<Window x:Class="Example1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="600" Width="600">

    <Grid>
        <Grid x:Name="MyGrid" Background="Red" Width="500" Height="500">
            <Grid.CommandBindings>
                <CommandBinding Command="{x:Static ApplicationCommands.Close}" Executed="CommandBinding_Executed" />
            </Grid.CommandBindings>
            <Button Width="100" Height="24" Content="Test"/>
        </Grid>
    </Grid>
    <Window.InputBindings>
        <KeyBinding Key="Escape" Command="{x:Static ApplicationCommands.Close}" CommandTarget="{Binding ElementName=MyGrid}"/>
    </Window.InputBindings>
</Window>

        private void CommandBinding_Executed(object sender, ExecutedRoutedEventArgs e)
        {
            var fwe = sender as UIElement;
            if (fwe != null)
            {
                fwe.Visibility = (fwe.Visibility == Visibility.Hidden) ? Visibility.Visible : Visibility.Hidden;
            }
        }