//File:Window.xaml.vb Imports System Imports System.Windows Imports System.Windows.Controls Imports System.Windows.Data Imports System.Windows.Documents Imports System.Windows.Media Imports System.Windows.Shapes Namespace WpfApplication1 Public Partial Class Window1 Inherits Window Public Sub New() InitializeComponent() End Sub Private Sub button_Click(sender As Object, e As RoutedEventArgs) MessageBox.Show("You", "Nice!") End Sub End Class End Namespace