<Button Content="{Binding Name}"
                            Command="{Binding DataContext.ChangePageCommand, RelativeSource={RelativeSource AncestorType={x:Type Window}}}"
                            CommandParameter="{Binding }"
                            Margin="2,5"/>

Command="{Binding DataContext.ChangePageCommand

private void FileExitClick(object sender, RoutedEventArgs e) => Application.Current.Shutdown();

<Application x:Class="ArbitrageClient.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:ArbitrageClient"
             StartupUri="MainWindow.xaml">
    <Application.Resources>

    </Application.Resources>
</Application>

public partial class App : Application
{
}

    public abstract class CommandBase : ICommand
    {
        public virtual bool CanExecute(object parameter)
        {
            return true;
        }

        public abstract void Execute(object parameter);

        public virtual string ShortcutText { get; set; }

        public virtual RubberduckHotkey Hotkey { get { return RubberduckHotkey.None; } }

        public event EventHandler CanExecuteChanged
        {
            add { CommandManager.RequerySuggested += value; }
            remove { CommandManager.RequerySuggested -= value; }

        private CommandBase _uriCommand;
        public CommandBase UriCommand
        {
            get
            {
                if (_uriCommand != null)
                {
                    return _uriCommand;
                }
                return _uriCommand = new DelegateCommand(uri =>
                {
                    Process.Start(new ProcessStartInfo(((Uri)uri).AbsoluteUri));
                });
            }
        }

        <Hyperlink Name="WebpageHyperlink"
                    NavigateUri="http://rubberduckvba.com/"
                    Command="{Binding UriCommand}"
                    CommandParameter="{Binding ElementName=WebpageHyperlink, Path=NavigateUri}">http://rubberduckvba.com/</Hyperlink>

Case ""Continued strings and parameters can be"" _
& ""lined up for easier reading, optionally ignoring"" _
& ""any operators (&+, etc) at the start of the line.""