<Window x:Class="RoutedEvents.OnlyNumbers"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Only Numbers" Height="300" Width="300">
<StackPanel Margin="5" PreviewTextInput="pnl_PreviewTextInput" PreviewKeyDown="pnl_PreviewKeyDown">
<TextBox Margin="3" AcceptsTab="False"></TextBox>
<TextBox Margin="3"></TextBox>
<TextBox Margin="3"></TextBox>
</StackPanel>
</Window>
//File:Window.xaml.vb
Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Imaging
Imports System.Windows.Shapes
Namespace RoutedEvents
Public Partial Class OnlyNumbers
Inherits System.Windows.Window
Public Sub New()
InitializeComponent()
End Sub
Private Sub pnl_PreviewTextInput(sender As Object, e As TextCompositionEventArgs)
Dim val As Short
If Not Int16.TryParse(e.Text, val) Then
e.Handled = True
End If
End Sub
Private Sub pnl_PreviewKeyDown(sender As Object, e As KeyEventArgs)
If e.Key = Key.Space Then
e.Handled = True
End If
End Sub
End Class
End Namespace
