{"id":43257,"date":"2024-11-26T12:26:30","date_gmt":"2024-11-26T12:26:30","guid":{"rendered":"https:\/\/atmokpo.com\/w\/?p=43257"},"modified":"2024-11-26T12:26:30","modified_gmt":"2024-11-26T12:26:30","slug":"prism-015-prism%ec%9d%98-%ec%bb%a4%eb%a7%a8%eb%93%9c-%eb%b0%8f-%ec%9d%b4%eb%b2%a4%ed%8a%b8-%ea%b0%80%ec%a0%b8%ec%98%a4%ea%b8%b0-%eb%b9%84%eb%8f%99%ea%b8%b0-%ec%b2%98%eb%a6%ac%eb%a5%bc-%ec%9c%84","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/43257\/","title":{"rendered":"[Prism]  015. Prism\uc758 \ucee4\ub9e8\ub4dc \ubc0f \uc774\ubca4\ud2b8 \uac00\uc838\uc624\uae30, \ube44\ub3d9\uae30 \ucc98\ub9ac\ub97c \uc704\ud55c AsyncCommand"},"content":{"rendered":"<article>\n<p>Prism\uc740 WPF \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud558\ub294 \ub370 \uc788\uc5b4 \uac15\ub825\ud55c \ud504\ub808\uc784\uc6cc\ud06c\ub85c, MVVM(Model-View-ViewModel) \ud328\ud134\uc744 \uc9c0\uc6d0\ud558\uc5ec UI\uc640 \ube44\uc988\ub2c8\uc2a4 \ub85c\uc9c1\uc744 \ud6a8\uacfc\uc801\uc73c\ub85c \ubd84\ub9ac\ud569\ub2c8\ub2e4. \uadf8 \uc911\uc5d0\uc11c\ub3c4 \ucee4\ub9e8\ub4dc\uc640 \uc774\ubca4\ud2b8 \ucc98\ub9ac, \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \uc704\ud55c AsyncCommand\ub294 Prism\uc758 \ud070 \uc7a5\uc810 \uc911 \ud558\ub098\ub85c, \uac1c\ubc1c\uc790\uc5d0\uac8c \ub354 \ub098\uc740 \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc744 \uc81c\uacf5\ud558\uace0 \ucf54\ub4dc\uc758 \uac00\ub3c5\uc131\uc744 \ub192\uc785\ub2c8\ub2e4.<\/p>\n<h2>1. Prism\uc758 \ucee4\ub9e8\ub4dc \uc774\ud574\ud558\uae30<\/h2>\n<p>\ucee4\ub9e8\ub4dc\ub294 \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \ud2b9\uc815 \uc791\uc5c5\uc744 \uc815\uc758\ud558\ub294 \uac1d\uccb4\uc785\ub2c8\ub2e4. WPF\uc5d0\uc11c\ub294 \ucee4\ub9e8\ub4dc\ub97c \ud1b5\ud574 \uc0ac\uc6a9\uc790 \uc785\ub825\uc744 \ucc98\ub9ac\ud558\uace0, MVVM \ud328\ud134\uc5d0\uc11c\ub3c4 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \uc218\ud589\ud569\ub2c8\ub2e4. Prism\uc5d0\uc11c\ub294 <code>ICommand<\/code> \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ucee4\ub9e8\ub4dc\ub97c \uad6c\ud604\ud558\uba70, \ucee4\ub9e8\ub4dc\uc758 \uc911\uc694\ud55c \ub450 \uac00\uc9c0 \uad6c\uc131 \uc694\uc18c\ub294 <strong>CanExecute<\/strong>\uc640 <strong>Execute<\/strong>\uc785\ub2c8\ub2e4.<\/p>\n<h3>1.1 ICommand \uc778\ud130\ud398\uc774\uc2a4<\/h3>\n<p><code>ICommand<\/code>\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uba54\uc11c\ub4dc\ub97c \ud3ec\ud568\ud569\ub2c8\ub2e4:<\/p>\n<ul>\n<li><code>Execute(object parameter)<\/code>: \ucee4\ub9e8\ub4dc\ub97c \uc2e4\ud589\ud560 \ub54c \ud638\ucd9c\ub429\ub2c8\ub2e4.<\/li>\n<li><code>CanExecute(object parameter)<\/code>: \ucee4\ub9e8\ub4dc\ub97c \uc218\ud589\ud560 \uc218 \uc788\ub294\uc9c0 \uac80\uc0ac\ud569\ub2c8\ub2e4.<\/li>\n<li><code>CanExecuteChanged<\/code>: \ucee4\ub9e8\ub4dc\uc758 \uc2e4\ud589 \uac00\ub2a5 \uc5ec\ubd80\uac00 \ubcc0\uacbd\ub418\uc5c8\uc74c\uc744 \uc54c\ub9ac\ub294 \uc774\ubca4\ud2b8\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>1.2 CommandBase \ud074\ub798\uc2a4<\/h3>\n<p>Prism\uc740 <code>DelegateCommand<\/code>\uc640 <code>CompositeCommand<\/code> \uac19\uc740 \uc5ec\ub7ec \uc720\uc6a9\ud55c \ucee4\ub9e8\ub4dc \ud074\ub798\uc2a4\ub3c4 \uc81c\uacf5\ud569\ub2c8\ub2e4. <code>DelegateCommand<\/code>\ub294 \ucf54\ub4dc\uc5d0\uc11c \uc9c1\uc811 \ucee4\ub9e8\ub4dc\ub97c \uc815\uc758\ud560 \uc218 \uc788\ub3c4\ub85d \ud558\uba70, \ube44\uc988\ub2c8\uc2a4 \ub85c\uc9c1\uc744 ViewModel\uc5d0 \uc791\uc131\ud560 \uc218 \uc788\ub294 \uc720\uc5f0\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<pre><code>\n    public class MyViewModel : BindableBase\n    {\n        private string _message;\n        public string Message\n        {\n            get { return _message; }\n            set { SetProperty(ref _message, value); }\n        }\n\n        public DelegateCommand<string> ShowMessageCommand { get; private set; }\n\n        public MyViewModel()\n        {\n            ShowMessageCommand = new DelegateCommand<string>(ShowMessage);\n        }\n\n        private void ShowMessage(string message)\n        {\n            Message = message;\n        }\n    }\n    <\/string><\/string><\/code><\/pre>\n<h2>2. \uc774\ubca4\ud2b8 \uac00\uc838\uc624\uae30<\/h2>\n<p>\uc774\ubca4\ud2b8\ub294 UI\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \ub3d9\uc791(\uc608: \ubc84\ud2bc \ud074\ub9ad)\uc744 \ucc98\ub9ac\ud560 \ubdf0\uc640 \uad00\ub828\ub41c \ub85c\uc9c1\uc744 \ubd84\ub9ac\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. Prism\uc740 <code>EventAggregator<\/code>\ub97c \ud1b5\ud574 \ub2e4\uc591\ud55c \ubaa8\ub4c8 \uac04\uc758 \ud1b5\uc2e0\uc744 \uc9c0\uc6d0\ud558\uc5ec \uc774\ubca4\ud2b8 \uae30\ubc18 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ucd09\uc9c4\ud569\ub2c8\ub2e4.<\/p>\n<h3>2.1 EventAggregator<\/h3>\n<p><code>EventAggregator<\/code>\ub294 \uc774\ubca4\ud2b8\ub97c \uac8c\uc2dc\ud558\uace0 \uad6c\ub3c5\ud558\ub294 \uba54\ucee4\ub2c8\uc998\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<pre><code>\n    public class MyMessage\n    {\n        public string Text { get; set; }\n    }\n\n    public class Publisher\n    {\n        private readonly IEventAggregator _eventAggregator;\n\n        public Publisher(IEventAggregator eventAggregator)\n        {\n            _eventAggregator = eventAggregator;\n        }\n\n        public void PublishMessage(string messageText)\n        {\n            var message = new MyMessage { Text = messageText };\n            _eventAggregator.GetEvent<pubsubevent<mymessage>&gt;().Publish(message);\n        }\n    }\n\n    public class Subscriber\n    {\n        public Subscriber(IEventAggregator eventAggregator)\n        {\n            eventAggregator.GetEvent<pubsubevent<mymessage>&gt;().Subscribe(OnMessageReceived);\n        }\n\n        private void OnMessageReceived(MyMessage message)\n        {\n            \/\/ Do something with the message\n        }\n    }\n    <\/pubsubevent<mymessage><\/pubsubevent<mymessage><\/code><\/pre>\n<h2>3. \ube44\ub3d9\uae30 \ucc98\ub9ac\ub97c \uc704\ud55c AsyncCommand<\/h2>\n<p>Prism\uc5d0\uc11c \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \uad00\ub9ac\ud558\uae30 \uc704\ud574 <code>AsyncCommand<\/code>\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 UI \uc2a4\ub808\ub4dc\uac00 \ucc28\ub2e8\ub418\uc9c0 \uc54a\uace0 \uc0ac\uc6a9\uc790\uac00 \ubd80\ub4dc\ub7fd\uac8c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4.<\/p>\n<h3>3.1 AsyncCommand \uc0ac\uc6a9\ud558\uae30<\/h3>\n<p>Prism\uc758 <code>AsyncCommand<\/code>\ub294 \ube44\ub3d9\uae30 \uba54\uc11c\ub4dc\ub97c \ucee4\ub9e8\ub4dc\ub85c \ub798\ud551\ud560 \uc218 \uc788\ub3c4\ub85d \ub3c4\uc640\uc90d\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c <code>Task<\/code>\ub97c \ubc18\ud658\ud558\ub294 \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud558\uc5ec \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \uc815\uc758\ud569\ub2c8\ub2e4.<\/p>\n<pre><code>\n    public class MyAsyncViewModel : BindableBase\n    {\n        public AsyncCommand LoadDataCommand { get; private set; }\n\n        public MyAsyncViewModel()\n        {\n            LoadDataCommand = new AsyncCommand(LoadDataAsync);\n        }\n\n        private async Task LoadDataAsync()\n        {\n            \/\/ \ube44\ub3d9\uae30 \ub370\uc774\ud130 \ub85c\ub4dc \ub85c\uc9c1\n            await Task.Delay(2000);\n            \/\/ \ub370\uc774\ud130 \ub85c\ub4dc \ud6c4 UI \uc5c5\ub370\uc774\ud2b8\n        }\n    }\n    <\/code><\/pre>\n<h2>4. AsyncCommand\ub85c \ube44\ub3d9\uae30 \ucc98\ub9ac \uad6c\ud604 \uc2dc \uace0\ub824\uc0ac\ud56d<\/h2>\n<ul>\n<li><strong>UI \uc2a4\ub808\ub4dc \ucc28\ub2e8 \ubc29\uc9c0:<\/strong> \ube44\ub3d9\uae30 \ucc98\ub9ac\ub97c \ud1b5\ud574 \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\uc5d0\ub7ec \ucc98\ub9ac:<\/strong> \ube44\ub3d9\uae30 \uba54\uc11c\ub4dc \ub0b4\uc5d0\uc11c \uc801\uc808\ud55c \uc5d0\ub7ec \ucc98\ub9ac \ub85c\uc9c1\uc744 \uad6c\ud604\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc0c1\ud0dc \uad00\ub9ac:<\/strong> \ube44\ub3d9\uae30 \uc791\uc5c5\uc758 \uc9c4\ud589 \uc0c1\ud669\uc744 ViewModel\uc5d0\uc11c \uad00\ub9ac\ud558\ub3c4\ub85d \uc124\uacc4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>4.1 \uc5d0\ub7ec \ucc98\ub9ac \uc608\uc81c<\/h3>\n<pre><code>\n    private async Task LoadDataAsync()\n    {\n        try\n        {\n            \/\/ \ube44\ub3d9\uae30 \ub370\uc774\ud130 \ub85c\ub4dc \ub85c\uc9c1\n            await Task.Delay(2000);\n        }\n        catch (Exception ex)\n        {\n            \/\/ \uc5d0\ub7ec \ucc98\ub9ac \ub85c\uc9c1\n        }\n    }\n    <\/code><\/pre>\n<h2>5. \uacb0\ub860<\/h2>\n<p>Prism\uc758 \ucee4\ub9e8\ub4dc, \uc774\ubca4\ud2b8 \uad00\ub9ac \ubc0f \ube44\ub3d9\uae30 \ucc98\ub9ac \ubc29\ubc95\uc740 WPF \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub354 \uad6c\uc870\ud654\ub418\uace0 \uc720\uc9c0\ubcf4\uc218\uac00 \uc6a9\uc774\ud558\uac8c \ub9cc\ub4ed\ub2c8\ub2e4. MVVM \ud328\ud134\uc744 \uc81c\ub300\ub85c \ud65c\uc6a9\ud558\uba74 \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc744 \ud06c\uac8c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. Prism\uc758 \uc7a5\uc810\ub4e4\uc744 \ud65c\uc6a9\ud558\uc5ec \ube44\uc988\ub2c8\uc2a4 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ub9de\ub294 \ud6a8\uc728\uc801\uc778 WPF \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>Prism\uc740 WPF \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud558\ub294 \ub370 \uc788\uc5b4 \uac15\ub825\ud55c \ud504\ub808\uc784\uc6cc\ud06c\ub85c, MVVM(Model-View-ViewModel) \ud328\ud134\uc744 \uc9c0\uc6d0\ud558\uc5ec UI\uc640 \ube44\uc988\ub2c8\uc2a4 \ub85c\uc9c1\uc744 \ud6a8\uacfc\uc801\uc73c\ub85c \ubd84\ub9ac\ud569\ub2c8\ub2e4. \uadf8 \uc911\uc5d0\uc11c\ub3c4 \ucee4\ub9e8\ub4dc\uc640 \uc774\ubca4\ud2b8 \ucc98\ub9ac, \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \uc704\ud55c AsyncCommand\ub294 Prism\uc758 \ud070 \uc7a5\uc810 \uc911 \ud558\ub098\ub85c, \uac1c\ubc1c\uc790\uc5d0\uac8c \ub354 \ub098\uc740 \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc744 \uc81c\uacf5\ud558\uace0 \ucf54\ub4dc\uc758 \uac00\ub3c5\uc131\uc744 \ub192\uc785\ub2c8\ub2e4. 1. Prism\uc758 \ucee4\ub9e8\ub4dc \uc774\ud574\ud558\uae30 \ucee4\ub9e8\ub4dc\ub294 \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \ud2b9\uc815 \uc791\uc5c5\uc744 \uc815\uc758\ud558\ub294 \uac1d\uccb4\uc785\ub2c8\ub2e4. WPF\uc5d0\uc11c\ub294 \ucee4\ub9e8\ub4dc\ub97c \ud1b5\ud574 \uc0ac\uc6a9\uc790 &hellip; <a href=\"https:\/\/atmokpo.com\/w\/43257\/\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;[Prism]  015. Prism\uc758 \ucee4\ub9e8\ub4dc \ubc0f \uc774\ubca4\ud2b8 \uac00\uc838\uc624\uae30, \ube44\ub3d9\uae30 \ucc98\ub9ac\ub97c \uc704\ud55c AsyncCommand&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[39],"tags":[],"class_list":["post-43257","post","type-post","status-publish","format-standard","hentry","category-wpf-"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Prism] 015. Prism\uc758 \ucee4\ub9e8\ub4dc \ubc0f \uc774\ubca4\ud2b8 \uac00\uc838\uc624\uae30, \ube44\ub3d9\uae30 \ucc98\ub9ac\ub97c \uc704\ud55c AsyncCommand - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atmokpo.com\/w\/43257\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Prism] 015. Prism\uc758 \ucee4\ub9e8\ub4dc \ubc0f \uc774\ubca4\ud2b8 \uac00\uc838\uc624\uae30, \ube44\ub3d9\uae30 \ucc98\ub9ac\ub97c \uc704\ud55c AsyncCommand - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"og:description\" content=\"Prism\uc740 WPF \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud558\ub294 \ub370 \uc788\uc5b4 \uac15\ub825\ud55c \ud504\ub808\uc784\uc6cc\ud06c\ub85c, MVVM(Model-View-ViewModel) \ud328\ud134\uc744 \uc9c0\uc6d0\ud558\uc5ec UI\uc640 \ube44\uc988\ub2c8\uc2a4 \ub85c\uc9c1\uc744 \ud6a8\uacfc\uc801\uc73c\ub85c \ubd84\ub9ac\ud569\ub2c8\ub2e4. \uadf8 \uc911\uc5d0\uc11c\ub3c4 \ucee4\ub9e8\ub4dc\uc640 \uc774\ubca4\ud2b8 \ucc98\ub9ac, \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \uc704\ud55c AsyncCommand\ub294 Prism\uc758 \ud070 \uc7a5\uc810 \uc911 \ud558\ub098\ub85c, \uac1c\ubc1c\uc790\uc5d0\uac8c \ub354 \ub098\uc740 \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc744 \uc81c\uacf5\ud558\uace0 \ucf54\ub4dc\uc758 \uac00\ub3c5\uc131\uc744 \ub192\uc785\ub2c8\ub2e4. 1. Prism\uc758 \ucee4\ub9e8\ub4dc \uc774\ud574\ud558\uae30 \ucee4\ub9e8\ub4dc\ub294 \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \ud2b9\uc815 \uc791\uc5c5\uc744 \uc815\uc758\ud558\ub294 \uac1d\uccb4\uc785\ub2c8\ub2e4. WPF\uc5d0\uc11c\ub294 \ucee4\ub9e8\ub4dc\ub97c \ud1b5\ud574 \uc0ac\uc6a9\uc790 &hellip; \ub354 \ubcf4\uae30 &quot;[Prism] 015. Prism\uc758 \ucee4\ub9e8\ub4dc \ubc0f \uc774\ubca4\ud2b8 \uac00\uc838\uc624\uae30, \ube44\ub3d9\uae30 \ucc98\ub9ac\ub97c \uc704\ud55c AsyncCommand&quot;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/atmokpo.com\/w\/43257\/\" \/>\n<meta property=\"og:site_name\" content=\"\ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"article:published_time\" content=\"2024-11-26T12:26:30+00:00\" \/>\n<meta name=\"author\" content=\"root\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@bebubo4\" \/>\n<meta name=\"twitter:site\" content=\"@bebubo4\" \/>\n<meta name=\"twitter:label1\" content=\"\uae00\uc4f4\uc774\" \/>\n\t<meta name=\"twitter:data1\" content=\"root\" \/>\n\t<meta name=\"twitter:label2\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/atmokpo.com\/w\/43257\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/atmokpo.com\/w\/43257\/\"},\"author\":{\"name\":\"root\",\"@id\":\"https:\/\/atmokpo.com\/w\/#\/schema\/person\/91b6b3b138fbba0efb4ae64b1abd81d7\"},\"headline\":\"[Prism] 015. 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