TextBox KeyDown : TextBox Event « Windows Presentation Foundation « VB.Net Tutorial






<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="WPF " Height="300" Width="300">
    <DockPanel LastChildFill="True">
        <TextBox DockPanel.Dock="Top" KeyDown="TextBox_KeyEvent" />
        <TextBox Name="txtLog" HorizontalAlignment="Stretch" 
                 IsReadOnly="True" VerticalScrollBarVisibility="Visible"/>
    </DockPanel>
</Window>

//File:Window.xaml.vb
Imports System
Imports System.Windows
Imports System.Windows.Input

Namespace WpfApplication1
  Public Partial Class Window1
    Inherits Window
    Public Sub New()
      InitializeComponent()
    End Sub

    Private Sub TextBox_KeyEvent(sender As Object, e As KeyEventArgs)
      Dim msg As [String] = [String].Format("{0} - {1}" & vbLf, e.RoutedEvent.Name, e.Key)

      txtLog.Text += msg
      txtLog.ScrollToEnd()
    End Sub
  End Class
End Namespace
WPF Text Box Key Down








16.5.TextBox Event
16.5.1.Provide Keyboard Access to Text BoxesProvide Keyboard Access to Text Boxes
16.5.2.TextBox PreviewTextInputTextBox PreviewTextInput
16.5.3.TextBox text changed eventTextBox text changed event
16.5.4.TextBox TextChanged eventTextBox TextChanged event
16.5.5.TextBox PreviewKeyDownTextBox PreviewKeyDown
16.5.6.TextBox KeyDownTextBox KeyDown
16.5.7.TextBox PreviewKeyUpTextBox PreviewKeyUp
16.5.8.TextBox KeyUpTextBox KeyUp
16.5.9.TextBox TextInputTextBox TextInput