■ SelectedItemEventArgsConverter 클래스에서 항목 선택 이벤트 인자 변환자를 사용하는 방법을 보여준다.
▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"> <ListView x:Name="listView" ItemsSource="{Binding ItemList}" SelectedItem="{Binding SelectedItem, Mode=TwoWay}"> <ListView.ItemTemplate> <DataTemplate> <ViewCell> <Label Margin="10" Text="{Binding}" /> </ViewCell> </DataTemplate> </ListView.ItemTemplate> </ListView> </ContentPage> |
▶ MainPage.xaml.cs
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using System.Windows.Input; using CommunityToolkit.Maui.Behaviors; using CommunityToolkit.Maui.Converters; namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public partial class MainPage : ContentPage { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 항목 리스트 - ItemList /// <summary> /// 항목 리스트 /// </summary> public List<string> ItemList { get; set; } #endregion #region 선택 항목 - SelectedItem /// <summary> /// 선택 항목 /// </summary> public string SelectedItem { get; set; } #endregion #region 항목 선택시 명령 - ItemSelectedCommand /// <summary> /// 항목 선택시 명령 /// </summary> public ICommand ItemSelectedCommand { get; private set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); ItemList = new List<string>() { "광주", "대전", "대구", "목포", "부산", "서울", "수원", "울산", "포항" }; SelectedItem = ItemList[1]; ItemSelectedCommand = new Command<string> ( async (e) => { await DisplayAlert("INFORMATION", $"{e} 항목을 선택하였습니다.", "확인"); } ); SelectedItemEventArgsConverter converter = new SelectedItemEventArgsConverter(); EventToCommandBehavior behavior = new EventToCommandBehavior(); behavior.EventName = nameof(ListView.ItemSelected); behavior.EventArgsConverter = converter; behavior.SetBinding(EventToCommandBehavior.CommandProperty, nameof(ItemSelectedCommand)); this.listView.Behaviors.Add(behavior); BindingContext = this; } #endregion } |
▶ MauiProgram.cs
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using CommunityToolkit.Maui; namespace TestProject; /// <summary> /// MAUI 프로그램 /// </summary> public static class MauiProgram { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region MAUI 앱 생성하기 - CreateMauiApp() /// <summary> /// MAUI 앱 생성하기 /// </summary> /// <returns>MAUI 앱</returns> public static MauiApp CreateMauiApp() { MauiAppBuilder builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseMauiCommunityToolkit() .ConfigureFonts ( fontCollection => { fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" ); fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); } ); return builder.Build(); } #endregion } |
