■ MessageDialog 클래스를 사용하는 방법을 보여준다. (비동기 취소하기)
▶ MainPage.xaml
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<Page x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:TestProject" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"> <Grid Name="contentGrid" Background="{StaticResource ApplicationPageBackgroundThemeBrush}"> <Button HorizontalAlignment="Center" VerticalAlignment="Center" Content="메시지 대화 상자 표시하기" Click="button_Click" /> </Grid> </Page> |
▶ MainPage.xaml.cs
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using System; using Windows.Foundation; using Windows.UI; using Windows.UI.Popups; using Windows.UI.Xaml; using Windows.UI.Xaml.Controls; using Windows.UI.Xaml.Media; namespace TestProject { /// <summary> /// 메인 페이지 /// </summary> public sealed partial class MainPage : Page { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 비동기 작업 /// </summary> private IAsyncOperation<IUICommand> asyncOperation; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { this.InitializeComponent(); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 버튼 클릭시 처리하기 - button_Click(sender, e) /// <summary> /// 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private async void button_Click(object sender, RoutedEventArgs e) { MessageDialog messageDialog = new MessageDialog("색상을 선택해 주시기 바랍니다.", "색상 선택"); messageDialog.Commands.Add(new UICommand("빨강", null, Colors.Red )); messageDialog.Commands.Add(new UICommand("녹색", null, Colors.Green)); messageDialog.Commands.Add(new UICommand("파랑", null, Colors.Blue )); DispatcherTimer dispatcherTimer = new DispatcherTimer(); dispatcherTimer.Interval = TimeSpan.FromSeconds(5); dispatcherTimer.Tick += dispatcherTimer_Tick; dispatcherTimer.Start(); this.asyncOperation = messageDialog.ShowAsync(); IUICommand uiCommand = null; try { uiCommand = await asyncOperation; } catch(Exception) { } dispatcherTimer.Stop(); if(uiCommand == null) { return; } Color color = (Color)uiCommand.Id; this.contentGrid.Background = new SolidColorBrush(color); } #endregion #region 디스패처 타이머 틱 처리하기 - dispatcherTimer_Tick(sender, e) /// <summary> /// 디스패처 타이머 틱 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void dispatcherTimer_Tick(object sender, object e) { this.asyncOperation.Cancel(); } #endregion } } |