Application.Exit Event

Occurs just before an application shuts down and cannot be canceled.

Namespace:  System.Windows
Assembly:  System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public Event Exit As EventHandler
public event EventHandler Exit
<Application Exit="eventhandler"/>

Remarks

You can detect when an application shuts down by handling the Exit event. This allows your application to perform common application shutdown tasks, including saving data for the next application session and logging.

Important noteImportant Note:

An Exit event handler should not include long-running, re-entrant, or cyclic code, such as resetting the Silverlight plug-in's Source property.

Examples

The following code shows how to handle Exit using markup and code-behind.

<Application 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    x:Class="SilverlightApplication.App"
    Startup="App_Startup"
    Exit="App_Exit">

</Application>
Partial Public Class App
    Inherits Application

    Public Sub New()
        InitializeComponent()
    End Sub

    Private Sub App_Startup(ByVal o As Object, ByVal e As StartupEventArgs) Handles Me.Startup
        ' The application has started.
    End Sub

    Private Sub App_Exit(ByVal o As Object, ByVal e As EventArgs) Handles Me.Exit
        ' The application is about to stop running.
    End Sub

End Class
using System; // EventArgs
using System.Windows; // Application

namespace SilverlightApplication
{
    public partial class App : Application
    {
        public App()
        {
            InitializeComponent();
        }

        private void App_Startup(object sender, StartupEventArgs e)
        {
            // The application has started.
        }

        private void App_Exit(object sender, EventArgs e)
        {
            // The application is about to stop running.
        }
    }
}

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.