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Throw Application event from button click event handler

<Window x:Class="PreventSessionEnd.Window1"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     Title="PreventSessionEnd" Height="300" Width="300"     >     <Grid Margin="5">       <Button Click="cmdException_Click">Throw an Unhandled Exception</Button>     </Grid> </Window> //File:Window.xaml.cs using System; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Shapes; namespace PreventSessionEnd {     public partial class Window1 : Window     {         public Window1()         {             InitializeComponent();         }         private void cmdException_Click(object sender, RoutedEventArgs e)         {             throw new ApplicationException("You clicked a bad button.");                         }     } }