TextBox PreviewKeyUp : TextBox « Windows Presentation Foundation « C# / C Sharp

1. C# / C Sharp
2. Windows Presentation Foundation
3. TextBox

TextBox PreviewKeyUp

  


<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" PreviewKeyUp="TextBox_KeyEvent" />
        <TextBox Name="txtLog" HorizontalAlignment="Stretch" IsReadOnly="True" VerticalScrollBarVisibility="Visible"/>
    </DockPanel>
</Window>

//File:Window.xaml.cs
using System;
using System.Windows;
using System.Windows.Input;

namespace WpfApplication1
{
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
        }

        private void TextBox_KeyEvent(object sender, KeyEventArgs e)
        {
            String msg = String.Format("{0} - {1}\n",e.RoutedEvent.Name, e.Key);

            txtLog.Text += msg;
            txtLog.ScrollToEnd();
        }

    }
}

   
    
  

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