[C#/WPF] Dispatcher 클래스 : PushFrame 메소드를 사용해 UI 업데이트 하기

TestProject.zip

0.01MB

▶ MainWindow.xaml

<Window x:Class="TestProject.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="800"
    Height="600"
    Title="Dispatcher 클래스 : PushFrame 메소드를 사용해 UI 업데이트 하기"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Grid>
        <StackPanel
            HorizontalAlignment="Center"
            VerticalAlignment="Center">
            <TextBox Name="textBox1"
                Width="100"
                Height="25"
                HorizontalContentAlignment="Right"
                VerticalContentAlignment="Center" />
            <Button Name="runButton"
                Margin="0 10 0 0"
                Width="100"
                Height="30"
                Content="실행" />
        </StackPanel>
    </Grid>
</Window>

 

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▶ MainWindow.xaml.cs

using System.Threading;
using System.Windows;
using System.Windows.Threading;

namespace TestProject
{
    /// <summary>
    /// 메인 윈도우
    /// </summary>
    public partial class MainWindow : Window
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainWindow()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainWindow()
        {
            InitializeComponent();

            this.runButton.Click += runButton_Click;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 실행 버튼 클릭시 처리하기 - runButton_Click(sender, e)

        /// <summary>
        /// 실행 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void runButton_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                this.runButton.IsEnabled = false;

                for(int i = 0; i < 100; i++)
                {
                    this.textBox1.Text = i.ToString();

                    DoEvents();

                    Thread.Sleep(10);
                }
            }
            finally
            {
                this.runButton.IsEnabled = true;
            }
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region 프레임 종료하기 - ExitFrame(frame)

        /// <summary>
        /// 프레임 종료하기
        /// </summary>
        /// <param name="frame">프레임</param>
        /// <returns>처리 결과</returns>
        private object ExitFrame(object frame)
        {
            ((DispatcherFrame)frame).Continue = false;

            return null;
        }

        #endregion
        #region 이벤트 실행하기 - DoEvents()

        /// <summary>
        /// 이벤트 실행하기
        /// </summary>
        private void DoEvents()
        {
            DispatcherFrame frame = new DispatcherFrame();

            Dispatcher.CurrentDispatcher.BeginInvoke
            (
                DispatcherPriority.Background,
                new DispatcherOperationCallback(ExitFrame),
                frame
            );

            Dispatcher.PushFrame(frame);
        }

        #endregion
    }
}