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WPF 用Main函数方式启动程序

WPF默认程序启动：新建project后自动生成的App.xaml中指定程序启动方式（StartupUri="MainWindow.xaml"），如下代码所示，启动MainWindow页面

<Application x:Class="MyFirstWPFApplication.App"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:local="clr-namespace:MyFirstWPFApplication"

StartupUri="MainWindow.xaml" >

<Application.Resources>

</Application.Resources>

</Application>

WPF用Main函数方式启动程序：自己写Main函数作为启动点

1.在WPF自动生成的App.cs文件中写Main函数

public partial class App : Application     {         [STAThread]         static void Main()         {
　　　　　　　// 方式1             Application app = new Application();             MyWindow win = new MyWindow();             app.Run(win);              // 方式2             MyWindow win = new MyWindow ();               app.MainWindow = win;              win.Show();                    app.Run();                // 方式3             app.StartupUri = new Uri("MyWindow.xaml", UriKind.Relative);              app.Run();         }     }

2.自己创建一个类，写Main函数

public static class StartUpClass

{

// [STAThread] attribute指示应用程序的 COM 线程模型是单线程单元

[STAThread]

public static void Main(string[] args)

{

SingleInstanceStart SingleInstanceStart = new SingleInstanceStart();

SingleInstanceStart.Run(args);

}

WindowsFormsApplicationBase需要引用Microsoft.VisualBasic.dll

public class SingleInstanceStart : WindowsFormsApplicationBase