■ DelegateCommand 클래스를 사용해 대리자 명령을 실행하는 방법을 보여준다.
▶ MainWindow.xaml
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<Window x:Class="TestProject.Views.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:prism="http://prismlibrary.com/" prism:ViewModelLocator.AutoWireViewModel="True" Width="800" Height="600" Title="DelegateCommand 클래스 : 대리자 명령 사용하기" FontFamily="나눔고딕코딩" FontSize="16"> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center"> <CheckBox Margin="10" Padding="5" IsChecked="{Binding IsEnabled}" VerticalContentAlignment="Center" Content="Can Execute Command" /> <Button Margin="10" Padding="5" Command="{Binding ExecuteDelegateCommand}" Content="DelegateCommand" /> <Button Margin="10" Padding="5" Command="{Binding ObservePropertyDelegateCommand}" Content="DelegateCommand ObservesProperty" /> <Button Margin="10" Padding="5" Command="{Binding ObserveCanExecuteDelegateCommand}" Content="DelegateCommand ObservesCanExecute" /> <Button Margin="10" Padding="5" Command="{Binding ExecuteGenericDelegateCommand}" CommandParameter="Passed Parameter" Content="DelegateCommand Generic" /> <TextBlock Margin="10" Padding="5" FontSize="22" Text="{Binding UpdateText}" /> </StackPanel> </Window> |
▶ MainWindow.xaml.cs
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using System.Windows; namespace TestProject.Views { /// <summary> /// 메인 윈도우 /// </summary> public partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); } #endregion } } |
▶ MainWindowViewModel.cs
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using System; using Prism.Commands; using Prism.Mvvm; namespace TestProject.ViewModels { /// <summary> /// 메인 윈도우 뷰 모델 /// </summary> public class MainWindowViewModel : BindableBase { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 이용 가능 여부 /// </summary> private bool isEnabled; /// <summary> /// 업데이트 텍스트 /// </summary> private string updateText; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 이용 가능 여부 - IsEnabled /// <summary> /// 이용 가능 여부 /// </summary> public bool IsEnabled { get { return this.isEnabled; } set { SetProperty(ref this.isEnabled, value); ExecuteDelegateCommand.RaiseCanExecuteChanged(); } } #endregion #region 업데이트 텍스트 - UpdateText /// <summary> /// 업데이트 텍스트 /// </summary> public string UpdateText { get { return this.updateText; } set { SetProperty(ref this.updateText, value); } } #endregion #region 실행 대리자 명령 - ExecuteDelegateCommand /// <summary> /// 실행 대리자 명령 /// </summary> public DelegateCommand ExecuteDelegateCommand { get; private set; } #endregion #region 속성 관찰 대리자 명령 - ObservePropertyDelegateCommand /// <summary> /// 속성 관찰 대리자 명령 /// </summary> public DelegateCommand ObservePropertyDelegateCommand { get; private set; } #endregion #region 실행 가능 여부 관찰 대리자 명령 - ObserveCanExecuteDelegateCommand /// <summary> /// 실행 가능 여부 관찰 대리자 명령 /// </summary> public DelegateCommand ObserveCanExecuteDelegateCommand { get; private set; } #endregion #region 일반 실행 대리자 명령 - ExecuteGenericDelegateCommand /// <summary> /// 일반 실행 대리자 명령 /// </summary> public DelegateCommand<string> ExecuteGenericDelegateCommand { get; private set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindowViewModel() /// <summary> /// 생성자 /// </summary> public MainWindowViewModel() { ExecuteDelegateCommand = new DelegateCommand(Execute, CanExecute); ObservePropertyDelegateCommand = new DelegateCommand(Execute, CanExecute).ObservesProperty(() => IsEnabled); ObserveCanExecuteDelegateCommand = new DelegateCommand(Execute).ObservesCanExecute(() => IsEnabled); ExecuteGenericDelegateCommand = new DelegateCommand<string>(ExecuteGeneric).ObservesCanExecute(() => IsEnabled); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 실행하기 - Execute() /// <summary> /// 실행하기 /// </summary> private void Execute() { UpdateText = $"Updated : {DateTime.Now}"; } #endregion #region 실행 가능 여부 구하기 - CanExecute() /// <summary> /// 실행 가능 여부 구하기 /// </summary> /// <returns>실행 가능 여부</returns> private bool CanExecute() { return IsEnabled; } #endregion #region 일반 실행하기 - ExecuteGeneric(parameter) /// <summary> /// 일반 실행하기 /// </summary> /// <param name="parameter">매개 변수</param> private void ExecuteGeneric(string parameter) { UpdateText = parameter; } #endregion } } |
▶ MainApplication.xaml
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<prism:PrismApplication x:Class="TestProject.MainApplication" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:prism="http://prismlibrary.com/"> </prism:PrismApplication> |
▶ MainApplication.xaml.cs
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using System.Windows; using Prism.Ioc; using Prism.Unity; using TestProject.Views; namespace TestProject { /// <summary> /// 메인 애플리케이션 /// </summary> public partial class MainApplication : PrismApplication { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 쉘 생성하기 - CreateShell() /// <summary> /// 쉘 생성하기 /// </summary> /// <returns>쉘</returns> protected override Window CreateShell() { return Container.Resolve<MainWindow>(); } #endregion #region 타입 등록하기 - RegisterTypes(containerRegistry) /// <summary> /// 타입 등록하기 /// </summary> /// <param name="containerRegistry">컨테이너 레지스트리 인터페이스</param> protected override void RegisterTypes(IContainerRegistry containerRegistry) { } #endregion } } |
