Raise exception from button click event

   
  

<Window x:Class="DispatcherUnhandledExceptionSample.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="DispatcherUnhandledException Sample" Height="300" Width="300">
  <StackPanel>
    <Button Name="raiseRecoverableException" Click="raiseRecoverableException_Click">Raise Recoverable Exception</Button>
    <Button Name="raiseUnrecoverableException" Click="raiseUnecoverableException_Click">Raise Unrecoverable Exception</Button>
  </StackPanel>
</Window>

//File:MainWindow.xaml.cs
using System;
using System.Windows;

namespace DispatcherUnhandledExceptionSample
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
        void raiseRecoverableException_Click(object sender, RoutedEventArgs e)
        {
            throw new DivideByZeroException("Recoverable Exception");
        }

        void raiseUnecoverableException_Click(object sender, RoutedEventArgs e)
        {
            throw new ArgumentNullException("Unrecoverable Exception");
        }
    }
}