Question

Here’s the XAML code:

<Application x:Class="WpfApplication2.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             Startup="Application_Startup" />

Backing code:

using System.Windows;

namespace WpfApplication2
{
    public partial class App : Application
    {
        private void Application_Startup(object sender, StartupEventArgs e)
        {
            new Window().ShowDialog();
            new Window().ShowDialog();
        }
    }
}

Window shows only one time and then application exits. Why??

UPDATE: I know that windows should show up consequently. But after I close first window second does not show up at all

Answer 1

Try this

    private void Application_Startup(object sender, StartupEventArgs e)
    {
        var w1 = new Window();
        var w2 = new Window();

        w1.ShowDialog();
        w2.ShowDialog();
    }

Paste form comment:

I think when you close first window,application checks whether there are other windows,and it doesn’t find any (so application is closing), because second window haven’t been created