WPF C# Tutorial

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="WPF" Height="300" Width="300">
    
        
            List Item 1
            List Item 2
            List Item 3
        
        
            
                        
        

        
            
            
            
        
    

//File:Window.xaml.cs
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
namespace WpfApplication1
{
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
        }
        private void btnAddListItem_Click(object sender, RoutedEventArgs e)
        {
            if (textBox.Text.Length == 0)
            {
                MessageBox.Show("Enter text to add to the list.", Title);
            }
            else
            {
                ListBoxItem item = new ListBoxItem();
                item.Content = textBox.Text;
                item.IsSelected = true;
                item.HorizontalAlignment = HorizontalAlignment.Center;
                item.FontWeight = FontWeights.Bold;
                item.FontFamily = new FontFamily("Tahoma");
                listBox1.Items.Add(item);
                textBox.Clear();
                textBox.Focus();
            }
        }
        private void btnDeleteListItem_Click(object sender, RoutedEventArgs e)
        {
            if (listBox1.SelectedItems.Count == 0)
            {
                MessageBox.Show("Select list items to delete.", Title);
            }
            else
            {
                while (listBox1.SelectedItems.Count > 0)
                {
                    listBox1.Items.Remove(listBox1.SelectedItems[0]);
                }
            }
        }
        private void btnSelectAll_Click(object sender, RoutedEventArgs e)
        {
            listBox1.SelectAll();
        }
    }
}