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how to chnage the ListViewItems default colors when mouse is over in WPF

hi i want to change the default mouse over color of ListViewItems in WPF and i tried this code to change the default mouse over color here is my code
<ListView x:Name="lv"
Background="Transparent"
BorderBrush="Transparent"
ScrollViewer.HorizontalScrollBarVisibility="Disabled"
Margin="0,20,0,0"
>
<!--home-->
<ListViewItem HorizontalAlignment="Left"
Style="{StaticResource lv_font}"
Height="60" MouseEnter="ListViewItem_MouseEnter"
>
<StackPanel Orientation="Horizontal"
Width="230"
Margin="-6,0,0,0"
Height="60"
>
<Image Source="/Assert/alarms_home.ico"
Stretch="None"
Margin="7,0,0,0"
VerticalAlignment="Center"
/>
<TextBlock Text="خانه"
Margin="50,0,0,0"
VerticalAlignment="Center"
/>
</StackPanel>
<!--tooltip-->
<ListViewItem.ToolTip>
<ToolTip x:Name="tt_home"
Content="خانه"
Style="{StaticResource tt_style}"/>
</ListViewItem.ToolTip>
</ListViewItem>
<!--alarms-->
<ListViewItem HorizontalAlignment="Left"
Style="{StaticResource lv_font}"
Margin="0,20,0,0"
Height="60"
MouseEnter="ListViewItem_MouseEnter"
>
<StackPanel Orientation="Horizontal"
Width="230"
Margin="-6,0,0,0"
Height="60"
>
<Image Source="/Assert/icons8_alarm_on_1.ico"
Stretch="None"
Margin="7,0,0,0"
VerticalAlignment="Center"/>
<TextBlock Text="یادداشت ها"
Margin="50,0,0,0"
VerticalAlignment="Center"
/>
</StackPanel>
<!--tooltip-->
<ListViewItem.ToolTip>
<ToolTip x:Name="tt_alarms"
Content="یادداشت ها"
Style="{StaticResource tt_style}"/>
</ListViewItem.ToolTip>
</ListViewItem>
<!--add notes-->
<ListViewItem HorizontalAlignment="Left"
Style="{StaticResource lv_font}"
Margin="0,20,0,0"
Height="60"
MouseEnter="ListViewItem_MouseEnter"
>
<StackPanel Orientation="Horizontal"
Width="230"
Margin="-6,0,0,0"
Height="60"
>
<Image Source="/Assert/alarm_add_1.ico"
Stretch="None"
Margin="7,0,0,0"
VerticalAlignment="Center"/>
<TextBlock Text="افزودن"
Margin="50,0,0,0"
VerticalAlignment="Center"
/>
</StackPanel>
<!--tooltip-->
<ListViewItem.ToolTip>
<ToolTip x:Name="tt_add"
Content="افزودن"
Style="{StaticResource tt_style}"/>
</ListViewItem.ToolTip>
</ListViewItem>
<!--about us-->
<ListViewItem HorizontalAlignment="Left"
Style="{StaticResource lv_font}"
Margin="0,20,0,0"
Height="60"
MouseEnter="ListViewItem_MouseEnter"
>
<StackPanel Orientation="Horizontal"
Width="230"
Margin="-6,0,0,0"
Height="60"
>
<Image Source="/Assert/icons8_about_5.ico"
Stretch="None"
Margin="7,0,0,0"
VerticalAlignment="Center"
/>
<TextBlock Text="درباره ما"
Margin="50,0,0,0"
VerticalAlignment="Center"
/>
</StackPanel>
<!--tooltip-->
<ListViewItem.ToolTip>
<ToolTip x:Name="tt_about"
Content="درباره ما"
Style="{StaticResource tt_style}"/>
</ListViewItem.ToolTip>
</ListViewItem>
<!--style-mouse-over for list-->
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListViewItem}">
<Border x:Name="Bd1"
BorderBrush="{TemplateBinding BorderBrush}"
Background="{TemplateBinding Background}"
BorderThickness="{TemplateBinding BorderThickness}"
SnapsToDevicePixels="True"
>
<ContentPresenter
HorizontalAlignment="{TemplateBinding HorizontalAlignment}"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
VerticalAlignment="{TemplateBinding VerticalAlignment}"
/>
</Border>
<ControlTemplate.Triggers>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver"
Value="True"/>
</MultiTrigger.Conditions>
<Setter Property="Background"
TargetName="Bd1"
Value="#B5C1B4"/>
<Setter Property="BorderBrush"
TargetName="Bd1"
Value="#B5C1B4"/>
</MultiTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.ItemContainerStyle>
</ListView>
But it is not worked, I did not get any error but it is not changed the default color if you have any other idea or this code is wrong please tell me.
Thanks

Strange layout issue MVVM .Net 4.7.2 App controls disappear

I’m building a MVVM app using .Net 4.7.2 that works like a wizard (based on https://www.codeproject.com/KB/WPF/InternationalizedWizard.aspx?display=Print), so no additional frameworks, just the RelayCommand class, a MainWindow.cs that hosts the Main view (the view that has navigation items of the wizard on the left side, and the right side area that hosts the subviews which display based on the stage of the wizard).
Mi issue is that one of my users is experiencing a very strange behaviour with the controls. This is a sample photo of what the application should look like:
And this is a sample photo of what happens to the user. Notice that the image on the bottom left disappears, the bar on the bottom left also disappears, the heading and top text have moved up and clipped inside the window, and the rest of the content in the right side disappears.
Similar to the base InternationalizedWizard App I placed the controls in a grid that has horizontal + vertical alignment set to stretch. The
<Border Background="White" Grid.Column="1" Grid.Row="0">
<ScrollViewer>
<HeaderedContentControl Content="{Binding Path=CurrentPage}" Header="{Binding Path=CurrentPage.DisplayName}" />
</ScrollViewer>
</Border>
I applied this style to the HeaderedContentControl:
<Style TargetType="{x:Type HeaderedContentControl}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type HeaderedContentControl}">
<StackPanel Margin="2,0">
<Grid Margin="1,1,1,12" RenderTransformOrigin="0.5,0.5">
<Rectangle Fill="{DynamicResource {x:Static SystemColors.AppWorkspaceBrushKey}}" Height="3" Margin="10,-4" Opacity="0.6" RadiusX="8" RadiusY="8" VerticalAlignment="Bottom" />
<ContentPresenter ContentSource="Header" TextBlock.FontSize="22" TextBlock.FontWeight="DemiBold" TextBlock.Foreground="Black" HorizontalAlignment="Center" VerticalAlignment="Center" OpacityMask="Black" />
<Grid.Effect>
<DropShadowEffect Opacity="0.1" />
</Grid.Effect>
<Grid.RenderTransform>
<RotateTransform Angle="0" />
</Grid.RenderTransform>
</Grid>
<Grid>
<Rectangle Fill="{TemplateBinding Background}" />
<ContentPresenter ContentSource="Content" />
</Grid>
</StackPanel>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
The scrollviewer only scrolls up and down if the content is large, but in this case the content should fit fine so as expected the user won't see the scrollviewer.
The image from the bottom left that strangely disappear was placed in the column 0, row 0 of the grid a custom margin so it remains in that area:
<Image Grid.Column="0" Grid.Row="0" Source="..\Assets\SplashLogo.png" HorizontalAlignment="Center" VerticalAlignment="Bottom" Stretch="None" Margin="20,20,20,20"/>
The first page (e.g. Welcome) that displays has another grid with two
<Grid>
<Grid.RowDefinitions>
<RowDefinition MinHeight="30" MaxHeight="60"/>
<RowDefinition Height="*" MinHeight="200"/>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Text="{x:Static res:Strings.SomeText_Description}" FontSize="15" FontWeight="Light" Margin="20,0,20,0" TextWrapping="Wrap" />
<StackPanel Grid.Row="1" Orientation="Horizontal" VerticalAlignment="Center" HorizontalAlignment="Center">
<Label Content="{x:Static res:Strings.WelcomeView_SomeText}" FontSize="15" FontWeight="Light" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="20,0,20,0" />
<TextBox Text="{Binding Path=SomeInput, UpdateSourceTrigger=PropertyChanged}" Height="25" Width="200" FontSize="15" FontWeight="Light" HorizontalAlignment="Left">
<TextBox.InputBindings>
<KeyBinding Key="Enter" Command="{Binding MoveNextFromWelcomeCommand}" CommandParameter="{Binding Path=Text, RelativeSource={RelativeSource AncestorType={x:Type TextBox}}}" />
</TextBox.InputBindings>
</TextBox>
</StackPanel>
</Grid>
But the contents of the stack panel completely disappear of view.
Finally, the bottom area of the main view is created in a border like this one, which also completely disappears from view:
<Border Grid.Column="0" Grid.Row="1" Background="LightGray" Grid.ColumnSpan="2">
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBlock Grid.Column="0" Grid.Row="1" Grid.ColumnSpan="5" Margin="4" FontSize="15" Text="{Binding Path=ReportStatus}" VerticalAlignment="Center" Visibility="{Binding Path=ShowReportStatus}" />
<!-- NAVIGATION BUTTONS -->
<Grid Grid.Column="2" Grid.Row="0" Grid.IsSharedSizeScope="True" HorizontalAlignment="Right" >
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
</Grid.ColumnDefinitions>
<Button Grid.Column="1" Grid.Row="0" Command="{Binding Path=MovePreviousCommand}" Style="{StaticResource movePreviousButtonStyle}" />
<Button Grid.Column="2" Grid.Row="0" Command="{Binding Path=MoveNextCommand}" Style="{StaticResource moveNextButtonStyle}" />
<Button Grid.Column="3" Grid.Row="0" Command="{Binding Path=CancelCommand}" Style="{StaticResource cancelButtonStyle}" />
</Grid>
</Grid>
</Border>
I initially thought there could be an issue with the version of .NET or OS, but my users has the latest version of Windows 10 Enterprise (10.0.17134) and dual screen with 1: 3840x2160 2: 2560x1600. I have tried to replicate that on my own computer but everything works fine for me. I also tested the App in Windows 7 and it works with no issues.
I really don't understand what could be happening, does it have anything to do with the user's DPI settings or any accessibility feature?
EDIT:
To make things a bit easier, this is the full code of the main view's xaml:
<UserControl x:Class="MyCompany.MyAppName.App.View.MyAppView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:MyCompany.MyAppName.App.View"
xmlns:viewModel="clr-namespace:MyCompany.MyAppName.App.ViewModel"
xmlns:view="clr-namespace:MyCompany.MyAppName.App.View"
xmlns:res="clr-namespace:MyCompany.MyAppName.App.Assets"
xmlns:util="clr-namespace:MyCompany.MyAppName.App.Utils"
mc:Ignorable="d"
x:Name="configuratorControl" d:DesignHeight="600" d:DesignWidth="600"
>
<UserControl.Resources>
<util:PercentageConverter x:Key="percentageConverter"/>
<DataTemplate DataType="{x:Type viewModel:ObjectSelectionViewModel}">
<view:ObjectSelectionPageView/>
</DataTemplate>
<DataTemplate DataType="{x:Type viewModel:CurrentObjectComponentsViewModel}">
<view:CurrentObjectComponentsView/>
</DataTemplate>
<DataTemplate DataType="{x:Type viewModel:CurrentObjectOptionsViewModel}">
<view:CurrentObjectOptionsView/>
</DataTemplate>
<DataTemplate DataType="{x:Type viewModel:SageFourViewModel}">
<view:SageFourView/>
</DataTemplate>
<DataTemplate DataType="{x:Type viewModel:SageThreeViewModel}">
<view:SageThreeView/>
</DataTemplate>
<DataTemplate DataType="{x:Type viewModel:ObjectViewModel}">
<view:MyNumberView/>
</DataTemplate>
<Style TargetType="{x:Type Button}">
<Setter Property="Padding" Value="3.5,0" />
<Setter Property="Margin" Value="3.5" />
<Setter Property="MinWidth" Value="80" />
<Setter Property="FontSize" Value="15"/>
<Setter Property="FontWeight" Value="Regular"/>
</Style>
<!-- This Style inherits from the Button style seen above. -->
<Style BasedOn="{StaticResource {x:Type Button}}" TargetType="{x:Type Button}" x:Key="moveNextButtonStyle">
<Setter Property="Content" Value="{x:Static res:Strings.MyAppView_Button_MoveNext}" />
<Style.Triggers>
<DataTrigger Binding="{Binding Path=IsOnLastPage}" Value="True">
<Setter Property="Content" Value="{x:Static res:Strings.SageThreeView_Confirm}" />
</DataTrigger>
<DataTrigger Binding="{Binding Path=IsOnCreateSageThreePage}" Value="True">
<Setter Property="Content" Value="{x:Static res:Strings.MyAppView_Button_CreateSageThree}" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style BasedOn="{StaticResource {x:Type Button}}" TargetType="{x:Type Button}" x:Key="cancelButtonStyle">
<Setter Property="Content" Value="{x:Static res:Strings.MyAppView_Button_Cancel}" />
<Style.Triggers>
<DataTrigger Binding="{Binding Path=IsOnLastPage}" Value="True">
<Setter Property="Content" Value="{x:Static res:Strings.MyAppView_Button_ExportPDF}" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style BasedOn="{StaticResource {x:Type Button}}" TargetType="{x:Type Button}" x:Key="movePreviousButtonStyle">
<Setter Property="Content" Value="{x:Static res:Strings.MyAppView_Button_MovePrevious}" />
</Style>
<!-- HEADERED CONTENT CONTROL STYLE -->
<Style TargetType="{x:Type HeaderedContentControl}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type HeaderedContentControl}">
<StackPanel Margin="2,0">
<Grid Margin="1,1,1,12" RenderTransformOrigin="0.5,0.5">
<Rectangle Fill="{DynamicResource {x:Static SystemColors.AppWorkspaceBrushKey}}" Height="3" Margin="10,-4" Opacity="0.6" RadiusX="8" RadiusY="8" VerticalAlignment="Bottom" />
<ContentPresenter ContentSource="Header" TextBlock.FontSize="22" TextBlock.FontWeight="DemiBold" TextBlock.Foreground="Black" HorizontalAlignment="Center" VerticalAlignment="Center" OpacityMask="Black" />
<Grid.Effect>
<DropShadowEffect Opacity="0.1" />
</Grid.Effect>
<Grid.RenderTransform>
<RotateTransform Angle="0" />
</Grid.RenderTransform>
</Grid>
<Grid>
<Rectangle Fill="{TemplateBinding Background}" />
<ContentPresenter ContentSource="Content" />
</Grid>
</StackPanel>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<DataTemplate x:Key="workflowStepTemplate">
<Border x:Name="bdOuter" BorderBrush="Black" BorderThickness="0,0,1,1" CornerRadius="12" Margin="1,1,1,12" Opacity="0.25" SnapsToDevicePixels="True">
<Border x:Name="bdInner" Background="White" BorderBrush="DarkBlue" BorderThickness="2,2,1,1" CornerRadius="12" Padding="2">
<TextBlock x:Name="txt" Margin="4,0,0,0" FontSize="15" FontWeight="Light" Text="{Binding Path=DisplayName}" />
</Border>
</Border>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding Path=IsCurrentPage}" Value="True">
<Setter TargetName="txt" Property="FontWeight" Value="SemiBold" />
<Setter TargetName="bdInner" Property="Background" Value="White" />
<Setter TargetName="bdOuter" Property="Opacity" Value="1" />
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>
</UserControl.Resources>
<Canvas HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="{Binding ActualWidth, ElementName=configuratorControl}" Height="{Binding ActualHeight, ElementName=configuratorControl}">
<Canvas x:Name="searchCanvas" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Panel.ZIndex="3" Width="{Binding ActualWidth, ElementName=configuratorControl}" Height="{Binding ActualHeight, ElementName=configuratorControl}" Visibility="{Binding SearchBoxVisibility}">
<Grid Panel.ZIndex="4" Width="{Binding ActualWidth, ElementName=searchCanvas}" Height="{Binding ActualHeight, ElementName=searchCanvas}">
<StackPanel Panel.ZIndex="4" Orientation="Vertical" Width="270" Height="70" VerticalAlignment="Center" HorizontalAlignment="Center" >
<StackPanel Orientation="Horizontal" >
<TextBlock Margin="5" FontSize="15" Text="Serial Number:" Width="100" Height="25" TextAlignment="Center" VerticalAlignment="Center" HorizontalAlignment="Center" />
<TextBox Text="{Binding MyNumber, UpdateSourceTrigger=PropertyChanged}" Margin="5" Width="150" Height="25" />
</StackPanel>
<DockPanel HorizontalAlignment="Stretch">
<Button Margin="5" Content="Dismiss" Width="100" HorizontalAlignment="Left" Command="{Binding DismissSearchDraftCommand}"/>
<Button Margin="5" Content="Search" Width="100" HorizontalAlignment="Right" Command="{Binding StartSearchDraftCommand}"/>
</DockPanel>
</StackPanel>
<Rectangle Panel.ZIndex="3" Fill="LightBlue" Width="300" Height="100" />
</Grid>
<Rectangle Panel.ZIndex="2" Fill="LightGray" Opacity="0.4" Canvas.Left="0" Canvas.Top="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="{Binding ActualWidth, ElementName=configuratorControl}" Height="{Binding ActualHeight, ElementName=configuratorControl}" />
</Canvas>
<Grid Background="#11000000" Margin="1" Panel.ZIndex="2" IsEnabled="{Binding GridResultsEnabled}" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Height="{Binding ActualHeight, ElementName=configuratorControl, Converter={StaticResource percentageConverter}, ConverterParameter=99.5}" Width="{Binding ActualWidth, ElementName=configuratorControl, Converter={StaticResource percentageConverter}, ConverterParameter=99.5}">
<Grid.BitmapEffect>
<BlurBitmapEffect Radius="{Binding GridBoxBlur}" KernelType="Box" />
</Grid.BitmapEffect>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="220" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="60" />
</Grid.RowDefinitions>
<!-- Workflow step listing -->
<HeaderedContentControl Header="{x:Static res:Strings.MyAppView_HeaderSteps}">
<ItemsControl ItemsSource="{Binding Path=Pages}" ItemTemplate="{StaticResource workflowStepTemplate}" />
</HeaderedContentControl>
<Button FontSize="15" Style="{StaticResource HyperLinkButtonStyle}" Margin="20,20,20,140" VerticalAlignment="Bottom" HorizontalAlignment="Center" Content="{x:Static res:Strings.MyAppView_Button_Search_Full}" Command="{Binding Path=OpenSearchFullCommand}"/>
<Button FontSize="15" Style="{StaticResource HyperLinkButtonStyle}" Margin="20,20,20,170" VerticalAlignment="Bottom" HorizontalAlignment="Center" Content="{x:Static res:Strings.MyAppView_Button_Search_Draft}" Command="{Binding Path=OpenSearchDraftCommand}"/>
<Button Margin="20,295,20,20" Command="{Binding Path=StartAgainCommand}" Content="{x:Static res:Strings.SageThreeView_StartAgain}" VerticalAlignment="Top" />
<Image Grid.Column="0" Grid.Row="0" Source="..\Assets\SplashLogo.png" HorizontalAlignment="Center" VerticalAlignment="Bottom" Stretch="None" Margin="20,20,20,20"/>
<!-- CURRENT PAGE AREA -->
<Border Background="White" Grid.Column="1" Grid.Row="0">
<ScrollViewer>
<HeaderedContentControl Content="{Binding Path=CurrentPage}" Header="{Binding Path=CurrentPage.DisplayName}" />
</ScrollViewer>
</Border>
<Border Grid.Column="0" Grid.Row="1" Background="LightGray" Grid.ColumnSpan="2">
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBlock Grid.Column="0" Grid.Row="1" Grid.ColumnSpan="5" Margin="4" FontSize="15" Text="{Binding Path=SageThreeStatus}" VerticalAlignment="Center" Visibility="{Binding Path=ShowSageThreeStatus}" />
<!-- NAVIGATION BUTTONS -->
<Grid Grid.Column="2" Grid.Row="0" Grid.IsSharedSizeScope="True" HorizontalAlignment="Right" >
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
</Grid.ColumnDefinitions>
<Button Grid.Column="1" Grid.Row="0" Command="{Binding Path=MovePreviousCommand}" Style="{StaticResource movePreviousButtonStyle}" />
<Button Grid.Column="2" Grid.Row="0" Command="{Binding Path=MoveNextCommand}" Style="{StaticResource moveNextButtonStyle}" />
<Button Grid.Column="3" Grid.Row="0" Command="{Binding Path=CancelCommand}" Style="{StaticResource cancelButtonStyle}" />
</Grid>
</Grid>
</Border>
</Grid>
</Canvas>
</UserControl>

WPF XAML returning PositiveInfinity as DesiredSize with vitalized warp panel

I needed to implement a third party solution for a vitalizing warp panel. The first two I tried didn't work because of this error message:
' ...should not return PositiveInfinity as its DesiredSize, even if
Infinity is passed in as available size.'
So next I went to a commercial solution which gave me the exact same error. So clearly there is something wrong with my code. But no matter what I try, the problem persists. To note, I tried the last solution with a basic example and that did indeed work.
I presume that one of my controls are the problem, perhaps needing to stipulate the dimensions, but, I have tried that on every relevant control. Below is the code. It is a ListBox inside a Grid using a data template.
<Grid x:Name="MainGrid" Background="#222">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
<RowDefinition Height="40" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="300" MinWidth="200" MaxWidth="400" />
<ColumnDefinition Width="*" MinWidth="200" />
<ColumnDefinition Width="400" MinWidth="270" MaxWidth="600" />
</Grid.ColumnDefinitions>
...
<!--#region Main Library Column-->
<ListBox x:Name="LibraryBox"
Grid.Column="1"
Grid.Row="0"
Grid.RowSpan="4"
Margin="20,10,20,10"
BorderBrush="Transparent"
Background="#1e1e1e"
ItemsSource="{Binding}"
ItemContainerStyle="{StaticResource ListBoxItemStyle}"
IsSynchronizedWithCurrentItem="True"
VirtualizingPanel.IsVirtualizing="True"
VirtualizingPanel.IsVirtualizingWhenGrouping="True"
VirtualizingPanel.IsContainerVirtualizable="True"
VirtualizingPanel.CacheLengthUnit="Page"
VirtualizingPanel.CacheLength="1,2"
VirtualizingPanel.VirtualizationMode="Standard"
VirtualizingPanel.ScrollUnit="Pixel"
ScrollViewer.IsDeferredScrollingEnabled="False"
ScrollViewer.HorizontalScrollBarVisibility="Disabled"
SelectionMode="Extended"
SelectionChanged="LibraryBox_SelectionChanged"
MouseDoubleClick="LibraryBox_MouseDoubleClick">
<ListBox.Resources>
<!--#region scrollbar style-->
<Style TargetType="{x:Type ScrollBar}">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Foreground" Value="#990000"/>
<Setter Property="Width" Value="25"/>
</Style>
<!--#region Not working...-->
<Style TargetType="{x:Type RepeatButton}">
<Setter Property="Background" Value="AliceBlue"/>
<Setter Property="Foreground" Value="Transparent"/>
<Setter Property="Width" Value="40"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type RepeatButton}">
<Border Background="Red" />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<!--#endregion-->
<!--#endregion-->
<SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Red"/>
<SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="Red"/>
</ListBox.Resources>
<ListBox.ContextMenu>
<ContextMenu>
<MenuItem Header="Edit" Click="ContextMenuItemEdit_Click"/>
<MenuItem Header="ComicVine Scraper" Click="MenuItemScraper_Click"/>
<Separator/>
<MenuItem Header="Delete" Click="ContextMenuItemDelete_Click"/>
</ContextMenu>
</ListBox.ContextMenu>
<!--#region Group Style-->
<ListBox.GroupStyle>
<GroupStyle>
<GroupStyle.ContainerStyle>
<Style TargetType="{x:Type GroupItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Expander IsExpanded="True">
<Expander.Header>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Name}"
FontWeight="Bold"
Foreground="#dbdbdb"
FontSize="16"
FontFamily="Cordia New"
VerticalAlignment="Bottom" />
<TextBlock Text="{Binding ItemCount}"
FontSize="16"
Foreground="#dbdbdb"
FontStyle="Italic"
Margin="10,0,0,0"
FontFamily="Cordia New"
VerticalAlignment="Bottom" />
</StackPanel>
</Expander.Header>
<ItemsPresenter />
</Expander>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</GroupStyle.ContainerStyle>
</GroupStyle>
</ListBox.GroupStyle>
<!--#endregion-->
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical">
<Viewbox Height="100" Width="70" Margin="2">
<Viewbox.LayoutTransform>
<ScaleTransform ScaleX="{Binding Value, ElementName=ZoomSlider}"
ScaleY="{Binding Value, ElementName=ZoomSlider}"/>
</Viewbox.LayoutTransform>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="300"/>
<ColumnDefinition Width="32"/>
</Grid.ColumnDefinitions>
<!--This is for thumbnails-->
<Image x:Name="coverImage"
Grid.Column="0"
Grid.Row="0"
Source="{Binding CoverPath, Converter={StaticResource UriToBitmapConverter}, IsAsync=True}"/>
<Rectangle x:Name="ReadMarkerBottom"
Grid.Column="1"
Grid.Row="1"
Margin="-16,0,0,0"
Fill="#fff"
Width="32"
Height="32"
Loaded="CoverImage_Loaded"/>
<Rectangle x:Name="ReadMarkerTop"
Grid.Column="1"
Grid.Row="1"
Margin="-16,0,0,0"
Fill="#000"
Width="30"
Height="30"
Loaded="CoverImage_Loaded"/>
</Grid>
</Viewbox>
<TextBlock TextTrimming="CharacterEllipsis"
TextAlignment="Center"
Width="120"
Foreground="#dbdbdb"
Background="Transparent"
Margin="0,0,0,5"
Loaded="Text_Loaded"
FontFamily="Cordia New"
FontWeight="Bold">
</TextBlock>
<TextBlock TextTrimming="CharacterEllipsis"
TextAlignment="Center"
Width="120"
Foreground="#dbdbdb"
Background="Transparent"
Margin="0,0,0,5"
Loaded="IssueNumer_Loaded"
FontFamily="Cordia New"/>
<TextBlock TextTrimming="CharacterEllipsis"
TextAlignment="Center"
Width="120"
Foreground="#dbdbdb"
Background="Transparent"
Margin="0,0,0,5"
Loaded="CountStack_Loaded"
FontFamily="Cordia New"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<extendedPanelControls:BinaryVirtualizingWrapPanel
AutoUpdateViewportOnDetectingTransactionalUpdatesToDataSource="True"
ItemPositioningMode="Greedy"
IsItemsHost="True"
Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
<!--#endregion-->

The answer was to set the MaxHeight on the <ItemsPresenter /> inside the GroupStyle so it new it was not going to go on forever

Setting rounded corners to Windows view

I'm trying to add rounded windows so that view looks from this:
To this:
There are a few similar questions online that say change the WindowStyle to None and AllowsTransparency=True with a Border tag as seen below.
<Window x:Class="SIDD.EmailComposerWindow"
...
Height="460.316"
Width="733.167"
WindowStartupLocation="CenterScreen"
WindowStyle="None"
AllowsTransparency="True"
ResizeMode="CanResize"
<Border Background="White" BorderBrush="Black" BorderThickness="1,1,1,1" CornerRadius="30,30,30,30">
<Grid>
</Grid>
</Border>
>
<Window.Background>
<SolidColorBrush Opacity="0" />
</Window.Background>
<WindowChrome.WindowChrome>
<WindowChrome CaptionHeight="{Binding ActualHeight,ElementName=TitleBar}"
GlassFrameThickness="0"
/>
</WindowChrome.WindowChrome>
<Window.DataContext>
<localvm:EmailComposerViewModel />
</Window.DataContext>
<Window.Style>
<Style TargetType="{x:Type Window}">
<Setter Property="Background" Value="{StaticResource WindowBrush}"/>
</Style>
</Window.Style>
<Window.Resources>
<SolidColorBrush x:Key="WindowBrush" Color="White"/>
<Style x:Key="VerticalSeparatorStyle"
TargetType="{x:Type Separator}"
BasedOn="{StaticResource {x:Type Separator}}">
<Setter Property="Margin" Value="6,0,6,0"/>
<Setter Property="LayoutTransform">
<Setter.Value>
<TransformGroup>
<TransformGroup.Children>
<TransformCollection>
<RotateTransform Angle="90"/>
</TransformCollection>
</TransformGroup.Children>
</TransformGroup>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="ButtonLinkStyle" TargetType="Button">
<Setter Property="Background" Value="Transparent" />
<Setter Property="Margin" Value="2,4,2,4" />
<Setter Property="IsTabStop" Value="False" />
<Setter Property="Cursor" Value="Hand" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="OverridesDefaultStyle" Value="True" />
<Setter Property="Foreground" Value="Blue" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border Name="border" BorderThickness="0" BorderBrush="Transparent">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="BorderBrush" TargetName="border" Value="White"/>
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter Property="Foreground" Value="DarkGoldenrod"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<BooleanToVisibilityConverter x:Key="BoolToVis"/>
<Style x:Key="SearchButton" TargetType="{x:Type Button}">
<Setter Property="Background" Value="Transparent" />
<Setter Property="Margin" Value="2,4,2,4" />
<Setter Property="IsTabStop" Value="False" />
<Setter Property="Cursor" Value="Hand" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="OverridesDefaultStyle" Value="True" />
<Setter Property="Foreground" Value="Blue" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="border" BorderThickness="0" BorderBrush="Transparent">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="BorderBrush" TargetName="border" Value="White"/>
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter Property="Foreground" Value="DarkGoldenrod"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Image x:Key="SearchIcon" Source="../Images/Search.png" Height="15px" Width=" 15px"/>
<Image x:Key="ResetIcon" Source="../Images/CancelX.png" Height="15px" Width="15px"/>
<Style x:Key="PaneBorderStyle" TargetType="{x:Type Border}">
<Setter Property="CornerRadius" Value="10,10,10,10"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="Margin" Value="0,0,0,0"/>
<Setter Property="Background" Value="WhiteSmoke"/>
</Style>
</Window.Resources>
<!-- Content Layout -->
<DockPanel Margin="10,10,10,10">
<!-- Header -->
<Border Background="Blue" Style="{DynamicResource PaneBorderStyle}" CornerRadius="15,15,0,0">
<Grid>
<TextBlock HorizontalAlignment="Stretch" Margin="0,0,0,0" Name="textBlock_From" Width="283" />
</Grid>
</Border>
<!-- Body -->
<Grid DockPanel.Dock="Top">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="77*"/>
<ColumnDefinition Width="64*"/>
<ColumnDefinition Width="141*"/>
<ColumnDefinition Width="140*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition />
</Grid.RowDefinitions>
<!-- Left panel -->
<Border Style="{DynamicResource PaneBorderStyle}" Margin="0,0,0,0" Grid.ColumnSpan="2" >
<DockPanel VerticalAlignment="Top">
<StackPanel Orientation="Horizontal" DockPanel.Dock="Top">
<Label VerticalAlignment="Center" Content="Email from:" Opacity="0.6" FontFamily="Levenim MT" Width="100" />
<TextBox BorderThickness="0" IsReadOnly="True" Background="Transparent" VerticalAlignment="Center" Text="{Binding Ticket.CustomerName}" />
</StackPanel>
<StackPanel Orientation="Horizontal" DockPanel.Dock="Top">
<Label Content="Case:" OpacityMask="Black" Opacity="0.6" FontFamily="Levenim MT" Width="100" />
<TextBox BorderThickness="0" IsReadOnly="True" Background="Transparent" VerticalAlignment="Center" Text="{Binding Ticket.CaseDetails}" />
</StackPanel>
<StackPanel Orientation="Horizontal" VerticalAlignment="Top" DockPanel.Dock="Top">
<Label Content="Account Details:" Opacity="0.6" FontFamily="Levenim MT" Width="100" />
<TextBox BorderThickness="0" IsReadOnly="True" Background="Transparent" VerticalAlignment="Center" Text="{Binding Ticket.AccountInfo}" />
</StackPanel>
<StackPanel Orientation="Horizontal" DockPanel.Dock="Top">
<Label Content="Date:" Opacity="0.6" FontFamily="Levenim MT" Width="100" />
<TextBox BorderThickness="0" IsReadOnly="True" Background="Transparent" VerticalAlignment="Center" Text="{Binding Ticket.MessageDate}" />
</StackPanel>
<Rectangle Fill="#FFF4F4F5" Stroke="Black" DockPanel.Dock="Top" Opacity="0.2" Margin="0,5,0,5"/>
<TextBox BorderThickness="0" IsReadOnly="True" Background="Transparent" Text="{Binding Ticket.MessageContent}" TextWrapping="Wrap" DockPanel.Dock="Top" />
</DockPanel>
</Border>
<!-- Center panel -->
<Border Style="{DynamicResource PaneBorderStyle}" CornerRadius="10,0,0,10" Grid.Column="2" Background="White" Width="Auto">
<DockPanel LastChildFill="True">
<StackPanel Orientation="Horizontal" DockPanel.Dock="Top">
<Label VerticalAlignment="Center" Content="To" Opacity="0.6" FontFamily="Levenim MT" Margin="5,0,0,0" />
<TextBox BorderThickness="0" IsReadOnly="True" Background="#E8F2FF" Text="{Binding Ticket.CustomerEmailAddress}" FontSize="12" VerticalAlignment="Center" />
</StackPanel>
<Rectangle Fill="#FFF4F4F5" Stroke="Black" DockPanel.Dock="Top" Opacity="0.2"/>
<StackPanel Orientation="Horizontal" DockPanel.Dock="Top">
<Label Content="Subject" Opacity="0.6" FontFamily="Levenim MT" Margin="5,0,0,0"/>
<TextBox BorderThickness="0" IsReadOnly="True" Background="Transparent" VerticalAlignment="Center" Text="{Binding Ticket.Subject}" />
</StackPanel>
<Rectangle Fill="#FFF4F4F5" Stroke="Black" DockPanel.Dock="Top" Opacity="0.2"/>
<ToolBar Margin="2" Background="LightGray" DockPanel.Dock="Top" Visibility="Collapsed">
<Button>1</Button>
<Button>2</Button>
<Button>3</Button>
<Button>4</Button>
<ComboBox SelectedIndex="0">
<ComboBoxItem>Style1</ComboBoxItem>
<ComboBoxItem>Style2</ComboBoxItem>
<ComboBoxItem>Style3</ComboBoxItem>
</ComboBox>
<Button>5</Button>
<Button>6</Button>
<Separator />
<Button>7</Button>
<Button>8</Button>
<Separator />
<Button>9</Button>
<Button>10</Button>
</ToolBar>
<RichTextBox Name="EditMessageBox" Margin="5,0,5,5" DockPanel.Dock="Top" Height="auto" BorderThickness="5" BorderBrush="{x:Null}" Background="White">
<RichTextBox.Resources>
<Style TargetType="{x:Type Paragraph}">
<Setter Property="Margin" Value="0" />
</Style>
</RichTextBox.Resources>
</RichTextBox>
</DockPanel>
</Border>
<!-- Right panel -->
<Border Style="{DynamicResource PaneBorderStyle}" CornerRadius="0,10,10,0" Grid.Column="3">
<Grid Margin="2">
<DockPanel LastChildFill="True" RenderTransformOrigin="0.5,0.5">
<!-- suggestions -->
<Label Content="SUGGESTIONS" HorizontalAlignment="Left" DockPanel.Dock="Top" FontFamily="Levenim MT" Margin="0" Width="90.277" Opacity="0.6" />
<!-- snippet list -->
<Grid Height="Auto" x:Name="SnippetViewGrid">
<StackPanel x:Name="AccordianStack" Margin="0,0,0,10">
<!--Snippet Categories-->
<ItemsControl ItemsSource="{Binding ObservableSnippetCategories}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<custom:Accordian x:Name="Accordian" ButtonClick="Accordian_ButtonClick"
TemplateSelectCommand="{Binding TemplateSelectCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:EmailComposerWindow}}}"
TemplateShowCommand="{Binding TemplateShowCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:EmailComposerWindow}}}">
</custom:Accordian>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Vertical"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
</StackPanel>
</Grid>
</DockPanel>
<!-- Searchbar -->
<DockPanel Margin="5,5,5,5" LastChildFill="True" Height="35.667" VerticalAlignment="Bottom">
<Border Margin="0,4,0,0" Width="Auto" CornerRadius="5,5,5,5" Background="White" BorderThickness="1" BorderBrush="Gray">
<Grid>
<Button x:Name="SearchTemplateButton" Content="{StaticResource SearchIcon}"
Command="{Binding SearchTemplatesCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:EmailComposerWindow}}}"
CommandParameter="{Binding Text, ElementName=SearchKey}"
Style="{StaticResource ButtonLinkStyle}" Opacity="0.5" HorizontalAlignment="Left" VerticalAlignment="Center"
/>
<TextBox x:Name="SearchKey" Text="" BorderThickness="0" Width="Auto" Background="White" Margin="21.724,4,20.999,4">
<TextBox.InputBindings>
<KeyBinding Key="Enter"
Command="{Binding SearchTemplatesCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:EmailComposerWindow}}}"
CommandParameter="{Binding Text, ElementName=SearchKey}"
/>
<KeyBinding Key="Esc"
Command="{Binding ResetSearchCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:EmailComposerWindow}}}"
/>
</TextBox.InputBindings>
</TextBox>
<Button x:Name="ResetSearchButton" Content="{StaticResource ResetIcon}"
Command="{Binding ResetSearchCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:EmailComposerWindow}}}"
Style="{DynamicResource SearchButton}" Opacity="0.5" Width="18.999" Height="Auto"
Margin="0,4,2,4" HorizontalAlignment="Right" VerticalAlignment="Center"
/>
</Grid>
</Border>
</DockPanel>
</Grid>
</Border>
</Grid>
</DockPanel>
However, with this added code, I get the error The property content is set more than once for the following code:
<!-- Header -->
<Border Background="Transparent" DockPanel.Dock="Top" x:Name="TitleBar">
<DockPanel LastChildFill="True" Margin="0,0" HorizontalAlignment="Center" DockPanel.Dock="Top" Height="20">
</DockPanel>
</Border>
Does anyone know why this is?

You have set twice the window style here:
<Window.Style>
<Style TargetType="{x:Type Window}">
<Setter Property="Background" Value="{StaticResource WindowBrush}"/>
</Style>
And here:
WindowStyle="None"
I'm not close to a VS right now but it seems to be the problem.

Blurry Adorner WPF Xaml

I cannot for the life of me figure this out, using the same control template I get a blurry Adorner on one Element in my panel:
Control Template:
<ControlTemplate x:Key="validationErrorTemplateBubble" >
<DockPanel >
<Grid DockPanel.Dock="Bottom" Margin="10,0,0,0" >
<Grid.Effect>
<DropShadowEffect ShadowDepth="2" Direction="315" />
</Grid.Effect>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Border Grid.Row="1" BorderBrush="Gray" BorderThickness="1" CornerRadius="5" Margin="0,-1.6,0,0">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFE7E8F1" Offset="1"/>
<GradientStop Color="White"/>
<GradientStop Color="#FFF3F4F6" Offset="0.472"/>
</LinearGradientBrush>
</Border.Background>
<Grid>
<WrapPanel VerticalAlignment="Center" Margin="5,5,10,5">
<Image Source="/Sesam;component/Modules/Images/wrongsmall.png" Height="15" Width="15" />
<TextBlock Foreground="Red" FontSize="12" Margin="5,0,0,0" Text="{Binding ElementName=ErrorAdorner, Path=AdornedElement.(Validation.Errors).CurrentItem.ErrorContent}" />
</WrapPanel>
<ContentPresenter Margin="5" Grid.Column="1" Grid.Row="1"/>
</Grid>
</Border>
<Path Data="M306.375,133.125L306.375,100.875L335.75,133.25" Stroke="Gray" Height="15" Fill="White" StrokeThickness="1" Stretch="Uniform" Margin="10,0,0,0" HorizontalAlignment="Left" VerticalAlignment="Center"/>
</Grid>
<AdornedElementPlaceholder x:Name="ErrorAdorner" />
</DockPanel>
Non-Blury Text Box Code:
<TextBox BorderThickness="0" VerticalAlignment="Center" Width="150" Padding="3" Margin="8,0,0,0" Foreground="{StaticResource myDarkBlue}" Text="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListView}}, Path=DataContext.encTypeValidation, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Validation.ErrorTemplate="{StaticResource validationErrorTemplateBubble}" HorizontalAlignment="Left" >
<TextBox.Style>
<Style TargetType="{x:Type TextBox}">
<Setter Property="Visibility" Value="Collapsed" />
<Style.Triggers>
<MultiDataTrigger>
<MultiDataTrigger.Conditions>
<Condition Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListViewItem}}, Path=IsSelected}" Value="True" />
<Condition Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListView}}, Path=DataContext.editClicked}" Value="True" />
</MultiDataTrigger.Conditions>
<Setter Property="Visibility" Value="Visible" />
</MultiDataTrigger>
</Style.Triggers>
</Style>
</TextBox.Style>
Blurry TextBox Code:
<Grid>
<WrapPanel>
<TextBox x:Name="tbox" Text="{Binding encTypeValidation, Mode=OneWayToSource, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" Foreground="{StaticResource myTextBoxColor}" Validation.ErrorTemplate="{StaticResource validationErrorTemplateBubble}" PreviewMouseDown="tbox_PreviewMouseDown" Width="200" >
<TextBox.InputBindings>
<MouseBinding Gesture="LeftClick" Command="{Binding addBoxClicked}" />
</TextBox.InputBindings>
</TextBox>
</WrapPanel>
</Grid>
Something about the way it renders, the first (non blury) is within a "ListViewItem" Control Template, the other is a userControl..
Any ideas?
FIXED
Fixed by adding UseLayoutRounding="True" to parent Control ie: ContentControl!
Thank you Aybe!
<Grid Grid.Row="2" Background="{StaticResource myLightGrey}" >
<Border BorderBrush="{StaticResource myLightGrey}" BorderThickness="0,1,1,0">
<ContentControl x:Name="AddPanel" VerticalAlignment="Center" HorizontalAlignment="Center" UseLayoutRounding="True"/>
</Border>
</Grid>

Adding UseLayoutRounding="True" to the parent container control solves the rendering issue.