WPF implementations perform certain logic when a computer restarts or shuts down

The Sessionending event of the application class is the response when the computer shuts down or restarts (session end event),

So just add sessionending to the App.xaml.

<x:class= "Drivereasywpf.app"             xmlns= "http// Schemas.microsoft.com/winfx/2006/xaml/presentation "             xmlns:x="/http/ Schemas.microsoft.com/winfx/2006/xaml "             StartupUri=" MainWindow.xaml "  Startup= "Application_Startup"  sessionending= "Application_sessionending" >

View Code

And this is done in the background code:

private void Application_sessionending (object sender, SessionEndingCancelEventArgs e)        {             //your code        }

View Code

But Windows has no sessionending event, so if you want to listen to a computer shutdown or restart in a window,

Because the application class is used throughout the WPF project, in the background code of the other windows, such calls can be:

Public MainWindow ()        {            InitializeComponent ();             App.Current.SessionEnding + = current_sessionending;        }              private void Current_sessionending (object sender, SessionEndingCancelEventArgs e)        {            throw new NotImplementedException ();        }

View Code

Through the App. Current. sessionending + = current_sessionending;

WPF implementations perform certain logic when a computer restarts or shuts down