■ DispatcherObject 클래스의 Dispatcher 속성을 사용해 장기 실행 계산이 포함된 단일 스레드 애플리케이션 만드는 방법을 보여준다.
▶ MainWindow.xaml
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<Window x:Class="TestProject.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="TestProject" Width="800" Height="600" FontFamily="나눔고딕코딩" FontSize="16"> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"> <Button Name="startButton" Width="100" Height="30" Content="Start" /> <StackPanel Margin="0 30 0 0" Orientation="Horizontal"> <TextBlock> Biggest Prime Found : </TextBlock> <TextBlock Name="bigPrimeTextBlock" Margin="10 0 0 0"> 3 </TextBlock> </StackPanel> </StackPanel> </Window> |
▶ MainWindow.xaml.cs
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using System; using System.Diagnostics; using System.Windows; using System.Windows.Threading; namespace TestProject { /// <summary> /// 메인 윈도우 /// </summary> public partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Delegate ////////////////////////////////////////////////////////////////////////////////////////// Public #region 다음 소수 대리자 - NextPrimeDelegate() /// <summary> /// 다음 소수 대리자 /// </summary> public delegate void NextPrimeDelegate(); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 계산 계속 여부 /// </summary> private bool continueCalculating; /// <summary> /// 소수가 아닌 경우 /// </summary> private bool notPrime; /// <summary> /// 숫자 /// </summary> private long number = 3; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); this.startButton.Click += startButton_Click; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region Start 버튼 클릭시 처리하기 - startButton_Click(sender, e) /// <summary> /// Start 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void startButton_Click(object sender, EventArgs e) { if(this.continueCalculating) { this.continueCalculating = false; this.startButton.Content = "Resume"; } else { this.continueCalculating = true; this.startButton.Content = "Stop"; this.startButton.Dispatcher.BeginInvoke(DispatcherPriority.Normal, new NextPrimeDelegate(CheckNextNumber)); } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 다음 숫자 체크하기 - CheckNextNumber() /// <summary> /// 다음 숫자 체크하기 /// </summary> public void CheckNextNumber() { this.notPrime = false; for(long i = 3; i <= Math.Sqrt(this.number); i++) { if(this.number % i == 0) { this.notPrime = true; break; } } if(!this.notPrime) { this.bigPrimeTextBlock.Text = this.number.ToString(); } this.number += 2; if(this.continueCalculating) { this.startButton.Dispatcher.BeginInvoke(DispatcherPriority.SystemIdle, new NextPrimeDelegate(CheckNextNumber)); } } #endregion } } |
