Step 1: Create an empty WPF using Visual Studio, enter the name for the application and click on OK



Step 2: Create a button using the following code or drag and drop a button from the ToolBox of Visual Studio 2013.



Code:

  1. <Button Content="Button" HorizontalAlignment="Left" Margin="133,120,0,0" VerticalAlignment="Top" Width="75"/>
Step 3: Name the button content and double click on the button, you will be getting this window



Enter the following code to make you click event activated with message box:
  1. MessageBox.Show("hI How are you");
So the entire code of MainWindow.xaml.cs should be as below:
  1. using System;
  2. usingSystem.Collections.Generic;
  3. usingSystem.Linq;
  4. usingSystem.Text;
  5. usingSystem.Threading.Tasks;
  6. usingSystem.Windows;
  7. usingSystem.Windows.Controls;
  8. usingSystem.Windows.Data;
  9. usingSystem.Windows.Documents;
  10. usingSystem.Windows.Input;
  11. usingSystem.Windows.Media;
  12. usingSystem.Windows.Media.Imaging;
  13. usingSystem.Windows.Navigation;
  14. usingSystem.Windows.Shapes;
  15. namespacemessageapp
  16. {
  17. ///<summary>
  18. /// Interaction logic for MainWindow.xaml
  19. ///</summary>
  20. publicpartialclassMainWindow: Window
  21. {
  22. publicMainWindow()
  23. {
  24. InitializeComponent();
  25. }
  26. privatevoidButton_Click(object sender, RoutedEventArgs e)
  27. {
  28. MessageBox.Show("hI How are you");
  29. }
  30. }
  31. }
Now run the WPF application: