<Window x:Class="WpfHelloWorld.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Title="MainWindow" Height="350" Width="525">

    <Grid>

        <Grid.RowDefinitions>

            <RowDefinition Height="30"></RowDefinition>

            <RowDefinition Height="*"></RowDefinition>

            <RowDefinition Height="30"></RowDefinition>

        </Grid.RowDefinitions>

        <TextBox Name="txtMessage" Grid.Row="0" Margin="5, 5, 5, 5" />

        <Button Name="btnOK" Content="확인" Grid.Row="2" />

    </Grid>

</Window>

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

namespace WpfHelloWorld

{

    /// <summary>

    /// Interaction logic for MainWindow.xaml

    /// </summary>

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

            btnOK.Click += new RoutedEventHandler(btnOK_Click);

        }

        void btnOK_Click(object sender, RoutedEventArgs e)

        {

            MessageBox.Show(txtMessage.Text);

        }

    }

}