How to start a WPF Program

1. The first method is the default method, which is configured through startupuri = "mainwindow. XAML" in APP. XAML.

1 <Application x:Class="BaseElement.App"2                     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"3                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"4                     StartupUri="MainWindow.xaml">5       <Application.Resources>6       </Application.Resources>7 </Application>

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2. Create an application object to start the program. Right-click the project and choose Properties> Application> startup object to set startup.

 1  public class Startup 2     { 3         [STAThread] 4         public static void Main() 5         { 6  7             // Create the application. 8             Application app = new Application(); 9             // Create the main window.10             MainWindow win = new MainWindow();11             // Launch the application and show the main window.12             app.Run(win);13         }14     }

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3. Modify the app. XAML. CS file. Add the main method. Delete the main method in the app. G. CS file at the same time

1 /// <summary> 2 /// app. interaction logic of XAML 3 // </Summary> 4 public partial class app: Application 5 {6 7 [stathread ()] 8 public static void main () 9 {10 baseelement. app = new baseelement. APP (); 11 app. initializecomponent (); 12 app. run (); 13} 14 public void initializecomponent () 15 {16 this. startupuri = new uri ("mainwindow. XAML ", system. urikind. relative); 17} 18}

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4. The fourth method is to modify the app. XAML. CS file, which is not the same as the third method. This method also includes the command-line arguments (command line parameter)

 1     public partial class App : Application 2     { 3         [STAThread] 4         public static void Main() 5         { 6             App app = new App(); 7             app.Run(); 8         } 9 10         public App()11         {12             this.Startup += new StartupEventHandler(App_Startup);13         }14 15         private static void App_Startup(object sender, StartupEventArgs e)16         {17             // Create, but don‘t show the main window.18             MainWindow win = new MainWindow();19             if (e.Args.Length > 0)20             {21                 string file = e.Args[0];22                 if (System.IO.File.Exists(file))23                 {24                     // Configure the main window.25                     win.LoadFile(file);26                 }27             }28             else29             {30                 // (Perform alternate initialization here when31                 // no command-line arguments are supplied.)32             }33             // This window will automatically be set as the Application.MainWindow.34             win.Show();35         }36     }

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I wrote my blog for the first time. If you have any questions, please include them. I just learned about WPF and I am a newbie!

How to start a WPF Program