Listen to TextBox text changed event

<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title=" " Height="300" Width="300" Loaded="Window1_Loaded">
<Grid>
<Viewbox>
<TextBox x:Name="tbxEditMe" Text="Edit Me..." />
</Viewbox>
</Grid>
</Window>
//File:Window.xaml.vb
Imports System
Imports System.ComponentModel
Imports System.Windows
Imports System.Windows.Controls
Namespace WpfApplication1
Public Partial Class Window1
Inherits Window
Public Sub New()
InitializeComponent()
End Sub
Private Sub Window1_Loaded(sender As Object, e As RoutedEventArgs)
Dim descriptor As DependencyPropertyDescriptor = DependencyPropertyDescriptor.FromProperty(TextBox.TextProperty, GetType(TextBox))
descriptor.AddValueChanged(tbxEditMe, AddressOf tbxEditMe_TextChanged)
End Sub
Private Sub tbxEditMe_TextChanged(sender As Object, e As EventArgs)
MessageBox.Show("", "changed")
End Sub
End Class
End Namespace
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