■ FileSavePicker 클래스의 PickSaveFileAsync 메소드를 사용해 파일을 저장하는 방법을 보여준다.
▶ WindowHelper.cs
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using System.Collections.Generic; using Microsoft.UI.Xaml; using Microsoft.UI.Xaml.Media; namespace TestProject { /// <summary> /// 윈도우 헬퍼 /// </summary> public class WindowHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 활성 윈도우 리스트 /// </summary> private static List<Window> _activeWindowList = new List<Window>(); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 루트 테마 - RootTheme /// <summary> /// 루트 테마 /// </summary> public static ElementTheme RootTheme { get { foreach(Window window in _activeWindowList) { if(window.Content is FrameworkElement rootElement) { return rootElement.RequestedTheme; } } return ElementTheme.Default; } } #endregion #region 활성 윈도우 리스트 - ActiveWindowList /// <summary> /// 활성 윈도우 리스트 /// </summary> public static List<Window> ActiveWindowList { get { return _activeWindowList; } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 윈도우 추적하기 - TrackWindow(window) /// <summary> /// 윈도우 추적하기 /// </summary> /// <param name="window">윈도우</param> public static void TrackWindow(Window window) { window.Closed += (sender, e) => { _activeWindowList.Remove(window); }; _activeWindowList.Add(window); } #endregion #region 윈도우 생성하기 - CreateWindow() /// <summary> /// 윈도우 생성하기 /// </summary> /// <returns>윈도우</returns> public static Window CreateWindow() { Window window = new Window { SystemBackdrop = new MicaBackdrop() }; TrackWindow(window); return window; } #endregion #region 엘리먼트를 위한 윈도우 구하기 - GetWindowForElement(element) /// <summary> /// 엘리먼트를 위한 윈도우 구하기 /// </summary> /// <param name="element">엘리먼트</param> /// <returns>윈도우</returns> public static Window GetWindowForElement(UIElement element) { if(element.XamlRoot != null) { foreach(Window window in _activeWindowList) { if(element.XamlRoot == window.Content.XamlRoot) { return window; } } } return null; } #endregion } } |
▶ MainWindow.xaml
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<?xml version="1.0" encoding="utf-8"?> <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"> <Frame Name="frame" /> </Window> |
▶ MainWindow.xaml.cs
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using Microsoft.UI.Xaml; namespace TestProject { /// <summary> /// 메인 윈도우 /// </summary> public sealed partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); WindowHelper.TrackWindow(this); } #endregion } } |
▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8"?> <Page x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" FontFamily="나눔고딕코딩" FontSize="16"> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center" Orientation="Horizontal"> <Button Name="saveFileButton" HorizontalAlignment="Center" Padding="10" Content="Save File" /> <TextBlock Name="outputTextBlock" VerticalAlignment="Center" Margin="10 0 0 0" TextWrapping="Wrap" /> </StackPanel> </Page> |
▶ MainPage.xaml.cs
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using System; using System.Collections.Generic; using System.IO; using Windows.Storage; using Windows.Storage.Pickers; using Windows.Storage.Provider; using WinRT.Interop; using Microsoft.UI.Xaml; using Microsoft.UI.Xaml.Controls; namespace TestProject { /// <summary> /// 메인 페이지 /// </summary> public sealed partial class MainPage : Page { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); this.saveFileButton.Click += saveFileButton_Click; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region Save File 버튼 클릭시 처리하기 - saveFileButton_Click(sender, e) /// <summary> /// Save File 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private async void saveFileButton_Click(object sender, RoutedEventArgs e) { this.outputTextBlock.Text = ""; FileSavePicker fileSavePicker = new FileSavePicker(); Window window = WindowHelper.GetWindowForElement(this); IntPtr windowHandle = WindowNative.GetWindowHandle(window); InitializeWithWindow.Initialize(fileSavePicker, windowHandle); fileSavePicker.SuggestedStartLocation = PickerLocationId.DocumentsLibrary; fileSavePicker.FileTypeChoices.Add("Plain Text", new List<string>() { ".txt" }); fileSavePicker.SuggestedFileName = "sample.txt"; StorageFile storageFile = await fileSavePicker.PickSaveFileAsync(); if(storageFile != null) { CachedFileManager.DeferUpdates(storageFile); using(Stream stream = await storageFile.OpenStreamForWriteAsync()) { using(StreamWriter writer = new StreamWriter(stream)) { writer.WriteLine("테스트 문자열 입니다."); } } FileUpdateStatus status = await CachedFileManager.CompleteUpdatesAsync(storageFile); if (status == FileUpdateStatus.Complete) { this.outputTextBlock.Text = "File " + storageFile.Name + " was saved."; } else if (status == FileUpdateStatus.CompleteAndRenamed) { this.outputTextBlock.Text = "File " + storageFile.Name + " was renamed and saved."; } else { this.outputTextBlock.Text = "File " + storageFile.Name + " couldn't be saved."; } } else { this.outputTextBlock.Text = "Operation cancelled."; } } #endregion } } |
