//File:Window.xaml.cs using System; using System.Collections.Generic; using System.Linq; using System.Text; 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; using System.Windows.Controls.Primitives; namespace WpfApplication1 { public partial class Window1 : Window { public Window1() { InitializeComponent(); } private void btnShowPopup_Click(object sender, RoutedEventArgs e) { if (sender == btnFadePopup) { Console.WriteLine("fade"); } else if (sender == btnScrollPopup) { Console.WriteLine("scroll"); } else if (sender == btnSlidePopup) { Console.WriteLine("slide"); } else { Console.WriteLine("else"); } } } }