.5"></Setter>
<Setter Property="SnapsToDevicePixels" Value="True"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Style.Triggers>
<Trigger Property="Orientation" Value="Horizontal">
<Setter Property="Width" Value="Auto"/>
<Setter Property="Height" Value="18" />
<Setter Property="Template"
Value="{StaticResource HorizontalScrollBar}" />
</Trigger>
<Trigger Property="Orientation" Value="Vertical">
<Setter Property="Width" Value="18"/>
<Setter Property="Height" Value="Auto" />
<Setter Property="Template"
Value="{StaticResource VerticalScrollBar}" />
</Trigger>
</Style.Triggers>
</Style>
<!-- Style for overall ScrollViewer -->
<Style x:Key="FavsScrollViewer" TargetType="{x:Type ScrollViewer}">
<Setter Property="Opacity" Value="0.5"></Setter>
<Setter Property="OverridesDefaultStyle" Value="True"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ScrollViewer}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<ScrollContentPresenter Grid.Column="1"/>
<ScrollBar Name="PART_VerticalScrollBar"
Value="{TemplateBinding VerticalOffset}"
Maximum="{TemplateBinding ScrollableHeight}"
ViewportSize="{TemplateBinding ViewportHeight}"
Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
<ScrollBar Name="PART_HorizontalScrollBar"
Orientation="Horizontal"
Grid.Row="1"
Grid.Column="1"
Value="{TemplateBinding HorizontalOffset}"
Maximum="{TemplateBinding ScrollableWidth}"
ViewportSize="{TemplateBinding ViewportWidth}"
Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
THX!