StabilityMatrix/StabilityMatrix/ExceptionWindow.xaml

<ui:FluentWindow
    ExtendsContentIntoTitleBar="True"
    Height="500"
    Loaded="ExceptionWindow_OnLoaded"
    ResizeMode="NoResize"
    Title="Unexpected Application Error"
    Width="800"
    WindowStartupLocation="CenterOwner"
    mc:Ignorable="d"
    ui:Design.Background="{DynamicResource ApplicationBackgroundBrush}"
    ui:Design.Foreground="{DynamicResource TextFillColorPrimaryBrush}"
    x:Class="StabilityMatrix.ExceptionWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:i="http://schemas.microsoft.com/xaml/behaviors"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:ui="http://schemas.lepo.co/wpfui/2022/xaml"
    xmlns:viewModels="clr-namespace:StabilityMatrix.ViewModels"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:converters="clr-namespace:StabilityMatrix.Converters">

    <Window.DataContext>
        <viewModels:ExceptionWindowViewModel />
    </Window.DataContext>

    <Window.Resources>
        <converters:NullToVisibilityConverter x:Key="NullToVisibilityConverter" />
        <Style TargetType="TextBlock" x:Key="Label">
            <Setter Property="FontWeight" Value="Bold" />
            <Setter Property="Margin" Value="0,8,0,4" />
            <Setter Property="TextWrapping" Value="Wrap" />
        </Style>
        <Style TargetType="TextBlock" x:Key="Content">
            <Setter Property="Margin" Value="0,4,0,8" />
            <Setter Property="TextWrapping" Value="Wrap" />
        </Style>
    </Window.Resources>

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="auto" />
            <RowDefinition Height="*" />
            <RowDefinition Height="auto" />
        </Grid.RowDefinitions>

        <ui:TitleBar Background="DarkOrange">
            <ui:TitleBar.Header>
                <TextBlock Margin="16,8" Text="Unexpected error" />
            </ui:TitleBar.Header>
        </ui:TitleBar>

        <Grid Grid.Row="1">
            <Grid.RowDefinitions>
                <RowDefinition Height="auto" />
                <RowDefinition Height="*" />
                <RowDefinition Height="auto" />
            </Grid.RowDefinitions>
            <!--  Info  -->
            <TextBlock
                FontSize="14"
                Grid.Row="0"
                Margin="16"
                Text="An unexpected error occured."
                TextWrapping="Wrap"
                VerticalAlignment="Top" />

            <!--  Exception details  -->
            <Expander Grid.Row="1"
                      VerticalAlignment="Top"
                      Header="{Binding ExceptionType, Mode=OneWay, TargetNullValue=-, FallbackValue=Unknown Exception}"
                      IsExpanded="True"
                      Padding="12,12,12,12"
                      Margin="16,0,16,0">
                <ScrollViewer VerticalScrollBarVisibility="Auto" MaxHeight="250">
                    <StackPanel>
                        <!--  Exception Message  -->
                        <TextBlock Style="{StaticResource Label}" Text="Details" />
                        <TextBlock Style="{StaticResource Content}"
                                   Text="{Binding Exception.Message, Mode=OneWay, TargetNullValue=-}" />
                        <!--  Callstack  -->
                        <TextBlock Style="{StaticResource Label}" Text="Callstack" />
                        <TextBlock Style="{StaticResource Content}"
                                   Text="{Binding Exception.StackTrace, Mode=OneWay, TargetNullValue=-}" />
                        <!--  Inner exception  -->
                        <TextBlock Style="{StaticResource Label}" 
                                   Visibility="{Binding Exception.InnerException, Converter={StaticResource NullToVisibilityConverter}}"
                                   Text="Inner exception" />
                        <TextBlock Style="{StaticResource Content}"
                                      Visibility="{Binding Exception.InnerException, Converter={StaticResource NullToVisibilityConverter}}"
                                   Text="{Binding Exception.InnerException, Mode=OneWay, TargetNullValue=-}" />
                    </StackPanel>
                </ScrollViewer>
            </Expander>
            <!--  Close Button  -->
            <Button
                Content="Exit Application"
                Grid.Row="2"
                HorizontalAlignment="Right"
                Margin="16"
                Padding="8">
                <i:Interaction.Triggers>
                    <i:EventTrigger EventName="Click">
                        <i:CallMethodAction MethodName="Close"
                                            TargetObject="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Window}}" />
                    </i:EventTrigger>
                </i:Interaction.Triggers>
            </Button>
        </Grid>
    </Grid>

</ui:FluentWindow>