MainWindow.xaml.cs

using Hospital.Pages;
using Hospital.UserControls;
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 Hospital
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void ButtonOpenMenu_Click(object sender, RoutedEventArgs e)
        {
            ButtonCloseMenu.Visibility = Visibility.Visible;
            ButtonOpenMenu.Visibility = Visibility.Collapsed;
        }

        private void ButtonCloseMenu_Click(object sender, RoutedEventArgs e)
        {
            ButtonCloseMenu.Visibility = Visibility.Collapsed;
            ButtonOpenMenu.Visibility = Visibility.Visible;
        }

        private void ListViewMenu_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            Page page = null;

            switch (((ListViewItem)((ListView)sender).SelectedItem).Name)
            {
                case "ItemHome":
                    page = new UserDatailsPage();
                    Main.Content = page;
                    break;
                case "ItemCreate":
                    page = new CreatePage();
                    Main.Content = page;
                    break;
                case "ItemList":
                    page = new UserListPage();
                    Main.Content = page;
                    break;
                default:
                    break;
            }
        }
    }
}