Application.Exit Event (System.Windows)

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Exit Event

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This page is specific to

Microsoft Silverlight 3

Other versions are also available for the following:

.NET Framework Class Library for Silverlight

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

Visual Basic (Declaration)

Public Event Exit As EventHandler

Visual Basic (Usage)

Dim instance As Application
Dim handler As EventHandler

AddHandler instance.Exit, handler

public event EventHandler Exit

XAML Attribute Usage

<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 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.

XAML

<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>

Visual Basic

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.
        }
    }
}

Platforms

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

Reference

Application Class

Application Members

System.Windows Namespace

Startup

IsolatedStorageFile