WPF: Keeping an object running?

I'm having problems understanding how WPF app.xaml works. Is it like Main method in winforms programing?

What I want is a MainController class which keeps track of my Window object. For example:

public MainController()
{
  _windowMain = new WindowMain(this);
}

public WindowMain GetWindowMain
{
  ge开发者_Python百科t { _windowMain; }
}

And so on with all the windows I have in my project. But where should my MainController be initialized?

Check the StartupUri property of the App.xaml file. It links in a Window's XAML file within your project to be launched at startup.

If you want to avoid this, then I believe you can override a method in App.xaml.cs to launch the window explicitly via your controller.

You should understand that the compiler makes a class called 'App' that overrides System.Windows.Application by compiling your App.xaml and App.xaml.cs files. Check the documentation for that class to learn more about the lifecycle management of your WPF application.