Show and hide picture using the same button in WPF

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WPF

The program below hides a picture when clicking a button,
What I want is the program to check if the visibility property is hidden, and if so, to set it visible, and if is visible, to set it hidden. So by clicking the same button to show and hide the picture successively.
I suppose this will be posible with some kind of IF command, but i really grasp very little of WPF since I began yesterday

Can you guys give me some example of IF command in WPF, or how can i procide in this program...

Thanks

What I have tried:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApp2
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            linevertical.Visibility = Visibility.Hidden;
        }
    }
}