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WPF Prism set usercontrol as Shell

I'm new to WPF Prism, I have seen many online article about Prism and I found all of example code are using windows application as shell, so I have a question, can i let UserControl as a shell? if not why?

Solution

  • The shell is supposed to be a window since a WPF application always has a top-level window (unless hosted in a broswer as an XBAP) but you could set the Content of the window to a user control in the InitializeShell() method of your bootstrapper:

    protected override DependencyObject CreateShell()
{
    return Container.Resolve<MainWindow>();
}

protected override void InitializeShell()
{
    Application.Current.MainWindow.Content = new UserControl();
    Application.Current.MainWindow.Show();
}

    A UserControl must be hosted in a window or page. It is not a top-level control.