WPF application shutdown mode

 

There are three shutdown Modes

Member name	Description
Onlastwindowclose	An application shuts down when either the last window closes, or shutdown is called.
Onmainwindowclose	An application shuts down when either the main window closes, or shutdown is called.
Onexplicitshutdown	An application shuts down only when shutdown is called.

Onmainwindowclose is useful, but you must first know how to specify mainwindow.

Two ways to specify mainwindow:

1. InCodeSpecified in

 

///   <Summary>
/// Interaction logic for app. XAML
///   </Summary>
Public APP ()
{
Window oldmainwindow =   This . Mainwindow; // Get Main Window

Window newmainwindow =   New Window1 ();
This . Mainwindow =   New Window (); // Set mainwindow
}

 

2. Specify

 

 

< Application
Xmlns = "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"
Xmlns: x = "Http://schemas.microsoft.com/winfx/2006/xaml"
Startupuri = "Startupwindow. XAML"
>
< Application. mainwindow >
< Navigationwindow Source = "Mainpage. XAML" Visibility = "Visible" > </ Navigationwindow >
</ Application. mainwindow >
</ Application >

 

Configure shutdown mode
Here we select onmainwindowclose:

< Application X: Class = "Testapplication. app"
Xmlns = "Http://schemas.microsoft.com/winfx/2006/xaml/presentation%22
Xmlns: x =" Http://schemas.microsoft.com/winfx/2006/xaml%22
Startupuri = "Window1.xaml"  
Shutdownmode = "Onmainwindowclose"
>
</ Application >