e cancelWPF 弹出窗体

WPF 弹出窗体

这个简单 App.xaml代码： <Application x:Class="WpfApplication1.App" xmlns="/winfx/2006/xaml/presentation" xmlns:x="/winfx/2006/xaml"> <Application.Resources> </Application.Resources> </Application> App.xaml.cs代码： public partial class App : Application { public static Window1 w1; public static Window2 w2; public static Window3 w3; public App() { w1 = new Window1(); w2 = new Window2(); w3 = new Window3(); w1.Show(); } } window1后台代码： public partial class Window1 : Window { public Window1() { InitializeComponent(); } private void button1_Click(object sender, RoutedEventArgs e) { if (App.w2.Visibility == Visibility.Hidden) App.w2.Visibility = Visibility.Visible; else if (App.w2.Visibility == Visibility.Visible) App.w2.Focus(); else App.w2.Visibility = Visibility.Visible; } private void Window_Closed(object sender, EventArgs e) { Application.Current.Shutdown(); } } window2后台代码： public partial class Window2 : Window { public Window2() { InitializeComponent(); } private void button1_Click(object sender, RoutedEventArgs e) { if (App.w3.Visibility == Visibility.Hidden) App.w3.Visibility = Visibility.Visible; else if (App.w3.Visibility == Visibility.Visible) App.w3.Focus(); else App.w3.Visibility = Visibility.Visible; } private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e) { this.Visibility = Visibility.Hidden; e.Cancel = true; } } window3后台代码： public partial class Window3 : Window { public Window3() { InitializeComponent(); } private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e) { this.Visibility = Visibility.Hidden; e.Cancel = true; } }