On Key Down Handler : Key Event « Windows Presentation Foundation « C# / C Sharp

1. C# / C Sharp
2. Windows Presentation Foundation
3. Key Event

On Key Down Handler

  


<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="KeyDown Sample" Height="400" Width="500">
  <StackPanel>
    <TextBlock Width="300" Height="20">
      Type some text into the TextBox and press the Enter key.
    </TextBlock>
    <TextBox Width="300" Height="30" Name="textBox1"
             KeyDown="OnKeyDownHandler"/>
    <TextBlock Width="300" Height="100" Name="textBlock1"/>
  </StackPanel>
</Window>

//File:Window.xaml.cs

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;


namespace WpfApplication1
{
    public partial class Window1 : Window
    {

        public Window1()
        {
            InitializeComponent();
        }
        private void OnKeyDownHandler(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Return)
            {
                textBlock1.Text = "You Entered: " + textBox1.Text;
            }
        }
    }
}

   
    
  

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7.	Programmatically Extract an Element's Style with DefaultStyleKeyProperty
8.	Provide Quick Keyboard Access to Buttons
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10.	Reading individual key state with Keyboard.IsKeyDown
11.	Suppress Keyboard and Mouse Events
12.	Use KeyBinding to bind Key event to TextBox.InputBindings
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