Where is the Main() Method in WPF, and How Can I Customize It?

WPF's Hidden Main() Method

In programming, the Main() method is commonly known as the entry point for execution. However, in the world of Windows Presentation Foundation (WPF), this rule seems to be bent. Newcomers to WPF may wonder, "Where is the Main() method?"

Upon creating a WPF project, you might notice the absence of a Main() method. Does this mean that WPF defies the programming standard? Not quite.

WPF automatically generates a Main() method behind the scenes. It is not explicitly visible in the App.xaml file, but it exists nonetheless. However, if you desire a custom implementation, you can bring the Main() method to the forefront.

Here's a step-by-step guide to unveil the Main() method in WPF:

1. Right-click on App.xaml in the solution explorer.
2. Select "Properties" from the context menu.
3. Locate the "Build Action" property and change its value to "Page" (from "ApplicationDefinition").

Once these changes are made, you can add your own Main() method to App.xaml.cs. It might look something like this:

[STAThread]
public static void Main()
{
    var application = new App();
    application.InitializeComponent();
    application.Run();
}

Now, you have unlocked the power of a custom Main() method in your WPF application. This approach gives you more control over the application's entry point, allowing for tailored initialization and configuration.

The above is the detailed content of Where is the Main() Method in WPF, and How Can I Customize It?. For more information, please follow other related articles on the PHP Chinese website!