WPF

public partial class App : Application
{
    public App()
    {
    }

    private void Application_Startup(object sender, StartupEventArgs e)
    {
        Application.Current.DispatcherUnhandledException += dispatchUnhandled;
        AppDomain.CurrentDomain.UnhandledException += applicationUnhandledException;
    }

    private void dispatchUnhandled(object sender, DispatcherUnhandledExceptionEventArgs e)
    {
        var errorMessage = getInnerException(e.Exception);

        displayErrorMessage(errorMessage, e.Exception);
        e.Handled = true;
    }

    private static void applicationUnhandledException(object sender, UnhandledExceptionEventArgs e)
    {
        var ex = e.ExceptionObject as Exception;
        var errorMessage = getInnerException(ex);

        displayErrorMessage(errorMessage, ex);
    }

    private static void displayErrorMessage(string errorMessage, Exception ex)
    {
        logException(errorMessage, ex);

        ErrorHandlerViewModel vm = new ErrorHandlerViewModel();
        vm.ErrorMessage = errorMessage;
        vm.ErrorText = ex.ToString();

        ErrorHandlerView view = new ErrorHandlerView();
        view.DataContext = vm;
        view.ShowDialog();

        Application.Current.Shutdown();
    }

    private static string getInnerException(Exception e)
    {
        string msg = e.InnerException == null ? e.Message : getInnerException(e.InnerException);
        return msg;
    }

    private static void logException(string errorMessage, Exception ex)
    {
        Logger.LogMessage(errorMessage);
        Logger.LogMessage(ex.ToString());
    }
}

<ListBox Grid.Column="0"
            x:Name="categoryList"
            BorderBrush="LightGray"
            BorderThickness="0,0,1,0"
            ItemsSource="{Binding Categories}"
            ScrollViewer.VerticalScrollBarVisibility="Hidden"
            IsEnabled="False"
            Background="White"
            Width="100"
            Margin="0,-2,0,0">

<pre>
<ListBox.Style>
    <Style TargetType="{x:Type ListBox}">
        <Style.Triggers>
            <Trigger Property="IsEnabled" Value="False">
                <Setter Property="Background" Value="White" />
            </Trigger>
        </Style.Triggers>
    </Style>
</ListBox.Style>

<ListBox.ItemContainerStyle>
    <Style TargetType="{x:Type ListBoxItem}">
        <Setter Property="Height" Value="{Binding Path=DataContext.ListItemHeight, RelativeSource={RelativeSource AncestorType=Grid}}"/>
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="BorderBrush" Value="LightGray"/>
        <Setter Property="BorderThickness" Value="0,0,0,1"/>
        <Style.Triggers>
            <Trigger Property="IsEnabled" Value="false">
                <Setter Property="Foreground" Value="SteelBlue"/>
                <Setter Property="Background" Value="White"/>
            </Trigger>
        </Style.Triggers>
    </Style>
</ListBox.ItemContainerStyle>

<ListBox.ItemTemplate>
    <DataTemplate>
        <TextBlock Text="{Binding CategoryName}"
                    VerticalAlignment="Center"
                    FontSize="16"
                    Margin="10,0,0,0"/>
    </DataTemplate>
</ListBox.ItemTemplate>

private void sizeChanged(object sender, SizeChangedEventArgs e)
{
    ListItemHeight = Math.Floor(this.ActualHeight / (Categories.Count + 1));
}

using System.Configuration.Assemblies;
[assembly: AssemblyAlgorithmId(AssemblyHashAlgorithm.SHA512)]

<Style x:Key="RoundedButton" TargetType="{x:Type Button}" BasedOn="{StaticResource {x:Type Button}}">
    <Setter Property="Background"  Value="{StaticResource GreenGradientBrush}"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Button}">
                <Grid>
                    <Rectangle Fill="{TemplateBinding Background}" RadiusX="8" RadiusY="8" />
                    <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" RecognizesAccessKey="True" />
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
    <Style.Triggers>
        <Trigger Property="Button.IsFocused" Value="true">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type Button}">
                        <Grid>
                            <Rectangle Fill="{TemplateBinding Background}" Stroke="Black" StrokeThickness="4" RadiusX="8" RadiusY="8" />
                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" RecognizesAccessKey="True" />
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Trigger>
        <Trigger Property="Button.IsMouseOver" Value="true">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type Button}">
                        <Grid>
                            <Rectangle Fill="{TemplateBinding Background}" Stroke="Transparent" StrokeThickness="3" RadiusX="8" RadiusY="8" />
                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" RecognizesAccessKey="True" />
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Trigger>
        <Trigger Property="Button.IsEnabled" Value="false">
            <Setter Property="Background"   Value="{StaticResource GrayGradientBrush}"/>
        </Trigger>
    </Style.Triggers>
</Style>

<Style x:Key="RoundedButton" TargetType="{x:Type Button}" BasedOn="{StaticResource {x:Type Button}}">
    <Setter Property="Background"  Value="{StaticResource GreenGradientBrush}"/>
    <Setter Property="BorderBrush" Value="Transparent" />
    <Setter Property="BorderThickness" Value="0" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Button}">
                <Grid>
                    <Rectangle Fill="{TemplateBinding Background}" Stroke="{TemplateBinding BorderBrush}" StrokeThickness="{TemplateBinding BorderThickness}" RadiusX="8" RadiusY="8" />
                    <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" RecognizesAccessKey="True" />
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
    <Style.Triggers>
        <Trigger Property="Button.IsFocused" Value="true">
            <Setter Property="BorderBrush" Value="Black"/>
            <Setter Property="BorderThickness" Value="10" />
        </Trigger>
        <Trigger Property="Button.IsMouseOver" Value="true">
            <Setter Property="BorderBrush" Value="Yellow"/>
            <Setter Property="BorderThickness" Value="10" />
        </Trigger>
        <Trigger Property="Button.IsEnabled" Value="false">
            <Setter Property="Background"   Value="{StaticResource GrayGradientBrush}"/>
        </Trigger>
    </Style.Triggers>
</Style>

<Window x:Class="Blah.MyApp.UI.Desktop.MainWindow.MainWindowView"
        x:Name="mainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:mw="clr-namespace:DFT.Falcon6.UI.Desktop.MainWindow"
        xmlns:t="clr-namespace:DFT.Falcon6.UI.Desktop.Controls.Timeline"
        xmlns:conn="clr-namespace:DFT.Falcon6.UI.Desktop.Controls.Connection"
        xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
        Title="{Binding WindowTitle}" 
        WindowStartupLocation="CenterScreen"
        Height="600" 
        Width="800">

<pre>
<i:Interaction.Triggers>
    <i:EventTrigger EventName="Closing">
        <i:InvokeCommandAction Command="{Binding CloseWindowCommand}" />
    </i:EventTrigger>

The property 'Command' was not found in type 'InvokeCommandAction'